3in catback, 2.5in muffler, bottlenecking discussion - FirebirdV6.com/CamaroV6.com Message Board

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3in catback, 2.5in muffler, bottlenecking discussion

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  • 3in catback, 2.5in muffler, bottlenecking discussion

    Ok so I want a 3in catback, but I have 2.5muffler setups in my garage I want to use cuz I dont' have to much money. I kinda want to be prepared though incase i don't like 2.5in catback. And I kinda do want 3in for performance and sound. I always here talk of bottlenecking. Has anyone did 3in all the way back to a 2.5in muffler. To an extent isn't the cat to the 2.25in stock spipe bottle necking? I don't think you can do it at a better place then the muffler right? The exhaust gasses are going to expand there anyway. What do you guys think?

  • #2
    http://www.camarov6.com/cgi-bin/ulti...&f=25&t=003940

    read it..

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    • #3
      I have the same setup and it works just fine. It didn't hurt performance at all.
      <b>99 Camaro Z28 A4</b><br />R.I.P. 00 Firebird 3.8<br />14.89 @ 90, 2.03 60\'

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