hey ive bin having this prob for a while i got a down pipe and test pipe and the car has bin jerking at 5000rpm and exhaust pops any 1 have any ideas

 

your probably hitting fuel cut

 

that is fuel cut.. need to raise the fuel cut table.. you may ask yourself why? and ill reply........ because you now have a better flowing exhaust system which is causing the car to run more efficient with less backpressure and allowing the turbo to spool better.

 

+1, Fuel cut, go get tuned/retuned

 

throw on a boost controller and some other stuff and make the tune worth it before you do it.

 

k than i guess its fuel cut thnks guys and thnks for the heads up on adding stuff to make the tune worth it