Originally Posted by Munit
M-performance is "race-proven"? That is your criteria I think m-performance should be off the list.
If you want zero drone the best option is absolutely stock rear muffler with HFC's xpipe. Get a great sound with zero drone
If you want loud, get hfc xpipe with E race.
hmmmm...I said "race proven" was a variable I was considering, of course some of them are not. The "list" is everything I wanted to analyze with those considerations in mind.