W211 e55 exhaust question
 

Watsup guys i just purchased a 3inch magnaflow x pipe for my. Car and I was wondering if I am doing this the right way to get the best sound/power and eliminate as much drone as possible. So as of now my only exhaust mod is mid length headers removing the primarycats. I bought the 3 inch magnaflow x pipe and was planning to place it where my 2nd cats are and then delete my resonator with 3 inch piping. Someone told me now I should have gone with 2.5 inch x pipe. WHat is your guys opinion? I want power and sound hopefully the snaps and crackles as well, I do plan to get c63 mufflers as well.
tjank you

I would be worry to do smog test in California. Your car will be loud and the smog shop will do visual inspection. Good luck man !

haha I’m not to worried about that bro

Can you PM me where we can get a smog pushed through then?? Just got my Longtubes installed so.. anyway I cut out the secondary cats but left the resonators.. I put the x pipe before the resonators and it was still pretty quiet at idle and normal driving.

yea bro I’ll look for it And PM you, did then the car get notciablly louder while flooring it?

I am thinking to remove resonator if make it louder... The header help but still a bit quiet.

On our cars the resonators don’t wield much sound, I believe it’s all in the cats and mufflers but bc I don’t want drone I’m leaving the mufflers until I get a set of c63 mufflers. But now hopefully after this exhaust mod the car will really open up without to much drone, -!; hopefully pick up spme HP:)

OK guys so I did the exhaust...verdict...sounds good but there’s a little screech that I believe is from the x pipe but sounds a lot throatier and a lot louder when flooring, a bit louder revving and stock while cruising, I want to find the source of the screech tho it bothers me. NOW just waiting for a set of c63 mufflers to come about

They pop up on the facebook groups.