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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Exhaust for e92 335i with best gains?



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      05-15-2007, 02:33 PM   #1
cantc0pe
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Exhaust for e92 335i with best gains?

hey, im personally looking for the exhaust that has the highest recorded gains in whp and torque over a bone stock car.

any idea which exhaust this is?
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      05-15-2007, 03:27 PM   #2
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Just dont get the one Eric got...:-)

I have the ultimate racing one...but I have not done any dynos yet.
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      05-15-2007, 04:38 PM   #3
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I say wait to see what options you have for TBE later on. Or if your baller enough, you can opt for the whole supersprint system WITH downpipes.
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      05-15-2007, 10:31 PM   #4
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yea i know that stuff, im just wondering which companies have the highest numbers that are proven on the dyno.

i want to know for sure im getting an exhaust system that has verified and true claims, as well as higher numbers than the others out there. i mean with something as far as exhaust, its fair to say some are better than others...and im looking for the exhaust that was built for max gains.
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      05-15-2007, 11:31 PM   #5
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cantc0pe,
Right now I think the highest proven exhaust is the supersprint full exhaust with downpipes. I think it posted 26RWHP. Toss in a procede with that and you will have huge numbers. at least 400rwhp and probably 450RWTQ if not more.
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      05-15-2007, 11:35 PM   #6
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cantc0pe,
Right now I think the highest proven exhaust is the supersprint full exhaust with downpipes. I think it posted 26RWHP. Toss in a procede with that and you will have huge numbers. at least 400rwhp and probably 450RWTQ if not more.
im waiting on my buddy who is currently developing a chip. he is in the final stages of testing, and he is getting more power than the procede with the same amount of boost.

cant wait for this to be ready!
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      05-15-2007, 11:40 PM   #7
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Yeah Dave,

As you and I have said before, it's best to wait for the product to come out. I think you will be glad with the RD Quads though.

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      05-16-2007, 06:06 AM   #8
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if i buy a exhaust, i dont look at the gains... i look more for sound and styling!
you dont feel 10hp more on you car...
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      05-16-2007, 07:52 AM   #9
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I like BMW sound and BMW styling.

However, I like additional horsepower even more...
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      05-16-2007, 09:47 PM   #10
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if i buy a exhaust, i dont look at the gains... i look more for sound and styling!
you dont feel 10hp more on you car...


You wont feel much on a NA car but on a FI it makes a big difference
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      05-17-2007, 12:38 AM   #11
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Quote:
Originally Posted by S4to335 View Post
Just dont get the one Eric got...:-)

I have the ultimate racing one...but I have not done any dynos yet.
How do you like it? I am interested in an ultimate racing cat-back. It seems like a middle of the road exhuast compared to others. Which is what I'm after. From the videos I've seen, it sounds perhaps like a louder version of the stock exhaust?
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      05-17-2007, 12:43 AM   #12
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Quote:
Originally Posted by PresaMat View Post
cantc0pe,
Right now I think the highest proven exhaust is the supersprint full exhaust with downpipes. I think it posted 26RWHP. Toss in a procede with that and you will have huge numbers. at least 400rwhp and probably 450RWTQ if not more.
Are you like pulling hp numbers out of your ass or what??
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      05-17-2007, 02:59 AM   #13
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Are you like pulling hp numbers out of your ass or what??
+1, huh? 400 and 450? maybe those numbers at the crank, not at the wheels.
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      05-17-2007, 01:49 PM   #14
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+1, huh? 400 and 450? maybe those numbers at the crank, not at the wheels.
lol no shit

very optimistic number too
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      05-17-2007, 03:21 PM   #15
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Quote:
Originally Posted by RokX View Post
How do you like it? I am interested in an ultimate racing cat-back. It seems like a middle of the road exhuast compared to others. Which is what I'm after. From the videos I've seen, it sounds perhaps like a louder version of the stock exhaust?
Probably the nicest sounding exhaust on the market. But then again, I am biased

Not too shabby on the dyno numbers either.



Good gains throughout the entire powerband with no other mods. Just bolt-on and go!

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      05-17-2007, 03:49 PM   #16
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Quote:
Originally Posted by SoCal335i View Post
Are you like pulling hp numbers out of your ass or what??
Lets see.. My 335i put down 350RWHP and 400RWTQ. With JUST procede. Someone I know has full downpipe/exhaust. He says its about 30-40hp which I wouldnt doubt. Add in a custom stage 1 procede map and 400RWHP isnt unlikely.
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      05-17-2007, 04:17 PM   #17
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Any info/pics on the downpipes/exhaust? Where are the cats? Thanks
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      05-17-2007, 11:19 PM   #18
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Any info/pics on the downpipes/exhaust? Where are the cats? Thanks
Ask schnied... he is the one with the downpipes. As far as I know it is not running any cats.

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      06-13-2007, 11:17 PM   #19
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Ask schnied... he is the one with the downpipes. As far as I know it is not running any cats.

Mat
what size is optimal for the 335? 3" or something smaller?
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      06-14-2007, 12:43 PM   #20
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what size is optimal for the 335? 3" or something smaller?
2.5" will be fine.
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      06-14-2007, 01:38 PM   #21
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Quote:
Originally Posted by PresaMat View Post
Lets see.. My 335i put down 350RWHP and 400RWTQ. With JUST procede. Someone I know has full downpipe/exhaust. He says its about 30-40hp which I wouldnt doubt. Add in a custom stage 1 procede map and 400RWHP isnt unlikely.
Post your dyno sheet...
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      06-14-2007, 03:02 PM   #22
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shiv's procede v2.0 put down 376 to the wheels thats with his cat back and 405wtq.. when i replaced my downpipe and went catless on my sti and got it tuned i gained close to 26whp more. then just stock with a tune.. and the bmw downpipes are much more restrictive then my sti's, just take a look there right off the turbos.. its like a bottleneck..
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