I was scopping around for a cat back wat they told me is that they dont make a 3in for a turbo it only come 2 1/2in. Wat i want to know is who all up in here is running 3in piping. wat kind and were. I just went ahead and order a hks hiper any body up in here is running one and how is it.

I think the majority of the turbo catbacks out in the market are larger than 2.5" (with the exception of Pacesetter. If you want 3", try Busher, Apex-i, Thermal R&D.

-K-

I'm turboed and I use Thermal R&D's 3". Has a deep note to it and gets the job done.

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HAD: '98 Eclipse RS

HAVE: '04 Grand Prix GTP Comp G