Ok so I ordered my magnaflow high flow cats and I cant wait to put them on but as of right now i have 2 flowmasters 40 series with the pipes dumped down should I jave my pipes reconnected or keep em dumped down? what sounds better?
Thanks

 

sorry also wanted to ask where can I sell my stock cats and how much should I expect to get for them and not get ripped off thanks

 

In my opinion, Tailpipes with tips project the sound better, and have a better tone.

 

^ agreed. Either that or leave the end of muffler open... NO TURN DOWNS!