New Mod!!! Must Read!!!

BMWnation · 08-31-2007, 02:24 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, 02:32 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, 03:11 PM

Some pictures to show us what you did will help

uberschnell · 09-01-2007, 08:44 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, 09:23 PM

did u do the golf tee mod too?

T i h o r · 09-01-2007, 09:41 PM

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

HyperM3 · 09-01-2007, 10:39 PM

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

08-31-2007, 02:24 PM	#1
BMWnation BMWXXX Drives: 335i Space Gray Join Date: Apr 2006 Location: Q-NY Posts: 220 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, 02:32 PM	#2
Darkclaw13 ----------- Drives: 2007 335i coupe Join Date: Aug 2006 Location: Northern VA Posts: 142 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, 03:11 PM	#3
Don Juan Second Lieutenant Drives: 2013 535i M Sport Join Date: Jun 2007 Location: South Florida Posts: 218 iTrader: (0)	Some pictures to show us what you did will help __________________ Don Juan 2013 535i M Sport Premium Package, M Sport Package, Napa Leather, Multi Comfort Seats, Aluminum Interior, IND Painted reflectors (front & Back), M Performance Gloss Black Grills , M Carbon Fiber Spoiler, JB4 Stg2 Map 5, K&N filter,20"HRE FF Wheels, 3.75"quad pipes and M5 rear diffuser) Retired 2011 X5 35d PP,SPP, 3rd Row, Aluminum roof Rails, Premium Stereo.
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09-01-2007, 08:44 PM	#4
uberschnell Brigadier General Drives: // 135i //, X5 Join Date: Mar 2007 Location: Bay Area Posts: 3,416 iTrader: (43)	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. __________________ - 08 135i - Wavetrac LSD, AST 4100, Swift springs, Brembo GT brakes, M3 front sway, Meyle HD links, Dinan Camber plates, Whiteline subframe bushings, M3 rear guide and upper link, M3 front control arms, HP custom M3 front Strut brace, Megan rear control arms, F30 brake shields -
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09-01-2007, 09:23 PM	#5
VanSky Captain Drives: BMW Join Date: Jul 2006 Location: Vancouver Posts: 663 iTrader: (1)	did u do the golf tee mod too? __________________
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09-01-2007, 09:41 PM	#6
T i h o r n00b Drives: 2008 e92 335i 6spd Join Date: Mar 2007 Location: Toronto Posts: 1,981 iTrader: (12)	I've heard of this before. I believe it's called the "Placebo Effect." lol __________________ ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ For Sale: BLIZZAKS / POTENZAS PM Me!
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09-01-2007, 10:39 PM	#7
HyperM3 Too many Alex's, from now on, call me Beaufort Drives: See Sig Join Date: Feb 2007 Location: Lawrenceville, NJ Posts: 6,168 iTrader: (8)	Are you getting any drone now that you removed the x-pipe? __________________ 13 HD FatBob 14 Audi S6 Audi Brand Specialist @ Princeton Audi
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