chris.bachman

I've had all of the parts for my exhaust sitting around for a month or so and finally got around to installing it all. Secondary cats were removed and a DynoMax X-Flo Muffler was installed in their place right under the center of the car. The shop did aluminized steel from the muffler all the way back with some pretty tricky bends on the passenger side. I used single-in dual-out double walled stainless steel beveled tips from Bear River Converters. The passenger side tip had to be modified quite a bit to fit without destroying the spare tire tub. Anyway here are a few pictures, I'll get a sound clip up soon since it sounds beastly now.





















Total cost of all parts and labor excluding the diffuser was $650.

jturkel

looks sick! can't wait for clips! do you have headers?

c32kompressor

SOUND CLIPS!!!!!!!!!!!

chris.bachman

No headers yet jturkel, but I can do you one better than sound clips, I'll show you in person anytime you want to meet up here in Houston. I'll get you info on the place that did it if you are interested as well.

chris.bachman

Sound clip as promised, sounds much deeper and LOUDER in person. Scared the crap out of some guy in an E55 on the highway yesterday when I stepped on it next to him.

http://www.youtube.com/watch?v=0gsBIiHlME0

ddtham

Very nice! The rumble at idle is just too amazing!

jturkel

yah. i keep forgetting i'm out here lol. i'll have to check it out sometime when i'm free (damn school is keeping me busy 24/7 basically)

so just for clarification, you have deleted your secondaries, replaced them with one muffler (i'm guessing this in the place where your resonator would be). and then you have taken off the AMG mufflers and replaced them with the dynomax ones with tips?

also, any idea as to about how much weight was added with your setup?

97W202

sounds so sick. I want to do this to my car I just wish I had more info.

chris.bachman

Secondary cats connect to a Y-Pipe which then meets the resonator and goes all the way back with a single 2.75 inch pipe the the single-in dual out muffler....this is in the stock setup.

In my setup the secondary cats were cut off, those two pipes were then fed directly into the X-Flo muffler which sits in the area that used to house the cats, y-pipe and resonator. The muffler is a dual-in dual-out x-pipe configuration. From the two outlets on the muffler it runs back with a 2.5 inch pipe on each side and terminates into the tips. Hope that clarifies. You can sort of see it in the pictures.

97W202

ya man that helps alot!
your car sounds MEAN

Right now I have both secondary cats and resonator removed and replaced with straight pipe, what would I need to do?
replace the straight pipe where the cats used to be for the x-pipe?

do u know where I can get that x-pipe/muffler?

loudandheard

How's the acceleration now. Did you feel you lost low end torque or does it feel more responsive over all?

Looks amazing, the cell phone pics I got just didn't do it justice. The sound is a lot more civilized then what I thought. I was thinking it was going to be raspy, but it just sounds like our stock sound, just a bit louder.

I'm sure you just dropped close to 50lbs, by eliminating the secondary cats, resonator, and factory exhaust.

Viper98912

Looks great and sounds great man

loudandheard

Here you go http://www.jegs.com/p/Dynomax/Dynoma...xdesc1|0&Nty=0

This set up is for a dual exhaust, so you would just have to have them remove the y-pipe and and have them have two pipes come into the dynomax muffler and then you would need them to run two pipe for dual exhaust. This would also delete your amg muffler.

97W202

so that xpipe would replace the straight pipe I put in when I removed the secondary cats?

EDIT: I have an amg muffler?

loudandheard

The dynomax would be your muffler and sits in the area that the resonator was before. So every thing past you primary cats are gone and you would have a shop run pipes from both cats into the dynomax mufler and then you would run two pipes out of the dynomax muffler to create a dual outlet.

jturkel

you really think 50 pound drop? shiz.....if the configuration lost weight, i want....there is nothing else i can really do (at least afford to do at this point) to make it any quicker.

regarding a decrease in backpressure, it doesn't really make a difference for supercharged cars. and FWIW, i recall that Rob at needswings tested out some electric cutouts on his exhaust. he may have lost a little low end, but picked up some high end, adding 1-1.5 mph to his trap speed IIRC

SGTzAMG

O_O dang!

chris.bachman

There may be a very slight loss in low end, like under 3000 rpm's, maybe. Could just me my mind telling me that since I've read about it. Either way, it sounds devastating and the back of the car looks so beefy now. I love the look and the sound more than I care about losing 2-3 horsepower.

loudandheard

The resonator weighs easily around 20 lbs, the amg muffler weighs about 40 lbs, each cat probably weighs about 5 lbs for a total weight saving of 10 lbs for the pair, and the y pipe weight around 2 lbs. So if we add all of that together it comes out to be about 70 lbs, the muffler Chris added another muffler which probably weighs about 25-30lbs. So the weight savings might be more like 30-40 lbs, maybe not 50 lbs. I've had both the resonator and the muffler off my car and they were much heavier than what I thought.

What would you say Chris? How much weight do you think was saved?

jturkel

..and how about the addition of the other pipe going to the passenger side?

i mean, if there is even a 30-40 lb weight savings, that would offset a measley 1-3 hp on low end....i have too much low end power anyway. i'd gladly trade a little low end for a little top end

Newzchspy

[QUOTE=chris.bachman;4280545]I've had all of the parts for my exhaust sitting around for a month or so and finally got around to installing it all. Secondary cats were removed and a DynoMax X-Flo Muffler was installed in their place right under the center of the car. The shop did aluminized steel from the muffler all the way back with some pretty tricky bends on the passenger side. I used single-in dual-out double walled stainless steel beveled tips from Bear River Converters. The passenger side tip had to be modified quite a bit to fit without destroying the spare tire tub. Anyway here are a few pictures, I'll get a sound clip up soon since it sounds beastly now.


Bump for nice install and great sound. Chris, where did you get the diffuser??

chris.bachman

Diffuser came from ebay, some store called GT Club or something like that. Fitment was almost perfect.

loudandheard

I doubt that the pipe added more than 5 lbs, but I don't know what gauge of pipe they use and if it's lighter or heavier than the piping mercedes uses. I would think being 2.5" instead of 2.75 reduces the weight by a bit of the pipe.

I forgot the weight of the exhaust tips, I think each one weighed like 5lbs. Maybe the weight savings is more like 20lbs. Every thing would have to be weighed to be exact, but I'm sure that there is a weight savings.

FrankW

remember to go slow over bumps. people have put the muffler where the resonator is and for lowered car the muffler scraps on bumps easy.

jturkel

lol. it's all good. i was always concerned that doing a full exhaust setup would add too much weight, but i never considered having that single muffler in the middle. maybe i'll look into doing this after the end of this block (which is kicking my a$$)