Backfiring. Talk to me about it.

now you'll probably think you have flutter at low boost or even some vacuum levels but its just how the hks valve works since its a dual valve. i'll try and get some with the window down on the way home from work in 20min.
 
bova80 i like that sound a lot in the first video...the second one sounds like a lot of neon srt4's around my area with that turkey call...my valve sounds completely different...how did u get a good recording of that..what did you use...everytime i try to video it i get a lot of wind noise. also the exhaust sounds nice
 
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