BIG BAD BOSSMAN

I'm debating on removing the resonator, from my car. Also, I thinking of removing the secondary cats. Should I remove both, or just the resonator? Will I gain or lose any power? Thanks for the help and advice.

C300Sport

Don't simply remove the resonator....trust me on this...it will sound like total *****....
I would say the x-pipe will make it sound pretty good but still pretty trumphety around 4000-5000 RPM. Burnt Egg Roll just did an x-pipe with secondary cat delete and posted a couple clips so do a search for those and see what you think.
I don't think it will make much difference with the power either way but you may gain a tiny bit in the higher RPMs.

BIG BAD BOSSMAN

Thanks bro

nbturbos

A long time ago I made the mistake of doing the straight pipes at first instead of X pipe..big mistake. Sounded like total ***. I have an X pipe now and like it.

patrickkc

do you have sound clip of your c300 with straight pipes?

C300Sport

I started with straight pipes and was too embarrased of the sound to make any clips...it is not good at all!!

burnteggroll

[quote=BIG BAD BOSSMAN;3688396]I'm debating on removing the resonator, from my car. Also, I thinking of removing the secondary cats. Should I remove both, or just the resonator? Will I gain or lose any power? Thanks for the help and advice.[/

i would caution u about deleting the post cats and removing the resonator at the same time cause it might be too loud for some people... if u want, u should install your xpipe first and see how u like it then go further if u seem fit.. you won't lose any power or torque when done correctly... my lost of little power was do to placing the xpipe a little further front...however, after resetting the ecu and flooring it for a few dayz, the ecu adjusted to my new driving conditions with the new mods..