DesireL1027

I got those and will have it install tomorrow. Should I get the ATLP HJ pipe too? How will the j pipe helps in term of sounds and hp gain?

05BlkTL

The J-pipe will maximize your gains from jpipe-race pipe-cat back. The exuaust will be able to breathe fully, meaning no restriction from different sized pipes. IIRC, the jpipe didn't add much sound if any but HP & TQ rise. This will shift the powerband up a little more toward the top end. I dont' remember the #'s exactly but i think ATLP recorded around 20-22 whp with jpipe and cat back. Check www.acuratlparts.com I think you can still click on the exhaust and read the writeup on it and it has all the #'s they got when they dyno'd.

bigmoetl1

j-pipe will free up some horsed and go good with the mods you have. i recommend you dyno the car yourself to check the gains