would using a glasspack as a resonator and then adding a muffler at the end of my exhaust be like running 2 mufflers ? i mean they are both straight through so the backpressure shouldnt be that bad right ? oh also forgot to mention also removed the cat. what do you guys think ?

 

if you're trying to quiet the exhaust use the longest resonater you can fit. i had a loud *** thermal exhaust and used one small resonater as a test pipe and another before the muffler on the b-pipe