99 GTP back fires

If I punch the gas my car back fires

99 GTP Borla cat back exhaust with high flow catalytic

any suggestion would be appreciated

thanks

Reply to
MB
Loading thread data ...

How many miles on car? Spark Plugs or Wires need to be replaced? How about boost pressure? Does it max out? Injectors working properly? Fuel filter clogged? Lots of causes for backfire.

Reply to
Jeff & Carol
55000 miles boost is ok
Reply to
Techy

any type of exhaust will do that. I have a 2002 that does the same thing....its because the back pressure is different

Reply to
Nascar24Rulz

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.