Ever since i self-installed my test pipes, i have been hearing a sound somewhat similar to a brief nitrous purge sound from the engine compartment whenever i decelerate to low rpms. Is this normal?

 

z

 

sounds like you could have an exhaust leak.

 

hey there.

it is completely normal (although it sucks) with test pipes, or high flow cats. sometimes an aftermarket exhaust helps, but test pipes make that sound the worst. i get the sound as the rpm's are coming down through about the 2K range.

Chad

 

don't think so...i used air tools with a huge compressor.

 

thanx, chad. now i feel LOTS better getting input from an engine maestro such as yourself .
i actually don't mind the sound, knowing now that nothing is wrong or disconnected.
thanx again, homie.