I just purchased a iac restrictor plate off ebay and was wondering those who have this mod installed if it will affect the tone of your exhaust ?? I heard it can make your exhaust "pop" or burbly. Any feedback is great, thanks.

 

No it shouldn't unless you're engine is leaning out at idle.Lean mixtures are what causes the backfiring,popping,or burbling while coasting down in low gear.I've used this as a guideline when tuning my bikes for years.

 

what is the reson for putting a restrictor plate on?