I'm getting a 89 Camaro tommorow (hopefully). It has a 305 tbi and I want to get a flowmaster exhaust system. In the future I will most likely be putting a 350 tpi in, will the catback system fit on the tpi?

Chris

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3rd Generation Camaros

 

There enterchangable so get the one for the tpi to start with and you will be ahead of the game.

 

Whats the difference between the TBI cat back and TPI one? Sizes?

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3rd Generation Camaros

 

Size is the difference. Unless they're talking about the dual cat that came on some.

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, Jon (91 RS too many mods to list), getting new engine in summer

 

When ordering an aftermarket catback they always list the (305,2.8,3.1) all together, and then they have the 305 HO engines together, the reason is that the HO engines which include the TPI's have a different bolt pattern for the catalyic converter.

If you buy a system for TPI it won't bolt to your TBI catalytic conveter! You will have get the Intermediate pipe modified to fit it. I bought the one for a TBI(L03) engine because I didn't want to buy something that cost that much just to have it cut up and welded on brand new.

At least for Hooker Catback systems they are all the same size except for when the pipe gets to the cat, then it will be different to fit the different cats. TPI or HO cats have 4 bolts, others have 2.

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1989 Pontiac Firebird Formula LO3 Auto
-180 degree stat
-Hooker Cat-Back
*****Possible summer '01 mods*****
Open Element, Auburn Posi, Keyless Entry, wonder Bar off the IROC, 4th gen seats, T/A tail lights

1985 Camaro IROC-Z LB9 Auto
http://www.geocities.com/krt80/

[This message has been edited by Keith5 (edited February 10, 2001).]

 

Thanks. I'll wait until I get the tpi in to get the exhaust system.

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3rd Generation Camaros

 

If you wait til then you can upgrade the whole system all at once and match the parts up then, headers, cat(if you keep one), and catback.