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Exhaust....how to upgrade?

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Old Feb 1, 2009 | 08:27 PM
  #1  
kcallais's Avatar
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From: Tyndall AFB, FL
Car: 1985 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: garbage 2.73
Exhaust....how to upgrade?

Was looking at possibly getting a new catback, but funds are a little limited after having to replace coil/battery/misc wiring/distr. etc etc. Was wondering.....will i really notice a difference performance/sound going from the stock 2.5 crush bend (with performance muffler) to a 3 inch or 2.5 inch mandrel bend cat back? If the difference isnt much noticeable between the 2 choices, i may just stick with stock piping and get a new muffler. Also, is the dynomax catback any good? Makes me sad I can only find it in 2.5 seeing as how my slp y pipe is 3 inch.....
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Old Feb 1, 2009 | 09:02 PM
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//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Exhaust....how to upgrade?

whatever you go with, get a 3" kit. Dont bother with anything smaller.
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Old Feb 1, 2009 | 11:35 PM
  #3  
Kevin91Z's Avatar
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: Exhaust....how to upgrade?

Yes you'll notice a difference going from a 2.5" cat-back to a 3" cat-back. Dont get anything smaller than 3", as said above.

But dont make yourself broke getting one. Food and rent are more important.
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