SLK AMG 55 X Pipe Decision time

[rev-erend]

Hi All

I've had an SLK AMG 55 since the beginning of this summer and really enjoy it but just lately
have felt the need for it to be a little louder under acceleration and at tickover whilst not being too much louder on a motorway cruise.


So - I am looking at an X pipe conversion at CKS in Watford.

Guess its a given that the resonator will be removed but what about the secondary cats.

Are they needed for emissions - is their removal going to make MOT time difficult.

Is there really any BHP gained by their removal?

Any pictures you have may help.

Thanks

Edited by rev-erend on Wednesday 25th November 09:15

[rev-erend]

Thanks for recommending Infinity but it really is too far for me to travel.

Also thanks for the advice on CKS.

[rev-erend]

Hi All

In the end - I cancelled my slot at CKS and had the modification done at EMP.

Very pleased with the work.

I had the resonator removed and left the secondary cats in place. Now have an X pipe
that sounds great.

Louder than standard, quite when cruising and a bit louder under acceleration.

Just what I wanted and half the price that CKS wanted.

[rev-erend]

EMP are in St Albans and have a nice set-up with a custom pipe bender and full TIG / MIG for this kind of work.

I do like a good flange but in this case I had it fully welded in.

I have some pictures - will add them later tonight.

[rev-erend]

An x pipe lets the two banks of cylinders achieve better exhaust scavenging via the pulse wave that travels at the speed of sound.

A bit more power.

[rev-erend]

Yes agree the bark on start up is great for waking up the neighbours.



Cant say I notice the MPG being any worse.

[rev-erend]

Hi Lee

Yes it's been a long time.

Love the x pipe. It louder on startup but I do not even notice the difference when cruising.

Sometimes I regret not having the secondary cats removed but then I actually prefer it a bit quieter
99% of the time.

Go for it - I am sure you will be happy with the difference.

Edited by rev-erend on Monday 18th January 18:02