Is it possible for me too run dual exhuast on my 87 firebird formula. All the exhuast places around me said that its impossible and I'd have to runone pipe and then make into 2 at the end because of clearance. Is that true or can I run dual straight back?

 

Its possible but not a very good idea. Its a lot of work, low ground clearance, HP gains are minimal, its not legal all over.... check out my dual exaust page for pics. Most aren't done well at all and would be schooled by a good 3" system.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

Yes u can do it!!

 

i know i guy that ran true dual side exit on his 82 camaro, he has problems with speed bumps, but its sounds bad *** , just avoid speed blump,and drive slowing around town, so you don't bottom it out, it will work, later.

------------------[*]191(3.1)V6 1992 Pontiac Firebird[*]K&N fiter with custom Ram air[*]Flowmaster Exhaust w/ 3" tips[*]180* Thermostat[*]Pioneer reciver[*]kenwood 4x6's[*]sony xplod 6x9's[*]1 kenwood 12" powered by a 300 watt jenson amp[*]-----------[*]Best 1/4 ET as of Now[*]17.7110 @76.01www.geocities.com/my_92firebird

 

A true dual exhaust is the way to go. I installed one on my 86 Camaro and the improvement was awesome! My 383 needed to breath alot easier. I will tell you this much , a well set up daul exhaust is way better than any single exhaust you may run(powerwise). When I tried my dual exhaust for the first time I felt a dramatic increase in power. Those manifolds were choking the power out of my 383.

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Big 454 72 Chevy Nova
383 86 Camaro Z28
10.5:1compression 186 casting Heads,234dur.488lift exh&int,Edelbrock performer intake, Holley750 vac.sec 400 crank,flat top pistons,edelbrock valve springs and lifters,tranny shift kit,2500 stall converter. Will install 3.73's later on and might go with a more aggresive cam.As of 4/01 added Hooker Headers,2.5inchpipes with 40 s. Flowmasters.Ignition upgrade include: MSD Coil and MSD module.

 

Make sure your car is up to it. I swapped to a true duel on my 73 camaro and proceeded to loose two cyl. It did sound nice... until I blew the engine. Old engine, new exhaust, be careful.