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Super intresting exhaust

2002

2002

New member
I have a 2002 grand prix se with 3.1l. I staright piped it and it doesnt sound bad untill i let off the throttle and the exhaust popes and it sound like a back fire almost. what causes this?
 


A 3.1 straight piped causes it. :p:p:p:p

I'm gunna guess it's due to the fact that there isn't enough output in the engine to sustain the low back pressure of a straight pipe..


But i bet someone will correct me ;)
 
Well its straight piped with no resonator or mufflers. So you are going to hear the "back fires" and popping sounds as you let off the gas.

Install a resonator and most of the sound will go away.
 
Kolton Lock said:
A 3.1 straight piped causes it. :p:p:p:p

I'm gunna guess it's due to the fact that there isn't enough output in the engine to sustain the low back pressure of a straight pipe..


But i bet someone will correct me ;)
Click to expand...

your wrong.
buddies 3.8 backfires as well.
its lack of a resonator most likely.
 




A backfire is caused by un-burnt fuel...and with nothing in its path restricting it...yeahhhh.

Resonator will help it but might not fix it all.

You guys are dumb.
 
Ch-Ch-Ch-Cherry Bomb!!!

Corsa or Borla is best, magnaflow sounds good with a solid resonator.

Otherwise whatever doesn't break the bank, its a small V6, its not going to sounds threatening to anything but a scooter.
 


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