twobars

got my resonator removed today and replaced it with a 3 inch x-pipe. I expected much more based on videos that i watched but overall the volume of the exhaust increased marginally and the sound got a bit smoother. I kinda miss the burbly (if that describes it) aspect of the stock exhaust but like the volume of the x-pipe. the noise inside the cabin is a little bit deeper and louder at low rpms but not much different at high rpms.

ill post a better video during the day with acceleration

video: http://www.youtube.com/watch?v=Hu8DbGLpUTQ

Sincity

So you still have your secondary cats?

twobars

yeah just got rid of the resonator, was going to go with straight pipes instead of x-pipe but the people at the shop recommended an x-pipe. to be honest i miss the throatiness of the stock exhaust, I'm confused as to why mine sounds so much different from stang's.

this video also makes the exhaust seem much louder than it is really is cuz the camera is right near the tips.

Sincity

It is because Stang replaced the secondaries with an x-pipe and then removed the resonator. You need the X as far upstream as practical.

twobars

ah my only grief is that i still have 2 years on my warranty and don't wanna really blow it by taking out my cats, well I'm going to have to figure out what i can do, literally bought the x-pipe today and am thinking of getting the resonator put back in tomorrow unless theres another way i can get that throaty sound back

jsc1234

is there a big price difference between x-pipes and straight pipes? and what x-pipes are you using?

twobars

i got a custom 3 inch x pipe fabricated and my car is sounding smoother and more exotic, less like american muscle. i assume that the resonator is what is making the c63 sound so throaty because the x pipe has changed it. i was going to go with straight pipes but the technician insisted the car needed an x

twobars

getting the x pipe switched out for straight pipes today, hopefully it'll give me the growl back, ill post a video later

stangxs

Delete the 2nd cats, and put the xpipe there, put straight pipes in place of the resonator... you'll love it

JeffDL

this. I just had this done to my car today. sound is fantastic loud but still very quiet at 80-85mph on the highway.

twobars

i realllly want to do that, but i have a year and a half left on my warranty so i think I'm going to wait till next year to get that done, i don't want to blow a full warranty for cats, ill wait and get headers and a tune while I'm at it

stangxs

Unless your service advisor is a real douchebag, you should be fine. I have 2 years left on mine, and talked to them about modifying it, he said they can "work around it" if any problems occur

twobars

what dealer do you get your car serviced at?

Even Money

Honestly....if you're thinking headers and tune, do it now...or don't do anything if you're that concerned about your warranty.

stangxs

Fletcher Jones of Newport

twobars

o alright i've bought 3 mercs through them but i live kinda far. just got my resonator delete switched to 3 inch straight pipes, completely solved the problem, my c63 sounds like an animal again only this time noticeably louder than stock. Anyone who is just removing their resonator for sound and volume purposes, go with straight pipes not an X-pipe you will love it.

twobars

ill post a video of it tomorrow, its much deeper and more (gurgly?) than stock and is loud in the low rpms but not obnoxious

_AMG_

+1

Sincity

The car is louder, but there is no performance gain (other than weight loss). Replace the secondary cats with the X for a small gain.