Yet another oil pump failure. 2010 ls3 with 15.5k miles.

Originally Posted by Greenhornet2

Well If you have already tuned out for the cat I wouldn't waste money on high flow cats, yours are already "high flow" now. Longtube headers yes good gain there. Ported throttle body won't do anything for HP just be a little more responsive but that can also be done with a good tune. I personally wouldn't mess with the throttle body they are known to be finicky.

Thanks for the feedback...much appreciated. I currently have the npp exhaust, CAI and hurst short throw shifter. Love my car...just feels slow now.

I haven't tuned out the cats yet...I just got the DIABLO standard tune for my car which is making a difference. The CEL comes on rarely now behind the O2 sensors...where it came on every day before. I am working on having Diablo write a tune to remove the cats...then do I leave the dummy sensors on..don't I. What else do I ask for in a tune....I honestly don't know??

I want to be about 550-600 HP...more responsive throttle in 2nd and 3rd at mid level rpms. I have never been on a drag nor raced my car. I used to drive 40 miles one way every day....now its less then one and no real place to open her up except on my days off and if there's a drive to be had. I love being able to pass and carve mountain roads....ha thats just funny given i live in SD now....sigh

Live in a brand new (to me) small town and people just want to sell...not teach.

[Greenhornet2]

I'll PM you don't want to hijack this thread