dragnaz Posted December 20, 2018 Report Share Posted December 20, 2018 Any updates on this? I am having a similar issue with mine. What size exhaust are you running? I've been told that too big of an exhaust will cause backfiring or a popping noise through the exhaust due to a lack of back pressure. Mine has a hooker header to 2.5 tube with at straight through magnaflow. Quote Link to comment
datzenmike Posted December 20, 2018 Report Share Posted December 20, 2018 Last post 8 months ago. Last visit Sept 10. He goooan. I assume the exhaust? Loud rumbling on deceleration? or explosive bangs? All cars will make a rumbling sound on deceleration but removing the muffler and putting a straight through on will make something normal, suddenly LOUDER. Restriction as in pipes and muffler is what quiets the exhaust. Try a turbo muffler. Quote Link to comment
dragnaz Posted December 21, 2018 Report Share Posted December 21, 2018 Yeah, I'm thinking about dropping down to 2" off the header with a different muffler. It is too damn loud as it is. What I have was more for just the initial fire up and break in just to get her up and running. Next thing to do is either find a Z20 dizzy or find someone to recurve my Z24 dizzy. Quote Link to comment
datzenmike Posted December 21, 2018 Report Share Posted December 21, 2018 Just change the muffler the pipe is fine. Quote Link to comment
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