Hey guys whats up, thanks for all the previous help.

Check it out, ever since when I bought my firebird(91 305 TBI) it came with some cheap muffler, probably stock and it was like the exhaust of a V6, u know just one exit instead of two. I wanted to get rid of that so I bought a flowmaster 2 chambers, I didnt have enough money for the one that goes with these cars u know, the bigger one with dual exhaust.
so Im still runnin with that one and it runs good and all and it makes a decent sound , but am I chokin the engine too much or what?

Thanks

--oh yeah, one more thing can I install 3inch pipe with the one muffler I have right now????

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speedbox
91 red firebird(305 TBI)
"born 2 race wild"

 

no, actually u probably flow better than the 3 chamber two exit models. I just personally dont like the single pipe look

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89' Firebird Formula WS6 L98,AFPR, MSD 6AL, MSD Blaster, Hypertech chip, K/N filter cone(no air cleaner box),flowmaster 80 series, hypertech air foil, modified MAF, ported plemum, koni shocks, edelbrock trailing arms, EdelBrock Panhard bar, subfame conectors, March Pulleys, Jet fan switch,Throttle body bypass, BFG drag radials, Edelbrock strut tower brace, 3.27 posi rear, B&M deep tranny pan, B&M Shift kit...

 

Hey SPEEDBOX,

The setup you have is similar to the one that came stock on the '96-97 SS Camaro's built by SLP. Thats why if you see an SS with stock exhaust and only 1 tailpipe, thats why. I dont think SLP would have went with this setup if it was not beneficial for performance. From what ive head the regular flowmaster mufflers are "supposed" to flow better than the ones designed for '82-92 F-body's. Just my 2 cents on the subject.

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Poor college student(donations welcome ;0) with an all stock 1988 5.7L IROC-Z Hardtop, Auto. trans, white ext. w/gold accents (soon to be silver), black custom cloth interior, 4-wheel discs and G92 pkg. Car is dead stock. Has only standard Z28 power options and all the IROC performance stuff you could get. No pwr. seats, mirrors, or rear defrost.

Best run: 1/4 14.90 @ 92.7 MPH

See My Car here: http://zap.to/chevyguy1969

#3 Gone but shall never be forgotten. Long live the legacy of the man in black. RIP Dale Earnhardt "The Intimidator"

 

WOW!! 89Formula beat me to it! Sounds like we are all on the same page with this one.

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Poor college student(donations welcome ;0) with an all stock 1988 5.7L IROC-Z Hardtop, Auto. trans, white ext. w/gold accents (soon to be silver), black custom cloth interior, 4-wheel discs and G92 pkg. Car is dead stock. Has only standard Z28 power options and all the IROC performance stuff you could get. No pwr. seats, mirrors, or rear defrost.

Best run: 1/4 14.90 @ 92.7 MPH

See My Car here: http://zap.to/chevyguy1969

#3 Gone but shall never be forgotten. Long live the legacy of the man in black. RIP Dale Earnhardt "The Intimidator"