Does anyone make a 4" cat-back exhaust for an 87 IROC

 

www.mufflex-performance.com

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85 calif. iroc
383/A4
9" rear

 

Geez, what do u have? A supped up 383? 4 inch exaust is a little to much.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

i agree with eric...4" exhaust is HUGE for our cars, unless you are running some serious cubic inches.

-brian

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1991 Camaro RS - Ultra Blue Metallic, T-Tops
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GM 350 HO Crate Engine - Vortec Heads, Edelbrock Intake, Holley 670 CFM TB, Edelbrock Water Pump, March Pulleys, MSD 6AL, Blaster Coil, 8.5mm Super Conductors, Cap and Rotor, Rapidfires, Hypertech Fan Switch & Chip, SLP 1 3/4" Stainless Headers, 3" Cat Back, Flowmaster 40 Series
700R4 - 2,400 Stall Converter, Vette Servo, Shift Kit, B&M Super Cooler
GM 10 Bolt -coming soon Auburn Pro Series Differential, Richmond 3.73s
Brian's 1991 RS Central NY F-Body Association
Join the Third Generation F-Body TBI Web Ring
z28boy@twcny.rr.com IM name: Z28 Boy

 

Yes, u should really only get a 4in. exhaust if u have like a heavily modded 383. If u have a 305 go with a 2 1/2in., if u have a 350 go with a 3in.

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

[This message has been edited by IROCZTWENTYGR8 (edited February 06, 2001).]

 

*cough* 3" with your 305 too. *cough*



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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

Yep I'll be running a 4 inch exhuast myself and i will be getting my stuff from MUFFLEX. You think 4 is too big naaaaaaaaa, not too big for my 388

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White 92 RS,388 cu.in.N/A
3.73 gears,auburn posi
Best 60 ft : 1.97
Best 1/4 : 12.679
all runs made on BFG Radials (NOT DRAG)
Complete Steve Spohn Rear Suspension
Full Custom Dash full of Autometer guages
Extremely Loud Stereo !
Driven Daily

 

Well i plan on dropping in a helthy 383 . . . so i thought a 4" would be bout right. . . and there is no since buying a 3" or 2 1/2" and turn around in 6 mo. and need to buy another system!

thanx

 

Thats what we were saying. If your gonna have a 383 or some sort of suppoed up big block then a 4" exaust system would be great. But for like a slightly modded 350 or modified 305, it wouldn't be good.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

 

Yeah

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.