Quote:
Originally Posted by Sal@Evolve
The tune will 100% make the Akrapovic quieter.
Changes in valve overlap and ignition timing have profound effects on exhaust noise.
On WOT also it will sound different to as you say and again this is predominantly changes to valve overlap and therefore valve opening and closing times.
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This is very interesting. Do you have any before/after sound clips, especially from inside the cabin?