Dynomax evoulution exhaust problem!!

jkoffroad247

New member
Just installed dynomax evolution dumps before rear axel. Having a problem that once the engine is warm. From a take off under hard acceleration the exhaust is popping and sputtering for about 5-10 secs and then will go away. Tried resetting the computer and everything. This issue won't happen with stock exhaust!
 

jkoffroad247

New member
Yea but mine it actually affects the performance feels almost like it pauses for a sec and then takes off. With stock exhaust on never had this issues. I contacted dynomax they said could be a packing issues inside the exhaust so their going to swap it out with another one.
 

Hobolobo

New member
Not sure if its the same problem, but my old silverado with dumped exhaust did the same thing after hard acceleration when i let off the gas. Its called racking out and its basically a lack of back pressure causing some air pockets in the muffler chambers and is normal. Sorry if i misunderstood the post. But i'm glad they're sending you a new one.
 
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