[Kolyan2k]

Wondering is anyone just gutted stock muffler? To keep stock look and valve

[BentZero]

Originally Posted by Kolyan2k

Wondering is anyone just gutted stock muffler? To keep stock look and valve

Check out this post by Mywifes335. I finally found a shop that can do the work. I may give this a shot depending on what they want to charge me. I'll skip the bypass tube, but definitely want to remove the resonator and gut the back box.

http://www.2addicts.com/forums/showt...php?p=19515910

[Kolyan2k]

Originally Posted by BentZero

Check out this post by Mywifes335. I finally found a shop that can do the work. I may give this a shot depending on what they want to charge me. I'll skip the bypass tube, but definitely want to remove the resonator and gut the back box.

http://www.2addicts.com/forums/showt...php?p=19515910

Em... thanks. So I guess I would want to remove all fiberglass from back muffler and probably replace inside with straight tubes

[BentZero]

Originally Posted by Kolyan2k

Em... thanks. So I guess I would want to either remove all fiberglass from back muffler and/or replace inside with straight tubes

both

[Kolyan2k]

Originally Posted by BentZero

both

Yeah I meant both. Edited

Now need to find muffler shop that will do it nice.

[BentZero]

Originally Posted by Kolyan2k

Yeah I meant both. Edited

Now need to find muffler shop that will do it nice.

Yeah, so what I gathered from it is this:

Delete resonator
Remove packing from 1st and 3rd chamber
Replace perforated tubing in 3rd chamber (and maybe 1st too???) with straight tubing

[Kolyan2k]

Originally Posted by BentZero

Yeah, so what I gathered from it is this:

Delete resonator
Remove packing from 1st and 3rd chamber
Replace perforated tubing in 3rd chamber (and maybe 1st too???) with straight tubing

Well I don't want to remove resonator, just mod the stock muffler box. I assume the stock muffler has 3 chambers? Need to remove all fiberglass and replace tubing in 3rd

Point is not to spend $750 plus install for MPE. It's the same modified muffler. I have never done exhaust on any of my cars, this one is just way too silent

[Kolyan2k]

Originally Posted by BentZero

Yeah, so what I gathered from it is this:

Delete resonator
Remove packing from 1st and 3rd chamber
Replace perforated tubing in 3rd chamber (and maybe 1st too???) with straight tubing

I suppose this is our muffler. So need to either weld all holes in 1 and 3 or install straight pipes (check original thread as well). This is supposed to be better then MPE by the way.

http://f30.bimmerpost.com/forums/sho...d.php?t=850113

[DanielGr]

Has anyone tried just the centre resonator delete while retaining the stock/MPE mufflers?

[Beef Supreme]

Sounds good! But will this hurt performance? I've heard that it could actually reduce low end torque a bit. Not sure how true that is.

[Amack]

I havent noticed any performance issues. Echo mode is a dog down low but its echo mode.

[M235guy]

Originally Posted by Kolyan2k

I suppose this is our muffler. So need to either weld all holes in 1 and 3 or install straight pipes (check original thread as well). This is supposed to be better then MPE by the way.

http://f30.bimmerpost.com/forums/sho...d.php?t=850113

I did this to my spare muffler. It was a pita

[Kolyan2k]

I wanna go to muffler shop tomorrow and ask them. If they can't do it, that's fine.....will be looking for used MPE. I can't justify $750 bucks for a muffler

[EuroDude]

some pics during the modification would be helpful.

[BentZero]

I'm gonna call a shop tomorrow. I need a stop gap until I save up enough for an AWE or Fabspeed setup. If I'm lucky I'll like this just fine and the money can go towards a sport cat.

[Kolyan2k]

Asked the shop to make those 2 pipes solid. Was quoted $400 bucks and guy said he doesn't understand the logic behind leaving the 2nd chamber since everything is going to escape through tail pipes anyway. He said eliminating muffler completely is $200......

[BentZero]

Yeah, I called a shop and they said they wouldn't even do it because the metal on the muffler is too thin to weld. :/ Oh well, guess I'll just continue to save up for an exhaust.

[Kolyan2k]

So pretty much this thing is $200 at muffler shop

http://www.fabspeed.com/bmw-m235i-f2...xhaust-system/

[Drpoomanchu]

Originally Posted by Alfonso235i

Not my car, this pic is from my tuners fb. I have seen multiple cars do this, on dynos and the street. My car did the exact same thing on the dyno.

Just another good reason to pass on the subi's... First ringlands and now a fire hazard... What next .. !

[Alfonso235i]

Originally Posted by Drpoomanchu

Just another good reason to pass on the subi's... First ringlands and now a fire hazard... What next .. !

I did shoot a rod out the side of that Subi and got a 235. Lol

[Mywifes335]

Originally Posted by Mywifes335

You can probably tune it to pull ignition and dump fuel on lift - basically exaggerate the current overrun programming.

Flames are when unburnt fuel is dumped and then ignited by the hot exhaust.

Then you'll need a completely straight through exhaust.

I had fire in my Evo X.

I stand corrected. With race gas and big turbo, it made fire:



That's right, y'all! Yes! 500whp now.

[BentZero]

I heard a 335 last night with a muffler delete and catless DP. It sounded amazing. Nowhere near as loud as I thought it would sound. Owner said that inside of the cabin is drone city though and is looking to gut his stock muffler and re-attach it.