Is anyone running a setup like mine (see signature) with the stock Holset HX40. I would like more umph on the highway at 80-85 mph. I've read alot on the modified versions, just wondering if those running an unmodified - would kill my low end?

 

It will be slower to spool up than the Piers version that's for sure. My biggest concern would be that the stock HX40 as a history of blowing up on our bombed trucks. FWIW

Glenn

 

I have one no issues just slow spool up.

 

If you can get ahold of a stock HX40 and get the proper waste gate setup, have Piers rebuild it!<br><br>--Justin

 

Going with the Piers HX40!!!! 8)