cpbeasley

So, some muffler shop in West Covina? Cracked open the casing of this c320's stock muffler (the top apparently), did something, and sealed it back up... and the result was beautiful.

I ask for ND2020, as he has a c320 Sport, and this sort of thing would be right up his alley.

Here's the video
http://www.youtube.com/watch?v=Ukdr_7EC6uI

What in the hell did they do?? I want to be able to help him describe this to a shop here so he can have the same thing done.

Thank you

samaritrey

not bad

laneshift

Most likely took out some/all of the guts/insulation.

C63 Dreamer

I like that it doesn't seem any louder inside the car. Would like some drive by videos though.

West Covina is about 10mins from me. Might have to stop by and ask some questions.

-Markus-

cpbeasley

Markus

You should!! It'd be great to know, since apparently this has been an in-house trick of this muffler shop for some time now. The rest of us need to know.

Laneshift is prolly right tho, maybe removing insulation and patching it back up.

C63 Dreamer

If I don't have anything going on tomorrow in the afternoon, I'll make a run over there.

Found another vid. Still no drive by shots though....

http://www.youtube.com/watch?v=5Dcqy7lVfoo

cpbeasley

Nice find c63. Im really impressed. If I hadn't ditched my stock muffler already, I woulda done this for sure. Who needs aftermarket when the stock has this waiting to be unlocked?

Appreciate you going to check it out!

hanknum

Does anyone know how much they charged for this?

pcy

does this have any impact on the state inspections (specifically for NH or MA)?

XsuperbeeX

thats a guy from here... screen name ngr_mike or nrg_mike.. ask karo if you want quicker responds.. its his friend and mike doesnt come here anymore

phister

Mine friend did that to his old turbo eclipse. They just removed the packing and insulation in the muffler to give it a more straight through design, kind of like a high flow cat. It really doesnt cost too much. Most indie exhaust shops will do it for less than 200 easily.

mleskovar

My guess is they removed some of the baffles.

Xhale707

Mine still sounds way better =D

XsuperbeeX

dood.. some people dont want it to be loud...

nlpamg

yup, that's Mike's car.

I know he wasn't satisfied by that and ended up getting a Renntech exhaust...

cpbeasley

Unless it's a 5.7L+ with a mean bumpstik and a nasty lope, I prefer to keep a smaller displacement engine's exhaust note on the subtle side with just a bit of growl under acceleration.

splinter

Probably something like this…https://mbworld.org/forums/w211-amg/...cs-inside.html

Pay no mind to the wackiness as the thread evolves.

C63 Dreamer

I'm right there with you on that. My last vehicle, and DD http://www.youtube.com/watch?v=NeUwg7q6oyQ

Needless to say I'm going for the quiet approach this time. It's nice to be able to hear the radio, and myself think while driving.

-Markus-

cpbeasley

I hear ya bro! (no pun intended)

My old daily driver, an 02 Camaro SS (cam/heads/headers/OR-Y) was lots of fun, but it's so nice to have a quiet drive in my w203! I can relax and/or focus or something else other than trying to ignore the smell of unburnt gas and sound of fire & brimstone coming from the tail-pipes (which ultimately droned throughout the cabin and my brain).
<-- to growing up

nrg_mike

Hey guys!
Sorry it's been a while but I've been working a new job and security there is so tight that I can't have my laptop or even my phone on while in the building. Guess that explains why I'm hardly on here these days.

Anyway...

Yah, the shop that did it was Valley Muffler in West Covina (it's more on the edge of city of industry/nogales than west co). They were really cool to work with it and offered me a great deal since I'd been going there since I worked at an old speed shop across the street 10 years ago.
Here's a glimpse of what they did.
They basically opened the muffler and removed the baffling. There, we had a few options on making it a bit louder or more quiet. I opted just to gut the thing and go for it. It was pretty awesome. It wasn't near as cool as running no exhaust but who here is crazy enough to do that? lol
Anyway, it sounded great for the time that I had it. There was no drone in or out of the car and it really seemed tame when not on the throttle.

Eventually, I went for a Renntech exhaust, sound pipe and chip tune because... well... I wanted Renntech. lol. It's a bit louder but nothing compared to an Eisenmann Race or Milk4man's muffler-less setup. It's actually quite comparable to Remus (I think Remus made a line of exhausts for Renntech)(well.. or so I've read here).

cpbeasley

Who did the tune? Was their a noticeable difference over stock after said mods? My buddy on here ND2020 has an 04 c320 sport and Im always razzing him about doing exhaust and/or power mods.

So I saw your video of the Renntech, sounded pretty good. DId you ever do anything about the two large tips kinda haphazardly hangning out under the exhaust cutout in the bumper?

nrg_mike

There was a definite sound increase, especially when you were liberal w/ the gas pedal. It's a subtle difference and is definitely an improvement over stock. It's a similar change to when people do a resonator delete.
As for my Renntech exhaust, yes, I had a buddy of mine trim the exhaust opening so that my exhaust would sit evenly in the opening. It's not as clean as the dual tip on the 06-07 AMG rear but it's fine for me. I figure if I really wanted, I'd just get the 07 rear bumper but I'm fine until then.

OneOfaKindTrini

They gutted the resonator and muffler and anything else that was restrictive.