Most of your know Im rear-mount turbo'd. Car sounds amazing, its not too loud at all (IMO), no rasp, just deep gargle at idle (very deep, like quiet open cutout lol).

Long story short, my old man is in a pissy mood (lol, sounds like Im a kid. Im still living with parents, college isnt exactly cheap). Told me that I better "change the muffler on your car. Just put it back the way it was before, I need some tranquility". I told him the RMT situation with replacing the muffler. Told me "I dont care what you have to do, fix that $h!t bla bla bla".

So behind the muffler, really there's no space for a muffler, there is but it would be a VERY tight squeeze, on a very small muffler.

Any recommendations? Will a straight-through (a la magnaflow) style get the job done? or would I need an old school baffled-chamber muffler? Keep in mind I dont want to hamper performance here, with the turbo being in the back and all. Im trying to avoid doing like streetz with the cutout for the sake of convenience, thus my leaning towards a straight-through muffler. But if its still going to be loud... I guess I wont have a choice.

Any effective straight-through mufflers that actually muffle? lol

Thank you!

 

just keep it quiet when you leave the house and pull up thats what I did when I lived at home. Is what you could do is buy an electric cut out but route it to a different muffler under the car so you can just flip a switch and it would be quite. Would also be great if cops don't like loud cars like in my town!

 

Not experienced with FI but the magnaflow straights arent to great for quiet(especially the round body ones). If you can, a 14" round body as a resonator and a 21" 6"x9" muffler would be about as quiet as possible with your space constrictions.

Also, check out burns mufflers, they arent cheap but make quality stuff for this kind of situation.

GL

 

Straight thru magnaflow will make your dad even more upset, it wont lower volume will just make it alot deeper and annoying. Whats wrong with how i have it?. you dont have to put a cutout, just get a 3" inlet/outlet, thats only reason why i put a cutout cuz muffler i put had too small of inlet/outlet and really affected my turbo setup (to the negative). Theres more than enough space back there. just take it to miami muffler so they can do mandrel bends instead of them crush bends u got rite now.

 

Burns have like 6" mufflers.

Expensive but they're probably all you can do in your situation, and you can turn around and sell it for little loss in the pocket book.

http://www.burnsstainless.com/Ultral...temuffler.html

This is probably the best for your situation..
ID OD L WT P/O $
3" 4-1/2" 6" 4.72 SM-300-450-6 233.00

 

Eddie Ive seen this mufflers before at Prosepct Mufflers in Ft lauderdale.

Dont know how they sound tho

 

I work 730-noon tomorrow. After work Im going straight to the muffler shop, gotta have this issue sorted out by tomorrow nite- I kinda like living where Im at LOL.

I'll take pix and post them up afterwards. Thanks for the input.

Seems I may be able to stick a baffled muffler back there... gonna have to sacrifice some performance for the sake of living here at home lol. Housing is more important than WHP so chamber'd muffler it is lol.

 

"downpipe/ tailpipe" cut off


Muffler mocked into place


Welding is up


Welded up still without top (no picture of it from behind WITH tip)


For you curious fellows... how my IC piping is being routed

 

and my sexiness


lol

btw, Its a Magnaflow muffler. Perforated core, no baffles. 3" in/out, center outlet/side inlet. Cost me $90+ installation.

It works GREAT! car sounds amazing. It muffled out all the loud growl I had at WOT and the lil rasp I had, yet it left the turbo's spooling sound. Basically it sounds like a mix bet'n a Z33 and a 335i with catback. Has that "tuned sound" to is. Gotta try to get a video clip this weekend!

Thanks!

 

useless information you'v given, we wanna know if it hurt performance?

lol j/k, looks good, almost like mine just in more of an angle.

 

good point you bring up my auto-friend.

1st gear seems as it doesnt rev as "Freely"
2nd gear has a gradual increase in boost, like the needle slowly moves through the PSI, where as before it would just go to 0, then up to the 5psi. and I did see the 5psi
3rd gear went to 5psi as well
4th gear hit 6psi and that was it :-(

So on 4th gear, it did give me a 2psi pressure drop (better than streetz' 3-4psi drop on his 2.5" in/out Dynomax). OMG I want to get a sound clip in lol

 

which mom n pop shop did u go to?

 

The one and only meng, Castellano's

 

Castellano's for evah!!! I say you put a cutout man!

 

lol, i agree with the party pooping ridalin man, cut out ftmfw, that was when u esacpe the confines of your house u open it up and ROLL OUT!

 

With that rear turbo setup, what's the lag like? I would have expected heaps of it from that distance.

 

Not if you wrap the exhaust leading to the turbo. Thats the trick.

Keep the exhaust as hot as possible up to the turbo to maintain its velocity out of the engine to the turbo. My turbo spools around 2900 in 4th gear- keep in mind this is excellent given that my turbo is a gigantic monster lol.

 

That's great and everything, but what does Pops think??

 

Well, came home at 2am Sunday morning, and 130am this morning (working, not partying, I wish), mom tells me that she knew when I got home, and that my dad didnt even flinch, so bahahaha!!!!! muffler did the trick!

http://www.youtube.com/watch?v=JKcQXBN_CvM

quick sprint out of the toll. I missed 3rd FTLLLLLLLLLLLL. That rattling sound you hear when I floor it is NOT pinging, its all the loose crap in the car shaking lol. BTW, that's streetzlegend (auto-boi) teasing me about missing the gear LOL.

More videos coming tonite when I get back from work. Thanks streetz!

 

sounds great

 

That sounds awesome. Personally I'd put a small little elbow coming out of the muffler just so it looks a little more "normal" (tip exiting where it would stock). But other than that, slick setup.

 

werd thanks. and yea it does have one leading to stock location. Not a tip, just a pipe leading to it lol. No need for pretty here lol. I just didnt take a picture of it... too excited to turn it on and drive it

 

Ahh, gotcha. No need for a tip, I just meant that it would look weird to have the muffler tucked back in there and nothing leading to the cutout in the bumper, but you have it covered. No tip needed with 3", it looks baller by itself

 

Ahh man, i love the spooling sound. Thats what im hoping i will still be able to hear. Sounds nice man and props on the setup. Dont feel bad, i saw some kids standing ont he side of the road so i hit it in first and missed second LOL. Sometimes when you miss its a ***** to get back into gear too lol.

 

yea, it really sucks that you have to give up all the built up boost everytime u shift lol..



car sounds great, still slow though

 

its ok man, I got some oil out my tailpipe for your windshield ;-)

video #2!

http://www.youtube.com/watch?v=2kQI-ZvJXug

 

http://www.youtube.com/watch?v=hzutS8qlj8U

video #3- driving away normal 1st gear... That sounds pretty dang nice! lol

 

Lol.. your pod filter is so close to your muffler its like a secondary EGR if youre at idle :P

Cool that it works though! Thats awesome ingenuity :P

 

how come im not called into any SW vid runs? lol, im only near that area 5 days a week!

 

Its even more high-pitched inside the cabin. And from outside forget it. If Im doing a flyby on you, that sucka is loud (the spooling), cool stuff! And yea I know I have to change my tranny fluid, its got like 40k on it. Also want to cut the shifter a bit more (stock cut shifter, STS was causing me to miss gears like woah, cut stock shifter, hardly ever). thanks!

lol thanks!
lol. Cus its last minute and I dont need an enterage (sp*) to bring even more attention to myself flooring it around town lol...

Ernie's stuff is almost done meng you gotta catch up! When the SW goes to moroso we're taking the 4 big boi turbo maximas with us.

SW >*

 

lol, yah i know im just handling a couple other problems before i finish piecing it together, i mean i already have a few of the parts lying round, there just a couple maintanance issues i gotta work out first.

 

so.... you guys remember that 2psi drop I had after adding the muffler??? problem FIXED!

pipe gets plasma cut


cutout gets welded on


cap is on and off (2psi less, or added) at my will


It does sound like a dumptruck under 1800, but after that it sounds pretty good (again, concidering its dumping right out the turbo, lol). no soundclip yet

 

No soundclip no care!!

 

damn i wish i new of some welding shops here in mass to weld a flange on a reducer to fit my stock axle back not to highjack ur thread but are you using stock exhaust piping before the turbo??is it nescasary to get bigger piping for the rmt??

 

Is that the wastegate dump tube I see there in the background?

 

Yes that is. Looks like my dump

 

Oh heck no! lol There is nothing stock on my exhaust, including headers. That's ebay headers on custom equal length y-pipe, on warpspeed test pipe and resonated b-pipe.

the SHO man answers correctly

indeed

 

damn copy cat!!! wat else u goign to copy from me? lol going to paint ur car sage mist green and get an auto? lol j/k


Time to dyno that shet again mate!!!

 

ok i thought the piping looked bigger than stock sorry would a simple 2" cat back suffice, or am i going to need to upgrade the whole exh. sys.? im prepared for flame-age if necc....

 

Auto? ME?? bahahha!!!! streetz you are such a joker, wat a guy, wat a guy


I never said I used 2" catback, Im using aftermarket 2.5" catback (stock is 2.3"), I would never use stock piping anyways. Especially with the restrictions along the way. After the turbo its 3"