I short one on a mod I did with the exhaust,, It helps eliminate the work of the rear baffle (two in these pipes ) and gives a deeper growl and louder, but not overly louder,, It is easy to do, takes 5 mins,,, you wont regret it,,, If you want real noise then replace the pipe, but thats at a cost, plus the backfiring has to be eliminated etc,, costly... My way is easy and sounds great,, enough to make you noticed but wont piss the neighbors off,,,
