? for you exhaust experts!

I've pretty much decided on a MAC exhaust system. I have a few questions, knowing I'll be adding a blower next year: long tubes or short tubes, and why? And, off-road or cat-back, and why? Will I FEEL either of these mods? Thanks for your input!

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'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys; Edelbrock Performer Heads;
BBK shorties; MSD 6AL ignition system; Motorsport E303 cam; 75 MAF; 70 TB; Eibach spring kit;
Southside sub-connectors; K&N cone filter charger; Hurst shifter; fiberglass cowl hood; A/C-less;
rear seat-less; cat-less; Flomasters; Corbeau racing seats (fronts); 12.513 @ 108 mph

[dinomite]

Long tubes produce a little more torque down low *down low shimmy*. Do you have emmissions testing in your state (sniffer)? If you have stock exh. now, you should feel it!

No emmissions in my county. So would you use off-road in that case? Would that give me any extra hp over a cat-back system?

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'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys; Edelbrock Performer Heads;
BBK shorties; MSD 6AL ignition system; Motorsport E303 cam; 75 MAF; 70 TB; Eibach spring kit;
Southside sub-connectors; K&N cone filter charger; Hurst shifter; fiberglass cowl hood; A/C-less;
rear seat-less; cat-less; Flomasters; Corbeau racing seats (fronts); 12.513 @ 108 mph

[93CobraR]

Get the long tubes, and the off-road. Sounds alot better and alot more free flowing and cheaper. I love mine!

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87 GT, 4 inch cowl hood,17x9 Cobra R's/255/45's,GT-40 heads,long tubes headers,h-pipe,Flows,BBK cold air, Mass air,70mm MAF, 1.7's, 1" spacer,underdrive pulleys,Pro 5.0, King Cobra, Adj. fuel Reg., Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 12.96
Best MPH 103.42
Best 60' 1.695

Visit my site at:
http://www.geocities.com/cobrar93_2000/MyPage.html

[xspeed02]

Doesn't Hamilton County have e-check CobraR?

[DemonGT]

i have all Mac exhaust..get the long tubes if your adding a blower..the long tubes are harder to install but will pay off in the long run..and if you dont have emissions go with the off road H pipe..and the Mac cat back system...sounds awsome

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'91 GT,91K,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,Mac long tubes,Cat-back,off road H,FMS 9mm wires

Future Mods:3.73's,Pro 5.0,Shifter knob,E303 cam,cobra intake,76mm MAF,70mm tb
ICQ#35670781

[IMPULSERACING]

If you go with full length (which you should) consider BBK's they are a lot easier to install. You should also go with an off-road x-pipe and I'd say a Mac pro-dump cat back. This combo will have a great sound and make awesome power. Hope this helps!

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92' LX Hatch 5 spd Edelbrock Performer Intake, pro-m 75mm MAF, 70mm T.B., 24lb injectors, 190lph, Mac fenderwall cold air induction, mallary ignition and coil, Cobra 1.7 rockers, 373:1 gear, upper and lower control arms, supersubs, 50/50's, front drag springs, no sway bar, battery in hatch, compucar N20 kit

[LX XLR8R]

i wouldnt lie to you when i say my car sounds insane at WOT..like nothing you ever heard b4..i got long tubes, off road hpipe, and catback all by MAC

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..
AIM=onesillynotch

Thanks guys.......that's kinda what I was thinking, just wanted to kick around the idea before making a mistake!

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'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys; Edelbrock Performer Heads;
BBK shorties; MSD 6AL ignition system; Motorsport E303 cam; 75 MAF; 70 TB; Eibach spring kit;
Southside sub-connectors; K&N cone filter charger; Hurst shifter; fiberglass cowl hood; A/C-less;
rear seat-less; cat-less; Flomasters; Corbeau racing seats (fronts); 12.513 @ 108 mph

[JamGtStang]

man dont get me wrong but the mac cat back sounds like s#$% my friend has it on his 2001 and everybody is always making fun of him

[xspeed02]

Theres a world of difference between what exhaust systems sound like on 5.0's and our modular brothers. It might sounds horrible on your buddys 01GT but might sound wicked on a 5.0 and vice versa. Only way the find out is to test it.

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Team Xspeed Leader/Co-Founder
1990 Black Mustang GT 5spd
Current Mods: 2 1/2 Offroad H-Pipe, Borla Cat-Back Exhaust, 91-93 5 Star Pony Wheels, K&N Filter, Free Mods, Pioneer Headunit, MB Quartz Speakers, Orion Xtreme 300 Amp, 2 JL Audio W0's, 130 Amp Alternator, 3.73's
Future Mods: Engine rebuild with Trickflow Heads, GT-40 Intake, Custom Ground Cam, and 14lb ATI Procharger!
AIM=xspeed02

[93CobraR]

Originally posted by xspeed02:
Doesn't Hamilton County have e-check CobraR?

Yeah, but I have dealer plates on my car and don't have to have E-check. Thats the nice thing about having them. It will pass anyway if I unplug a injector.

[xspeed02]

Yeah, but I have dealer plates on my car and don't have to have E-check.

Lol, how did you manage that? Parent's own a dealership?

[93CobraR]

My dad used too. We still have the plates on every car we have thoughh.