My v6 has always ran pretty strong, until I made some upgrades. My v6 used to be able to do a small burn out, but not since the upgrades. A couple months ago I decided to scrap my stock muffler and install a cherrybomb, I thought removing the restrictive muffler would help but it didn't the car did not pick up as quick, but sounded a little better. then I decided to experiment with an exhaust cutout. after installation I didn't feel a real change in power but the car was even louder. I leave the cutout open most of the time now to **** off my neighbors and only close it when I see a cop. then I bought an slp cold air intake with a k&n thinking this would help greatly but I still didn't feel a difference. with all these upgrades, I feel like my car is running slower than ever. now when I try to burn out my car lags at 1500 rpm then starts moving, this lag is very frustrating. what is my cars problem? is there an easy fix (don't say get a v8)? I tried going back to stock with everything but it still runs the same way.

 

Sounds like you need a tuneup, and perhaps check your timing - chain could be stretching!

Also, take your car to the track. You can't always go by the butt-o-meter.

 

Raise your timing up a few degree's.

 

I'd be willing to bet that you lost torque "butt-o-meter" so you don't feel fast...but all out, I think your top end is probably higher

 

Opening up the exhaust, lowering the backpressure can sometimes take down your low end torque. The CAI should of helped with the low end. But do the tune ups, you will get it back.