I have a '92 Camaro with a single cat then into dual exhaust after the muffler. What is the size of the exhaust before the cat and after the exhaust manifold's?

2.25" . They gave us V6 exaust to make our HP lower than the 305 TPI and 350 TPI

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

How big? Not big enough.

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91 Camaro RS - Black with red tweed - t-tops - 700 watt sound system - 14x3 open element - 80 Series Flowmaster - muffler turndowns - Poly transmission mount - Future 12 second street car

88 TransAm GTA - WS6 - red with grey cloth - K&N Filters - TPIS Airfoil - Wonder Bar - Future Restoration

Yup sadly GM gave us a small *** little pipe. For a 4 cylinder or V6. 2.25" isnt that bad. But for a V8. Atleast 3" is needed. Soon I'm going to have a full straight pipe 3" and a turbo N1 at teh end.

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Chris
91 RS 305 TBI
Eternal Rev

For the record, you have "dual tailpipes", not "dual exhaust".

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
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