??
 

Should my old downpipes. "Cat delete" from the 350 fit on my new 370?

"??" That is not a way to get interest on your thread. it will fit if they are off an hr motor.

The HR motor came in what years, thanks for replying for me I posted from a smartone from work I should have waited till I got home.,my 350 was purchased preowned w no warrenty my new 1 I brought brand new will they give me a hard time on my warrenty coverage after this aftermarket upgrade

To make my next ? Easier to anwser what year was the HR" produced in the 350

2007-2009

From the pics I see thay look the same.