New Mod!!! Must Read!!!

BMWnation · 08-31-2007, 03:24 PM

OK after looking and reading a lot of info from yaw'll I decided to go ahead and try to make the best use of the factory exhaust.

1) I removed the X pipe and replace it with straight connecting pipes.
2) Replace the compressed right exhaust pipe from X pipe to the exhaust. (factory pipe is compressed to fit neatley under the car but you can run a pipe without all the crushed points.)
3) Where the two exhaust meets each other at the back you will see a small pipe onnecting both exhaust, cut the pipe and plug it.

Well it paid off big time, the car sound like a muscle car on steriods and the I definately gained some HP. I will submit sound clips in a few. This is by far the best exhast mod I have done with both aftermarket and OEM exhaust.
Now the car has dual exhaust. The turbos spools up much faster like when I had on Magna Flow exhaust. This is a must do mod, i'm not kidding. It will cost around $150 or $200 depending where u live.
One of thee best thing about this mod is you have the stock look and the performance of a high end exhast system is what you have, BMW exhaust is one of the best exhaust system out there and by doing this mod you will definately retaing that.

Thanks,
Dave

:burnru bbe

Darkclaw13 · 08-31-2007, 03:32 PM

Well first off I think we need some pictures and definitely need some sound clips. Secondly, some dyno numbers would help.

Don Juan · 08-31-2007, 04:11 PM

Some pictures to show us what you did will help

uberschnell · 09-01-2007, 09:44 PM

Not sure what you did here that would cause the turbos to spool up much faster.
Primary and secondary cats are still there along with the baffled stock exhaust.

VanSky · 09-01-2007, 10:23 PM

did u do the golf tee mod too?

T i h o r · 09-01-2007, 10:41 PM

I've heard of this before. I believe it's called the "Placebo Effect." lol

HyperM3 · 09-01-2007, 11:39 PM

Are you getting any drone now that you removed the x-pipe?

08-31-2007, 03:24 PM	#1
BMWnation BMWXXX -49 Rep 228 Posts Drives: 335i Alpine White Join Date: Apr 2006 Location: Bergen NJ iTrader: (1)	New Mod!!! Must Read!!! - 335i Exhaust... OK after looking and reading a lot of info from yaw'll I decided to go ahead and try to make the best use of the factory exhaust. 1) I removed the X pipe and replace it with straight connecting pipes. 2) Replace the compressed right exhaust pipe from X pipe to the exhaust. (factory pipe is compressed to fit neatley under the car but you can run a pipe without all the crushed points.) 3) Where the two exhaust meets each other at the back you will see a small pipe onnecting both exhaust, cut the pipe and plug it. Well it paid off big time, the car sound like a muscle car on steriods and the I definately gained some HP. I will submit sound clips in a few. This is by far the best exhast mod I have done with both aftermarket and OEM exhaust. Now the car has dual exhaust. The turbos spools up much faster like when I had on Magna Flow exhaust. This is a must do mod, i'm not kidding. It will cost around $150 or $200 depending where u live. One of thee best thing about this mod is you have the stock look and the performance of a high end exhast system is what you have, BMW exhaust is one of the best exhaust system out there and by doing this mod you will definately retaing that. Thanks, Dave :burnru bbe
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08-31-2007, 03:32 PM	#2
Darkclaw13 ----------- 5 Rep 142 Posts Drives: 2007 335i coupe Join Date: Aug 2006 Location: Northern VA iTrader: (0)	Well first off I think we need some pictures and definitely need some sound clips. Secondly, some dyno numbers would help. __________________ 2007 335i Coupe. Montego Blue
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08-31-2007, 04:11 PM	#3
Don Juan First Lieutenant 15 Rep 332 Posts Drives: 2016 X5 M Sport Join Date: Jun 2007 Location: South Florida iTrader: (0)	Some pictures to show us what you did will help __________________ Don Juan 2016 X5 35i M Sport Premium Package,Napa Terracota Leather, Multi Comfort Seats, shades, Aluminum Interior, Rear view camera, HK Premium sound,IND Painted reflectors (front & Back), M Performance Gloss Black Grills , JB4 Stg2 Map 6,BMW Intake) Retired 2013 535i M Sport Retired 2011 X5 35d Sport Retired 2007 335i M-Sport Retired 2005 550I M-Sport
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09-01-2007, 09:44 PM	#4
uberschnell Brigadier General 493 Rep 3,990 Posts Drives: Wide Body 1 Join Date: Mar 2007 Location: Bay Area iTrader: (48)	Not sure what you did here that would cause the turbos to spool up much faster. Primary and secondary cats are still there along with the baffled stock exhaust.
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09-01-2007, 10:23 PM	#5
VanSky Captain 29 Rep 672 Posts Drives: BMW Join Date: Jul 2006 Location: Vancouver iTrader: (1)	did u do the golf tee mod too? __________________
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09-01-2007, 10:41 PM	#6
T i h o r n00b 71 Rep 2,044 Posts Drives: 2008 e92 335i 6spd Join Date: Mar 2007 Location: Toronto iTrader: (13)	I've heard of this before. I believe it's called the "Placebo Effect." lol __________________ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
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09-01-2007, 11:39 PM	#7
HyperM3 Too many Alex's, from now on, call me Beaufort 150 Rep 6,186 Posts Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ iTrader: (8)	Are you getting any drone now that you removed the x-pipe? __________________ 13 HD FatBob 17 A4 Glacier/Black 1st Edition/Pre+/Sport/EurocodeTMD/Racechip 16 S6 (gone),14 S6 (gone),14 S6 (gone),13 S6 (gone),10 S4 (gone) 07 335i(gone)
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