It's a 3". Yep, I've got a 68mm new in the box, waiting to go to Hughes
Engines for their stage 1 port/polish, just haven't gotten around to it
yet.. ;-)
I'd also like to drop in a set of 4.7 HO cams, but very little free time
recently.
/Curt
> -----Original Message-----
> > I get lots of compliemnts on the sound of my gibson single
> stainless cat
> > back. It sounds nice, but isn't too loud to be bothersome on
> the freeway
> > at all.
> >
> > I still haven't found an intake after 3+ years that I'm happy
> enough with
> > to invest in... :)
> >
> > /Curt
> > Chelsea, MI
> > 00 QC 4.7
>
> Hey Curt, what size cat back did you use? 2.5" or 3" ? You
> know the '00
> 4.7L's used a 65 mm throttle body and the newer ones use 68 mm?
> Might be a
> little performance increase with the larger one once you find
> an intake you
> like.
>
> RayB
> http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
>
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