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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 system closest to sti



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      11-11-2013, 07:21 AM   #23
J38
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Quote:
Originally Posted by E90_boostjunky View Post
You should hear my VRSF exhaust I just installed. I have an exhaust leak because the "bomb proof gaskets" I bought like 2 months ago were literally demolished. While I'm waiting on new gaskets. My car sounds almost like my buddies sti.
Hmm... Yeah maybe the op could get there with a custom X-pipe, muffler delete, with downward dumps immediately after the x.
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      11-11-2013, 08:21 AM   #24
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Originally Posted by tommyboy0120 View Post
put sti motor in your bmw
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      11-11-2013, 09:29 AM   #25
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Wow, lotta hate for the Subaru boxer-4, haha.

I had a 2009 WRX with a catback on it a few years back and loved the sound! Granted, I had the "SPT" exhaust from Subaru themselves so it was more subdued than many other aftermarket options you'll find. If you ask me, there aren't many four-cylinder motors that sound better! I'd certainly rather have the car sound closer to Subaru's turbo H4 than what BMW has for the turbo I4 now. I've heard BMW has made some improvements though, and that's great! I haven't gotten the chance to hear these reported changes to the sound though.

The motors are actually quite tunable, lots of options out there. "Stage 2" (turboback exhaust + tune) on a regular WRX motor would put people around 300ish HP at the crank pretty easily if not at least the high 200s at a minimum, even with the stock unequal length headers.

I get it though, everyone has their own preferences, and that's fine too, haha.

I would agree with others though, please do not ever consider, much less actually go through with, putting the Subaru boxer motor (even if it's from an STI) in your Bimmer. There's a certain character to each the car and the motor and I don't think they'd be a good fit. Either are great on their own though and with their respective chassis/engines.
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      11-11-2013, 09:57 AM   #26
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FYI, our cars use manifolds with the turbine housing built into the manifold. Good luck finding a replacement. There are few out there but you will never get the boxer sound.

HOwever you do have one of the quietest exhuasts. I suggest getting catless downpipes and a louder exhuast. You will soon forget about the greatness of the boxer engines. I miss my STI. but I have learned to love my 335i with no mufflers....
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      11-11-2013, 09:58 AM   #27
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Remove one of your ignition coils...
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      11-11-2013, 09:58 AM   #28
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I have an 04 sti and an N55 335i. My 335i sounds much better than the obnoxious subie.
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      11-11-2013, 10:02 AM   #29
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Quote:
Originally Posted by xzibit a View Post
FYI, our cars use manifolds with the turbine housing built into the manifold. Good luck finding a replacement. There are few out there but you will never get the boxer sound.
^This. if you really wanted to reroute the exhaust primaries, you'd need to make a completely custom manifold. which would require new turbos. So you are looking at a lot of money there. And it still won't sound like a subaru.

Quote:
I suggest getting catless downpipes and a louder exhuast. You will soon forget about the greatness of the boxer engines. I miss my STI. but I have learned to love my 335i with no mufflers....
yeah, your best bet it so change/remove the cats and try different exhaust setups.
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      11-11-2013, 05:00 PM   #30
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Originally Posted by Gizm0 View Post
Remove one of your ignition coils...
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      11-11-2013, 10:41 PM   #31
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Quote:
Originally Posted by Gizm0 View Post
Remove one of your ignition coils...
THATS good. lol
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      11-12-2013, 02:56 AM   #32
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Subarus are a total different breed of engine I think it'd be hard to match it! I love Subaru's and my BMW is the only other brand of car i've owned. I'd rather have my 335i, sound how it does, my Subi has it's own sound which I love... But yea both boxers & straight 6's tickle my ear drums.
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