Join Date: Jan 2009
Thanked 64 Times in 60 Posts
My buddy ran a pro52 on his 99, with a drag comp, and mach 5's, and it did alright. However he switched to a sled puller 66 and felt it was an improvement. The big thing about those, is that they run a 4 9/16ths exhaust outlet (read spendy) that flange and clamp will run you about $170 plus anything else you need to fab the down pipe. Also, you will need to get an adapter from the stock t3 flange on the exhaust inlet. I'm not sure if the pro 52 is a T4 or T4i flange.
2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.
TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)