phoung

stock mufflers, all cats and resonator delete
Does anyone know what this setup would sound like, on any 55 amg non kompressor cars.

MJ50

it'll sound way too loud...
keep the prim cat and add x-pipe

IIIMBPIII

My car now has no mufflers and no resonator but all 4 CATs every meet I have been to people absolutely LOVE the sound of the car! Don't get me wrong I love loud but removing the 4 CATs would so loud that you wouldnt even be able to start your car with out a cop being on you!

SLK_BLK

I have Supersprint X-Pipe with their exhaust system, I think it is a little quite for my liking!

alroumi

I've got the SuperSprint x pipe with the kleemann rear cats and Kleemann headers extremely loud when I keep it in manual mode otherwise in "D" its calm as the gearbox isnt as aggressive like being constantly in higher rpm range.

jnolte

On my C43 I have Resonator removed, Muffler removed and 2 of the 4 cats removed. Its loud but not too loud.. Can drone sometimes

phoung

but if i do a kleeman header kit, i would have to remove the primary cats, i live down here in the south and they are not strict down here with emissions. well what if i do a header, all cat delete and an aftermarket resonator how would that sound? haha i just might as well do it instead of asking questions.

jnolte

loud!

99e320

take off the rear 2 cats and go from there

lsufan

I've got a post of 2nd'y CAT delete, no rear cans, and x-pipe. It's loud, but not that loud. Of course, my former Roush scared the neighbors every morning when I hit the START button. I was going to mess with primary delete, but you'll probably need someone that can do a good dyno tune for you, as the post primary o2 sensors do play a role in fuel adaptation. Kleeman, Renntech and Brabus, all advised against with primary removal. I did toy with trying a 300 cell metallic substrate CAT, but haven't tried that yet. I am thinking it will give a bit more flow, but still burn pretty good to avoid MIL issues.

phoung

i know lsufan, i'm the one commenting your vids on youtube. badass car man! if i dont do headers, than your exhaust setup is the one i'm doing.

phoung

actually, kleeman headers remove the primaries, you have to install some kind of high flow CAT yourself. but i do think it is possible to run these cars with no CATS, just have to tune it correctly on the dyno

wawy

Are you guys not concerned about losing some low end torque as a result of freeing up all that backpressure?

lsufan

As soon as mine is coming up for warranty, I'll be replacing stock with high flow 200 cells, and a good dyno tune to be sure nothing is lean. Until then, I only have to scare the immediate neighbors in the morning...

phoung

On youtube, it sounds loud enough as is. Wouldnt hi flow cats make it louder?

lsufan

Yes, louder and probably more gargles on decel.

SoCalCLK

good point

linh811

i just did the 2nd cat, resonator, xpipe, muffler delete. I don't think I could stand it if it were any louder.