Small backfires when not pushing the gas, normal?!
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Joined: Sep 2012
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Small backfires when not pushing the gas, normal?!
I noticed it just yesterday (the car is new to me), and when driving at S mode, it't easy to notice that.
The car is 09 Z51 with magnaflow exhaust system.
When pushing the gas you dont hear a thing, but when you live it and the RPM drops then you hear some small backfires, same thing happens when you downshift gear in S mode.
Don't get me wrong, I love that sound!!! but it's normal? or it's a sign for problems.
I'm using regular fuel and I got a tune for it so it supposed to be OK.
The car is 09 Z51 with magnaflow exhaust system.
When pushing the gas you dont hear a thing, but when you live it and the RPM drops then you hear some small backfires, same thing happens when you downshift gear in S mode.
Don't get me wrong, I love that sound!!! but it's normal? or it's a sign for problems.
I'm using regular fuel and I got a tune for it so it supposed to be OK.
Melting Slicks
Joined: Apr 2009
Posts: 2,479
Likes: 36
What you are hearing is definitely not backfiring. The slight popping sound you hear when letting off the gas is normal. This is a little more pronounced with aftermarket exhausts because they are usually freeflowing and open (non baffled) in design. I like the sound myself. But, for people that don't, an aftermarket X-pipe usually gets rid of most of the popping on decel.
I, like you, also have a magnaflow catback and I used to have slight popping on decel. Unfortunately, once I installed the Corsa x-pipe, it pretty well disappeared. I used to love the popping between gears but I had to replace the stock H-pipe because of the infamous exhaust rattle that it produced.
PS: Make sure that all of your exhaust connections are tight. Any small exhaust leak will also accentuate the popping sound on decel.
I, like you, also have a magnaflow catback and I used to have slight popping on decel. Unfortunately, once I installed the Corsa x-pipe, it pretty well disappeared. I used to love the popping between gears but I had to replace the stock H-pipe because of the infamous exhaust rattle that it produced.
PS: Make sure that all of your exhaust connections are tight. Any small exhaust leak will also accentuate the popping sound on decel.
