Ok, I really want a dual exhaust setup for my car but I want to know what everyone else is using and the results they have had and if the setup I was thinking is possible or what kind of problems I might have.

Ok SLP 1 3/4" headers to 2.5" high flow cats to Borla Mufflers out to borla dual square angle cut intercooled tips.

Ok so let me know what you guys runa dn what you think of what I have planned, and wether it will work if it is will cause to many problems.

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1989 Trans Am GTA, 5.7L TPI, TH700-R4, T-Tops, dual cats, 9-bolt rear, 3.27, Dynomax muffler, K&N
1992 Camaro RS, 5.0L TBI, T-5, T-Tops, L69 Dual Snorkel, K&N - Sold

 

you can do it but it's all from scratch and possible problem with ground clearance. I did it with my firebird. I have a new tool now "a blue tipped wrench" on the other hand, about the largest pipe "down the shaft of the car can be about 3"dia. and spliting it at the rear. or do the easy way SIDE PIPES! now those are cool

 

I have Hooker Super Comp longtubes(which were a PITA to install) going straight into 3
" pipes to dual 1-chamber Flowmaster mufflers.Each muffler has about a 6" long tube welded to the end and turned down about 40*. The exhaust exits right in front of the rear axle. The pipes are straight back from the headers-no bends or turns.There is a slight indention on the top of each pipe where it goes under the tranny mount brace. Even snugged up against the floorpan,you still have to be careful due to the lack of clearance. With my car lowered about 1 3/4", I have about 3 3/4 to 4" of clearance from the bottom of the mufflers to the ground.
The only possible problem I see with your set-up is the mufflers. You will need to get the smallest possible. The 1-chamber Flowmasters would probably work the best. Man,this set-up sounds awesome.

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'91 RS 5.0 TBI
New paint-solid black
ROH Snyper wheels-17x9 wrapped in 275/40/17
Eibach sportline springs
ASCD SS hood, High-rise Z-28 spoiler,
Hooker super comp headers,dual 3" exhaust,two 1-chamber Flomasters,Iroc sway bars,wonderbar,140 Iroc gauge cluster,Iroc steering box,Auto meter gauges,dual guage A-piller pods,open air filter,AFPR,smog delete
TBI mods,180* thermostat,
383 stroker in the works

President-Austin 3rd Gen F-body c.c.
Austin 3rd Gen F-body c.c. message board at
www.hpsmotorsports.net
See my car and others at www.ride4life.net

 

I really don't know why every1 is so crazy for duals, if they don't have the kind of power that needs them also. Are they cool?? Yeah, but single exhaust works really good though.

I mean, I've heard some single exhaust setups that sound better than dual cars, and much better than any M*****g. Do I think our cars should have had them stock?? Probably, just to say, "yeah it has dual exhaust," but they are really not needed unless u are making some Really good power and running some Really good times, and single exhaust can do that just fine also. Its cool if u want to do it, its even cooler when there are posts of dudes getting it and it comes right with no BS, letting others know that it can be put on a Third Gen with good results. I just can't see why when single is a good setup for performance and sound too.

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89 RS

STILL Looking For:
An 87 IROC-Z28 350 TPI

 

Which 1-chambers did you use?

 

Summit has them for $59.95 ea. I have only seen one single chamber advertised for Flowmaster.Can't remember the model number though.I will look it up later tonight for you.

 

Just curious, Flowmaster makes a number of 1 chamber mufflers in a variety of sizes and configurations. I've got the same setup in mind but I'm probably going to mock everything up with PVC pipe and cardboard before I start welding.

 

Go for the dual exhaust setup . In my opninion there is no other way to go about it for a performance application.

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383 86 Camaro Z28
10.5:1compression Dart Pro 1 Aluminum heads 215cc>2.05/1.60 valves,400 steel crank,cam specs:224/234 at 050 525/525 lift,3500 stall converter,shift kit,3.42 gears,770 Holley Avenger,Victor Jr. Intake,true dual exh,Hooker headers with 40 series Flowmasters,MSD Coil and Module.ALSO SECOND GEN Z28---mods:454 BBC,.546 max lift(doug herbert cam ) 750 Holley vac sec. ,Edelbrock Performer manifold,Holley electric fuel pump,Hooker headers,Flowmaster mufflers,beefed up 700r4 tranny, 3.90 gears, powertrax unit, B&M console shifter.