MAC exhaust system

Tony Frank · 12-10-2001, 01:28 AM

Ok heres the deal i have an 85 gt with complete mac exhaust, the longtube headers, prochamber, off to the mac flwopath muffs, now its not as loud as i wanted it, i herd that the macs flow better than flowmasters. but why is my system so quiet, if you look below that is my mods, i think its so quiet because of the pro chamber, and by the way i dont have cats.
so if anyone can tell me why its so quiet i would apprieate it very much

2FastLX · 12-10-2001, 10:03 AM

I have the same setup and mine is pretty loud.

Rick 91GT · 12-10-2001, 10:58 AM

I have the set-up with MAC long tubes 1-5/8" and a regular off road MAC H-pipe and the back section is the dumps. My dad has the whole system with the MAC hi-flow cats and it roars at WOT.

LX XLR8R · 12-10-2001, 11:18 AM

well what cam do you have..do you have a motorsport cam or a split duration(more exhaust) cam..if you have a split then it will be louder than a FMS cam..pro chambers as far as i knew did make the car a lil quiter but your compliaing that your car is too quiet..you ungrateful bastard

wish mine was more quiet

Tony Frank · 12-10-2001, 11:22 AM

its not that it too quiet actually just not as loud as i expected, i guess anything is gonna be quiet after drag racing my dads 82 with a 351 windsor pushing 450 hp, he has 3 inch all hte way back going through flowmasters (2 chamber) but its not all that bad i still love it

Tony Frank · 12-10-2001, 11:23 AM

BTW i have the ford motorsport E cam

12-10-2001, 01:28 AM	#1
Tony Frank Registered Member Join Date: Feb 2001 Location: Brooklyn originally, but Grand Rapids now Posts: 309	MAC exhaust system Ok heres the deal i have an 85 gt with complete mac exhaust, the longtube headers, prochamber, off to the mac flwopath muffs, now its not as loud as i wanted it, i herd that the macs flow better than flowmasters. but why is my system so quiet, if you look below that is my mods, i think its so quiet because of the pro chamber, and by the way i dont have cats. so if anyone can tell me why its so quiet i would apprieate it very much __________________ Grand Valley State University Senior Accounting and Finance Major 1985 Mustang GT 19,000 ORIGINAL miles, E-303 cam, edelbrock performer RPM intake, holley 600 cfm carb, MAC headers, windage tray, 8.8 rear end with 4.10 gears, 4"cowl hood, 5lug conversion, 04 Mach1 wheels. http://www.mustangworks.com/cgi-bin/moi-display.cgi?1501

12-10-2001, 10:03 AM	#2
2FastLX The Photoshop Guru Join Date: Feb 2001 Location: Mecca, Indiana Posts: 1,419	I have the same setup and mine is pretty loud. __________________ Project: 1988 Coupe - EFI 5.8L Twin Turbo with Victor intake, Canfield heads, F303 cam, March aluminum underdrive pulleys, TKO (or T56 if funds permit), PBR twin piston calipers and 13" rotors up front, 94 Cobra rear calipers and 12" rotors on the rear, 3.73's, Griggs K-member, tubular front control arms, torque arm and panhard bar, polished 99 Cobra wheels. "The GR-40 kit installation is now complete, and the humble Fox-chassis car will now out-corner and out-stop a ZR-1 or a Viper, and support massive horsepower additions with perfect balance." Griggs Racing ICQ# 42269241

12-10-2001, 10:58 AM	#3
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	I have the set-up with MAC long tubes 1-5/8" and a regular off road MAC H-pipe and the back section is the dumps. My dad has the whole system with the MAC hi-flow cats and it roars at WOT. __________________ *D/R 10108 NMRA Drag Radial, 25.5 chassis, F1R* *Check out RNH Performance Performance Engines and Custom Fabrication.* *From Mild to Wild we can build what you want, when you want it.* FOR SALE Stainless Steel Torque Box Supports

12-10-2001, 11:18 AM	#4
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	well what cam do you have..do you have a motorsport cam or a split duration(more exhaust) cam..if you have a split then it will be louder than a FMS cam..pro chambers as far as i knew did make the car a lil quiter but your compliaing that your car is too quiet..you ungrateful bastard wish mine was more quiet __________________ 95 undecided cubes, AFR 185s,undecided cam, undecided intake, and a 150 hit 89 "turbonotch" 2.3T You might want to hold on..i saw this on a cartoon once

12-10-2001, 11:22 AM	#5
Tony Frank Registered Member Join Date: Feb 2001 Location: Brooklyn originally, but Grand Rapids now Posts: 309	its not that it too quiet actually just not as loud as i expected, i guess anything is gonna be quiet after drag racing my dads 82 with a 351 windsor pushing 450 hp, he has 3 inch all hte way back going through flowmasters (2 chamber) but its not all that bad i still love it __________________ Grand Valley State University Senior Accounting and Finance Major 1985 Mustang GT 19,000 ORIGINAL miles, E-303 cam, edelbrock performer RPM intake, holley 600 cfm carb, MAC headers, windage tray, 8.8 rear end with 4.10 gears, 4"cowl hood, 5lug conversion, 04 Mach1 wheels. http://www.mustangworks.com/cgi-bin/moi-display.cgi?1501

12-10-2001, 11:23 AM	#6
Tony Frank Registered Member Join Date: Feb 2001 Location: Brooklyn originally, but Grand Rapids now Posts: 309	BTW i have the ford motorsport E cam __________________ Grand Valley State University Senior Accounting and Finance Major 1985 Mustang GT 19,000 ORIGINAL miles, E-303 cam, edelbrock performer RPM intake, holley 600 cfm carb, MAC headers, windage tray, 8.8 rear end with 4.10 gears, 4"cowl hood, 5lug conversion, 04 Mach1 wheels. http://www.mustangworks.com/cgi-bin/moi-display.cgi?1501

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