How would true dual exhuast sound on a 2.8?

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'88 2.8 V6 Sport Coupe
Navy Blue w/ light Grey GFX
'shorty' Rear Wing



cybergarage.cjb.net
stuart69427@aol.com

 

$hity.
Honest.
Don't do this, unless you wail the engine to 6,000 rpm all the time.
Lots of great exhaust suggestions here.
Mine is to replace your "Y" pipe with one from Edelbrock, for their HiPo V-8 systems.
Get a CC from Don's Hot Rod (800-888-8892 a PFP 2 1/2" in & out), mate that to your current intermediate pipe (or go get a V-8 one from the yard, that pipe is 1/2" bigger!), install a muffler to your tone & performance liking. For more power, port & polish your exhaust manifolds. You'll gain about 20 solid HP thru out the entire RPM range.
UNFORTUATLY (real bummer, too!) headers are not EPA legal or I'd have some on mine, too.

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Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

Karl is right ! Our cars also need backpressure .There are not to many cars out there that do benefit from true duals . I dont even thing mustangs do .You have to have a really big engine like a 502 or something , to benefit .Thats when you have enough exhaust to use true duals .

Wayne

 

I heard true duals 2.5 into 40 series flowmasters on an s10 blazer and it sounded great. But of course a blazer has more room to run pipes under it so there wasent any issues, almost. IMO as a person that has duals on my camaro V8, its not worth your time on a six. Its a pain to install on a 3rd gen and with a little 2.8 it probably wouldent give you any performance increase.
SSC

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85 Camaro, 355/400 "drag car" current DD 13.1@ 101mph on its last season run.
Plans: Possibly add N20 for next season.
82 Firebird, 355/350, as soon as the powertrax gets installed. "dyno time"