I dynoed my tahoe at a car show a month ago on a mobile dyno that only told hp and no tq. It was only 35 dollars so why not. I dynoed right at 300rwhp with only the stuff I have listed in my sig. They said it shocked them that I got that type of power and so was I because I was shootin for 270 with my 5.3. So does that sound right because right before I ran a 03 Z06 with full exsaust and headers only put down 335. Im gonna finish my exsaust and a few tiny things and im hittin up a real dyno to see the truth.

 

Sounds a bit high to me.

 

I dyno'd 304hp with intake, cat-back and really good tuning from my L33. After you finish your exhaust and re-dyno post up the results here.

 

I dynoed 268 with only intake and cat back, it might be that you got a really good tune from PCM 4 less.