jakio

Hi everyone.
I looking to buy a single x to elimate my secondary cat. Does someone has info where i can buy or who am i suppose to be in contact with??i know Brian and Mbh sale them but can't reach them via pm.Any help would be really nice.I tried Ronalsale but no response either.Thank you in advance and good day.

BAD430BENZ

i actually bought a universal single-x from summit racing that i am not going to use because i have the MHP goodies . let me know if you are interested

AMMO1000hp

I have the X-pipe from Summit mentioned above. It works very well and sounds great. I would get it Bad430benz since he is not going to be able to use it.

Bad430, when is your car going in for the MHP goodies?

BAD430BENZ

thanks for putting in your $.02 about how good it works

i already have the tune....just waiting for the headers and mids to get here.......and then

emericr

I bought my X pipe and downpipes from Ronalsales. It works awesome. he can be reached at ronalusa@yahoo.com.

jakio

Thank you i will send him an email now.

DD GT3 RD

if you delete the Secondary cats but retain the primaries will it cause a cell?

SonnyakaPig

It shouldn't because there are no O2 sensors on the 2nd's

GHAZAN

no, CEL only for primary delte

DD GT3 RD

anyone know the gains from deleting the secondary cats?

SonnyakaPig

I don't know. I would guess around 5-7 whp. But, I know you weren't asking for a guess.

_AMG_

What up Sammy!!

I used to have straight pipes and dynoed at 416, After putting in the X pipe I dynoed at 418. Seemed like the car gained a little bit of low end torque but nothing crazy. Sound has gotten alot smoother, The straight pipes used to break up at around 3k-3.5k rpm.
It will not trigger CEL.

DD GT3 RD

hey brotha!

so the x pipe didnt help..im just curious about the cat delete...

the question is what did u dyno at before being catless? did u have a tune then? im curious what just deleting the secondary cats do....also would be interested to know what deleting all cats do without a tune.

_AMG_

I wish I dyoned the car when it was bone stock. When I removed my 2ndary cats (primaries are still on) I didn't have a tune and the car ran fine.

Removing both primary and 2ndary cats would provide a big power increase but I would assume the car would run pretty rich without a tune.

SPE3D

PM me your price on the x pipe please BAD430. Thanks

amg4john

I have the Summit one for sale.. also. I just had my exhaust guy do a custom X.

emericr

Here's some info on the gains on downpipes and X pipe.
https://mbworld.org/forums/c63-amg-w...om-tuning.html

mfo

Gentlemen I have a question for you… have any of you felt or hear a whistling noise around the dash-board, near the a/c vents, while driving between 120mph and 140mph???
It happens with the A/C on and off, only between 120 and 140 mph.
I have a 2009 C63, resonator delete, everything else is stock and the noise was there before the resonator was deleted. Any suggestions will be appreciated!

stangxs

Just drive over 140, problem solved.

lol

citybanker

will my c63 sound like this http://www.youtube.com/watch?v=c33wnxuxAKgif i remove the secondary cat ????

_AMG_

Maybe if you remove all 4 cats, then it will sound like this with an X pipe.
The one in the video has straight pipes in place of the 2ndary cats and resonators, possibly an H pipe to help balance sound yet have that AMG bark.