I am having a problem in third gear, when the car hits 6000 rpm it stutters and makes a loud popping noise that does not sound like a backfire. The car is fine all the way to redline in first and second. This only started after i had a new clutch and flywheel put in, i do not know if the two things are related but just trying give all the information i can. I have no idea what could be causing this so any help would be greatly appreciated.

 

could be multiple things. i dont think its ur clutch and flywheel though.

could be spark, fuel, even a boost leak.

 

Check the gap on your plugs first. Had a similar problem awhile back and my plugs weren't gapped correctly.

 

alright ill try that. Thanks for the help.