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Mar 01, 2021 Make a backup of any files that you want to keep.Erasing your Mac permanently deletes its files. If you want to restore your Mac to factory settings, such as to prepare it for a new owner, first learn what to do before you sell, give away, or trade in your Mac.
- Best Buy customers often prefer the following products when searching for Headset For Macbook. Browse the top-ranked list of Headset For Macbook below along with associated reviews and opinions. Logitech - H390 USB Headset with Noise-Canceling Microphone - Black Model: 981-000014.
- Setting up USB Headset on a MacThis is prep for PIA: Flipping the Classroom 2015.
- G2000 Gaming Headset for PS5, PS4, PC, Xbox One, Surround Sound Over Ear Headphones with Mic, LED Light for Mac Laptop Switch Playstation Xbox Series X/S Sep 25.
- DeeP - v6.0a (still searching) DeeP - v6.01 (still searching) DeeP - v6.10 (still searching) DeeP - v6.11; DeeP - v6.12 (still searching) DeeP - v6.13.
These steps apply only to Mac computers with an Intel processor. The steps to erase a Mac with Apple silicon are different.
Before erasing your Mac
- Make a backup of any files that you want to keep. Erasing your Mac permanently deletes its files.
- If you want to restore your Mac to factory settings, such as to prepare it for a new owner, first learn what to do before you sell, give away, or trade in your Mac. Then erase your Mac as the final step.
Use Disk Utility to erase your Mac
- Start up from macOS Recovery: Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R.
- If asked, select a user you know the password for, then enter their administrator password.
- From the utilities window, select Disk Utility and click Continue.
- Select Macintosh HD in the sidebar of Disk Utility. Don't see Macintosh HD?
- Click the Erase button in the toolbar, then enter the requested details:
- Name: Macintosh HD
- Format: APFS or Mac OS Extended (Journaled), as recommended by Disk Utility
- Click Erase Volume Group. If you don't see this button, click Erase instead.
- If asked, enter your Apple ID. Forgot your Apple ID?
- After the erase is done, select any other internal volumes in the sidebar, then click the delete volume (–) button in the toolbar to delete that volume.
Disregard any internal volume named Macintosh HD or Macintosh HD - Data, as well as any volumes in the External and Disk Images sections of the sidebar. - Quit Disk Utility to return to the utilities window.
- If you want to start up again from the disk you erased, select Reinstall macOS in the utilities window, then click Continue and follow the onscreen instructions to reinstall macOS.
If you don’t see Macintosh HD in Disk Utility
Your built-in startup disk should be the first item listed in the Disk Utility sidebar. It's named Macintosh HD, unless you changed its name. If you don't see it there, choose Apple menu > Shut Down, then unplug all nonessential devices from your Mac and try again.
If your disk still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your Mac might need service. If you need help, please contact Apple Support.
Learn more
For more information about using Disk Utility, see the Disk Utility User Guide. Jumper (pepperoni_pizza55554) mac os. Star nomad mac os.
Each header is custom fit to the specific engine and includes applicable screws or strap.
Flexible connector and tie straps are not included.
9-2-2020
.10 size are 7/32' less ----- .20 size are 1/16' less .90-3.2 are 1/16' more ----- 3.0-up are 1/8' more | |
inch to mm Std. 1 5/8'= 41.27mm --- Long 2 3/8'= 60.325mm --- ex-long 3 1/8`'= 79.375mm |
Threads are in Engine |
Marine Headers are the same as standard Headers,
but angling up out of a boat at 15° / 'degrees' or use on a
high wing airplane to angle down under the wing at 15° / 'degrees'
Headcase Mac Os X
Engine(s) Fitted | Stock # | |||
---|---|---|---|---|
standard | long | ex-long | 15° marine | |
.10-.15 Engines ( 9/16'od Alum. tubing uses - 1/2'id Silicone tubing) PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to. | ||||
O.S. .10-.18 CV,FP,LA&FSR K&B .18 (bolt through) Magnum XLS.15 MDS .18 FS Pro Thunder Tiger GP .10-.15 (screws 4/40 x 1 1/4' fillister head) (center to center = 27.43mm/1.080') Super Tiger.18 Inboard Engine (the mounting of this motor hasn't been verified - any help would be appreciated) | 2041 | 2042 | 2043 | |
Super Tiger X.11 (bolt through) (screws 2-56 x 1 1/4') (center to center = 24.75mm/0.975') | 2060 | 2061 | ||
Custom .15 -.18 Marine ( screws -4/40 x 1 1/2' fillister head ) ( center to center = 27.43mm/1.080' ) for O.S. .18 CV RMX and other equivalent motors Wrap-to-center 25°up / 17° down header pipe (5/8'od tube) (this header puts the pipes right behind the motor, the carb. may need to be adjusted to allow this header to fit) | 2074 |
Engine(s) Fitted | Stock # | |||
---|---|---|---|---|
standard | long | ex-long | 15° marine | |
.20-.36 Engines ( 5/8'od Alum. tubing / uses - 1/2'id Silicone tubing) (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | ||||
ENYA X .19-.25 (bolt-on) (screws 3mm x 12mm socket head) (center to center = 24mm/.945') | 2210 | 2211 | 2212 | |
HB .20 .21 .25 Veco .19 Webra .28 Strap On | 2230 | 2231 | 2232 | 2233 |
HP .20 (bolt-on) (screws 3mm x 12mm socket head) (center to center = 28mm/1.102') | 2250 | |||
MVVS .20 (bolt-on) (screws 2.5mm x 12mm socket head) (center to center = 25mm/.984') | 2260 | 2261 | 2263 | |
Irvine .20 (bolt-on) (screws 4/40 x 1/2' socket head) (center to center = 25.40mm/1.000') | 2270 | 2272 | 2273 | |
O.S. .20-.25 FP & LA Magnum .21-.28 GP Thunder Tiger GP .25 Super Tiger G .34 (bolt through) (screws 5/40 x 1 1/4' socket head) (center to center = 32mm/1.260') | 2300 | 2301 | 2302 | 2303 |
O.P.S. 3.5 (.21) Norvel .25 BB (bolt-on) (screws 5/40 x 1/2' socket head) (center to center = 7mm/1.063') | 2310 | 2311 | 2312 | 2313 |
O.S. .21-.36 FS-SF-FX-SX-AX (for OS.20-.25 FP or LA see #2300) Enya .21CX, SS30, 35X-TN & 35XS Evolution .36 NT GMS 2000 ABC .25-.36 Jett .25-.35 Kyosho .32-.36 GT Magnum XLS.25 & .25-.28 Pro MDS .28-38 FS Pro NovaRossi Rex R.28 CR Thunder Tiger Pro .25-.36 Webra .25-.36 Speed (bolt through) (screws 5/40 x 1 1/4' socket head) (center to center = 35mm/1.380') | ||||
Super Tiger S .21-.34K (bolt-on) (screws 3mm x 12mm socket head) (center to center = 32mm/1.260') | 2360 | 2361 | 2362 | |
Super Tiger X.15-.25 (bolt through) (screws 2/56 x 1 1/4') (center to center = 30mm/1.181') | 2370 | 2372 | 2373 | |
Super Tiger S.21-.29 (bolt through) (screws 4/40 x 1 1/4' ) (center to center = 32mm/1.260') | 2380 | 2381 | 2382 | |
ENYA .29 -.45 TV (strap-on) | 2392 |
Engine(s) Fitted | Stock # | |||
---|---|---|---|---|
standard | long | ex-long | 15° marine | |
.35-.55 Engines ( 3/4'od Alum. tubing / uses - 5/8'id Silicone tubing) (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | ||||
Enya .40-.45 X & CX (bolt-on) O.P.S. .40 (screws 3.5mm x 12mm socket head) (center to center = 30mm/1.181') | 2420 | 2421 | 2422 | |
Enya .40 SS(bolt through) (screws 5/40 x 1 1/4' socket head) (center to center = 42.16mm/1.660') (can be used on a .40-.45 CX) (that has the bolt-through.95 holes) | ||||
Enya 40XZ-TN & 40XZS (see-#2650) | - | - | - | - |
Fox .40-.45 Schnuerle (bolt on) (screws 6-32 x 3/4 socket head) (center to center = 24.13mm/.95') | 2450 | 2451 | 2452 | 2453 |
MDS .40 FS (bolt on) (screws 4mm x 12mm socket head) (center to center = 31mm/1.220') | 2481 | 2482 | ||
Jett .40-.50 (not the 40L) H.B. .40 (bolt through) (screws 5/40 x 1 1/4' socket head) (center to center = 38.10mm/1.500') | ||||
MDS .46 FS (bolt through) (screws 5/40 x 1 1/2' socket head) (center to center = 42.5mm/1.673') | 2510 | 2512 | ||
K&B.40 (bolt through) (screws 5/40 x 1 1/4' socket head) (center to center = 31.75mm/1.250') | 2530 | 2532 | 2533 | |
K&B.45 Sportster &.48(bolt through) (screws 6/32 x 1 1/2' socket head) (center to center = 35.15mm/1.384') | 2540 | |||
MVVS .40 (bolt-on) (screws 3mm x 12mm socket head) (center to center = 28.60mm/1.126') | 2550 | 2551 | 2552 | 2553 |
Norvel AX .40 (see-#2800) | - | - | - | - |
O.S. .40-.45 FSR (bolt-on) ASP .40 Fox .45, & .50 BBRC Irvine .40 (bolt on) (screws 3.5mm x 12mm socket head) (center to center = 27.94mm/1.100') HP .40 (bolt-on) (screws 3mm x 12mm socket head) | ||||
O.S.40-.46 FX,SF (bolt through) O.S.46-.55 AX, .50 SX ASP.46 Evolution.40-.46 NT&.46NX,.52NX, .60NX & TrainerA & 10cc GX (gas) MACS Product Requires this header be segmented and the pipe be double mounted when used on the Evo.10cc GX (gas) motor or any gas motors. GMS 2000 ABS .40 & .47 Magnum XLS .46-.52 MDS .40-.48 FS Pro Mecoa .40-.46 NovaRossi Rex R.46/.57 CR Rossi .45-.53 (new-bolt through) Royal .46 Tower .46 (bolt through) Thunder Tiger Pro .40-.46 Y.S. .56 SR (bolt through) (screws 5/40 x 1 1/2' socket head) (center to center = 37.08mm/1.460') | ||||
Rossi .40,.45&.53 (bolt-on) Powerhouse .40-.45 (Won't fit the new Bolt-Through motors) (screws 3.5mm x 12mm socket head) (center to center = 31.75mm/1.250') | 2603 | |||
Picco .40 (bolt-on) (screws 3mm x 12mm socket head) (center to center = 27.69mm/1.090') | 2610 | 2611 | 2612 | 2613 |
Super Tiger GS .40-.45-.51 Como .40-.51 (bolt through) (screws 6/32 x 1 1/2' fillister head) (center to center = 38.61mm/1.520') | 2620 | 2621 | 2622 | 2623 |
Super Tiger S .40-.45 (K) Como .40-.45 (bolt-on) (screws 3.5mm x 12mm socket head) (center to center = 38.61mm/1.520') | 2630 | 2631 | 2632 | |
Webra.40-.55 Speed(bolt through) (screws 4/40 x 1 1/2' fillister head) (center to center = 39.12mm/1.540') | ||||
O.S. .40-.46 FP & LA (bolt through) Enya 40XZ-TN & 40XZS Evolution .40NX Jett .40L Magnum .40-.44GP ThunderTiger GP .42 & .46 Webra .40 RC (non-Speed) (screws 4/40 x 1 1/4' fillister head) (center to center = 35.05mm/1.380') | 2650 | 2651 | 2652 | |
Webra .40-.50 Speed (old strap) (This motors has no exhaust mounting system - the header press-fits over the exhaust and straps in place) | 2660 | 2661 | ||
YS .45 SF (bolt-on) (screws 3.5mm x 12mm socket head) (center to center = 31.19mm/1.228') (The new YS.56 SR is a bolt-through) (motor - use a #2590-2593 ) |
Headcase Mac Os Download
Engine(s) Fitted | Stock # | |||
---|---|---|---|---|
standard | long | ex-long | 15° marine | |
.50-.75 Engines ( 3/4'od Alum. tubing / uses - 5/8'id Silicone tubing) (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | ||||
Enya.45-.50SS & .50CX &.61CX TN & CXS PRO (bolt through) (screws 5/40 x 1 1/2' socket head) (center to center = 42.16mm/1.660') | 2710 | 2711 | 2712 | 2713 |
H.P. .61 Webra .61 Speed (old strap-on) (countersink 1.658'lx.433'hx.062'd) | 2732 | 2733 | ||
Fox .60 Eagle III (bolt-on) Irvine .61 (screws 6/32 x 1/2' socket head) (center to center = 34.80mm/1.370') | 2751 | 2752 | 2753 | |
K & B .61 , H.B. .61 Jett .60 L(not the .65, .67L or .76L) Webra .61 BH (bolt through) (screws 5/40 x 1 1/2' socket head-n/w) (center to center = 38.10mm/1.500') | 2770 | 2771 | 2772 | up and over 2774 |
K & B .65 Sportster (bolt through) (screws 6/32 x 1 1/2' socket head) (center to center = 38.10mm/1.500') | 2781 | 2782 | ||
Kraft .61 (bolt-on) RJLK .61 Y.S. .61 long (Norvel AX .40) (screws 3.5mm x 12mm socket head) (center to center = 32.21mm/1.268') 2804 down under 2806 down under long | 2803 | |||
Moki .60 (bolt-on) (screws 4mm x 12mm socket head) (center to center = 28.24mm/1.112') Exhaust window size 0.350'x0.790' (Moki.61 M7 see #2850-3) | 2810 | 2811 | 2812 | |
MDS .58 FS Pro (bolt through) (screws 5/40 x 1 1/4' socket head) (center to center = 42.06mm/1.656') | 2821 | 2822 | ||
MDS .61 -- call first | 2830 | 2831 | ||
O.S. .50 FSR & .61 FSR (bolt-on) ASP .61 Enya 60X MVVS .61-.77 Webra Speed .61-.70 F (bolt-on) (screws 4mm x 12mm socket head) (center to center = 33.91mm/1.335') (Moki.61 M7 looks like it will fit, being tested waiting for results) 2856 down under 2857 down under long | 2853 | |||
O.S. .61 FX & SF, .65 & .75 AX O.S. .60 FP & LA, .65 LA (bolt through) Evolution .61NT & .61NX (will not fit the .60NX or 10cc (gas) see #2590) GMS 2000 ABC .61 (not the .76 or the .61 ringed, the new ringed .61 is a bolt-on not a bolt-through see #2890 - #2893) Jett .67L & .76L (not the .60L or .65) Magnum XLS.61 & .61 Pro MDS .68-.78 FS Pro NovaRossi Rex R.60 CR Rossi .60-.65 (new) ThunderTiger GP & Pro .61 Webra .61-.75 P5-H (bolt through) (screws 8/32 x 1 3/4' fillister head) (center to center = 42.06mm/1.656') | 2860 | 2863 | ||
Rossi .61 & .61 Powerhouse .60 (bolt-on) (screws 4mm x 12mm socket head) (center to center = 36.12mm/1.422') (Won't fit the newer Bolt-Through motors) (Some of the older 3.5mm screw versions are still available.) Call | 2870 | 2871 | 2872 | 2873 |
Picco .60 (bolt-on) (screws 3mm x 12mm socket head) (center to center = 27.69mm/1.090') | 2880 | 2881 | 2882 | 2883 |
Tower .61 & .75 (bolt-on) GMS 2000 .61 ringed GMS 2000 .76A (screws 4mm x 12mm socket head) (center to center = 40.13mm/1.580') | 2890 | 2891 | 2892 | 2893 |
Super Tiger G .60, S .61-.75 Jett .65 (not the .60L, .67L or .76L) Como .61-.75 (bolt through) (screws 6/32 x 1 1/4' fillister head-n/w) (center to center = 47.12mm/1.855') | 2900 | 2901 | 2902 | 2903 |
??? | 2910 | 2911 | 2912 | |
Super Tiger S .61 K, .75 K (bolt-on) (screws 3.5mm x 12mm socket head) (center to center = 47.12mm/1.855') 2925 MAC HEADER CntrLin .60-.90 K | 2920 | 2921 | 2922 | 2923 |
Y.S. .60 (non long-stroke) (bolt-on) (screws 4mm x 12mm socket head) (center to center = 32.21mm/1.268') | 2930 | 2931 | 2932 | 2933 |
for tuned pipes for airplanes see Aero-Tuned Pipes
for tuned pipes for boats & helicopters see Marine & Helo-Tuned Pipes
Also see Special Application Headers
Camp (athegreat101) mac os.
for tuned pipes for boats & helicopters see Marine & Helo-Tuned Pipes
Also see Special Application Headers
Camp (athegreat101) mac os.
Engine(s) Fitted | Stock # | ||||
---|---|---|---|---|---|
standard | long | ex-long | 15° marine | ||
.90-1.20 Engines ( 7/8'od Alum. tubing / uses - 3/4'id Silicone tubing) (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | |||||
O.S. .90-1.08 FSR (old three bolt) (screws upper two 4mm x 12mm socket) (head-center to center=33.91mm/1.335') (lower one 3.5mm x 12mm socket head) | 2940 | 2941 | 2942 | 2943 | |
?? | 2951 | 2952 | |||
MVVS .91 - 1.08 ASP .90-1.08 Magnum .90-1.08 (bolt-on) (screws 4mm x 16mm socket head) (center to center = 33.91mm/1.335') | 2960 | 2961 | 2962 | n/a | |
Rossi .91 (bolt-on) (screws 3.5mm x 12mm socket head) (center to center = 40.13mm/1.580') (Won't fit the newer Bolt-Through motors) | 2965 | 2966 | 2967 | n/a | |
Super Tiger G 90 Jett .90-1.20 (bolt through) (screws 6/32 x 1 1/4' fillister head) (center to center = 47.12mm/1.855') | 2970 | 2971 | 2972 | 2973 | |
Super Tiger K 91 (bolt-on) (screws 3.5mm x 12mm socket head) (center to center = 47.14mm/1.856') | 2975 | 2976 | 2977 | n/a | |
O.S. 91 FX, SX& SZ .95 AX, GT 15 ASP .91 (bolt through) Evolution.91 NX, 15cc GX(gas) MACS Product Requires this header be segmented and the pipe be double mounted when used on the Evo.15cc GX (gas), GT 15 motors or any gas motor. Magnum .91 Pro NovaRossi Rex R.91 CR, ICARUS 91 S Webra .91 P5 & i (bolt through) (screws 8/32 x 1 3/4' fillister head) (center to center = 42.06mm/1.656') | 2980 | 2981 | 2982 | 2983 | |
Y.S. .90 &.91 SR, .91 ST (bolt-on) (screws 4mm x 16mm socket head) (center to center = 32.21mm/1.268') | 2985 | 2986 | 2987 | n/a | |
O.S. 120 AX (bolt through) (screws 8/32 x 1 3/4' fillister head) (center to center = 48.01mm/1.890') | 2990 | 2991 | 2992 | 2993 | |
1.2-1.5 Engines ( 7/8'od Alum. tubing / uses - 3/4'id Silicone tubing) (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | |||||
Irvine 120-150 (screws 4mm x 16mm socket head) (center to center = 44.70mm/1.760') | 4050 | 4051 | 4052 | n/a | |
ASP 120 Evolution 100 NT & 1.20 NX Magnum XL 120 (screws 4mm x 16mm socket head) (center to center = 43.37mm/1.668') | 4070 | 4071 | 4072 | 4073 | |
Super Tiger G 2300 (bolt through) (screws 8/32 x 2' fillister head) (center to center = 50.04mm/1.970') 4094 Wrap to Center, S.T.G. 2300 | 4090 | 4091 | 4092 | 4093 | |
Thunder Tiger 120 Pro (bolt through) (screws 8/32 x 2' fillister head) (center to center = 48.77mm/1.920') | 4100 | 4101 | 4102 | n/a | |
Webra 120 / Bully 1.2 PR GMS 2000 120 / Mark 135 MDS 148 / MVVS 215 UAV 120 (screws 4mm x 12mm socket head) (center to center = 40.39mm/1.590') | 4130 | 4131 | 4132 | n/a | |
Zenoah G-20,G-23,G-26 (screws 5mm x 16mm socket head) (center to center = 34.29mm/1.350') | 4150 | 4151 | 4152 | 4153 | |
Homelite 25cc (screws 10/24 x 5/8' socket head) (center to center = 38.35mm/1.510') | 4180 | 4181 | 4182 | 4183 | |
1.5-3.2 Engines ( 7/8'od Alum. tubing / uses - 3/4'id Silicone tubing) (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | |||||
D.L.E. 20 (in design-sub#2985-2987) OS 22 GT (The #2985-2987 will fit and work, But the exhaust port is larger) (screws 4mm x 12mm socket head) (center to center = 32.21mm/1.268') | 4200 | 4201 | 4202 | n/a | |
D.L.E. 30 O.S. 33 GT (screws 5mm x 16mm socket head) (center to center = 33.98mm/1.338') | 4210 | 4211 | 4212 | n/a | |
Evolution 26cc MVVS 1.6 (screws 4mm x 12mm socket head) (center to center = 35.94mm/1.415') | 4220 | 4221 | 4222 | n/a | |
Moki 1.5-1.8-2.1 Mark 1.5-1.8-2.1 (screws 4mm x 12mm socket head) (center to center = 34.08mm/1.342') | 4230 | 4231 | 4232 | n/a | |
Sachs Dolmar 2.0 Brison 2.4 (screws 5mm x 16mm socket head) (cntr-cntr=26.60x20.37mm/1.026x.802') 4276 MAC Flex Tube Straight Adpter, Giant Scale 7/8 | 4270 | 4271 | 4272 | n/a | |
Sachs Dolmar 2.6-3.2 ci Brison 3.2 (screws 5mm x 16mm socket head) (center to center = 35.31mm/1.390') | 4280 | 4281 | 4282 | n/a | |
Super Tiger S 2000,2500,3000,3250 (screws 4mm x 12mm socket head) (center to center = 44.25mm/1.742') | 4300 | 4301 | 4302 | n/a | |
O.S. 3500, 160 Super Tiger S 4500 (screws 5mm x 16mm socket head) (center to center = 44.00mm/1.732') | 4310 | 4311 | 4312 | n/a | |
Super Twin ??? | 4340 | 4342 | |||
3W 35cc & 70-80cc Twin (3W41i, 3W50i, 3W85i, 3W100i, 3W40, (screws 5mm x 16mm socket head) (center to center = 36.32mm/1.430') 3W 70B2-These are unverified ) | 4360 | 4361 | 4362 | n/a | |
ZDZ 40 (2.4) (screws 5mm x 16mm socket head) (center to center = 37.18mm/1.464') | 4380 | 4381 | 4382 | n/a | |
Zenoah 445 Twin, GT-80 & G74 (screws 5mm x 16mm socket head) (center to center = 38.35mm/1.510') | 4400 | 4401 | 4402 | n/a | |
Zenoah G-45 (screws 10x32 socket head+square nut) (center to center = 42.42mm/1.670') | 4420 | 4421 | 4422 | n/a | |
3.0-4.8 Engines ( 1'o.d. Alum. tubing ) (*flex connector not included - see our NEW 'Ultra-Pure Silicone Tubing') (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | |||||
Quadra 52cc (screws 5mm x 16mm socket head) (center to center = 38.35mm/1.510') | 4460 | 4461 | 4462 | N/A | |
Sachs Dolmar 3.7 - 4.2 Brison 4.2 - Fox 150 (screws 6mm x 16mm socket head) (center to center = 37.90mm/1.492') | 4480 | 4481 | 4482 | N/A | |
3W 35cc & 70-80cc Twin (screws 5mm x 16mm socket head) (center to center = 36.32mm/1.430') (3W41i, 3W50i, 3W85i, 3W100i, 3W40, 3W 70B2-These are unverified ) | 4510 | 4511 | 4512 | n/a | |
DL 50, DLE 50 O.S. 55 GT 3W 60cc & 120cc Twin B.D. 5.1 Twin, ZDZ 50 (screws 5mm x 16mm socket head) (center to center = 40.00mm/1.574') | 4520 | 4521 | 4522 | N/A | |
Webra 4.4 Bulli Celti Husky 4.2 A/3 (A*A*A) 4.4 - 8.8 JPX 8.4 - 8.8 (screws 6mm x 16mm socket head) (center to center = 40.28mm/1.586') (for the Mahle case) | 4540 | 4541 | 4542 | N/A | |
Zenoah Q G-62 (screws 10x32 socket head+square nut) (center to center = 42.42mm/1.670') | 4560 | 4561 | 4562 | N/A | |
4.5-up Engines ( 1' to 1 1/4'o.d. Alum. tubing )(We only use Aluminum tubing NO STEEL - we prefer our header to break, NOT YOUR MOTOR) (*flex connector not included) (+PLEASE Note! MACS headers are not designed to support the tuned pipe or in-line muffler that they connect to the motor they are attached to.) | |||||
DA 85s & 170twn (1' od tubing) (screws 5mm x 16mm socket head) (center to center = 41.88mm/1.648') | 4590 | 4591 | 4592 | N/A | |
DA 85s & 170twn (1 1/8' od tubing) (screws 5mm x 16mm socket head) (center to center = 41.88mm/1.648') | 4595 | 4596 | 4597 | N/A | |
Husky 6.0 Celty Husky 5.8 (screws 6mm x 16mm socket head) (center to center = 46.23mm/1.820') | 4620 | 4621 | 4622 | N/A | |
Quadra 200 Twin | 4640 | 4641 | |||
Sachs Dolmar 5.8 (1' od tubing) Fox 200 (screws 6mm x 16mm socket head) (cntr-cntr=40.28x5.64mm/1.586x.222') | 4660 | 4661 | 4662 | call-! | |
Sachs Dolmar 5.8 (1 1/8' od tubing) Fox 200 (screws 6mm x 16mm socket head) (cntr-cntr=40.28x5.64mm/1.586x.222') | 4665 | 4666 | 4667 | call-! | |
BME 58/116 Xtreme (1' od tubing) BME 50 Classic (screws 5mm x 16mm socket head) (cntr-cntr=24.73x19.10mm/.974x.752') | 4670 | 4671 | 4672 | N/A | |
BME 58/116 Xtreme (1 1/8' od tubing) BME 50 Classic (screws 5mm x 16mm socket head) (cntr-cntr=24.73x19.10mm/.974x.752') | 4675 | 4676 | 4677 | N/A |
or In-Line muffler that are connected to them.
They (the Tuned Pipe or In-Line Muffler) must be self- supported.
MACS Products will not replace or repair headers used in this manner.
! - This header is available in an Extra-Extra-Long - for info. contact us.
for tuned pipes for airplanes see Aero-Tuned Pipes
for tuned pipes for boats & helicopters see Marine Tuned Pipes