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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 > To Down Pipe or not to Down Pipe



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      01-27-2013, 04:40 PM   #45
GOTMH8N
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Anyone know where the best place is to buy new gaskets? Are they expensive from the dealer?
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      01-27-2013, 04:48 PM   #46
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they're cheaper than the AR Bomb Proof gaskets and just as good from many testimonials on this site. I went with the AR gasket set, but if I had it to do over again I'd get the oem replacements.
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      01-27-2013, 07:37 PM   #47
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Get them. You'll love the difference in performance and sound. And if your under 82k waste gate rattle is covered and knauz is cool with mods
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      01-27-2013, 07:52 PM   #48
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Quote:
Originally Posted by GOTMH8N View Post
Anyone know where the best place is to buy new gaskets? Are they expensive from the dealer?
Hey, just an FYI, I reused my stock Gaskets without issue.
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      01-28-2013, 03:31 PM   #49
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Originally Posted by Gugs View Post
Had my turbos replaced while FBO. So ur dp theory is bunked. Just get dp and move on
At what dealer?
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      01-28-2013, 10:45 PM   #50
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Do I need both top and bottom gaskets?

#3 and 6
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      01-29-2013, 08:17 AM   #51
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no, only #6 and the accompanying hardware (if don't want to use the existing hardware).
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      01-29-2013, 01:58 PM   #52
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Quote:
Originally Posted by GOTMH8N
Do I need both top and bottom gaskets?

#3 and 6
i didnt even see a gasket on my turbo end when i installed mine....
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      01-29-2013, 02:36 PM   #53
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Haha well alright then!
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      01-29-2013, 04:06 PM   #54
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not to hijack but could someone point me to a dyno comparison of stock vs. aftermarket dps?i have read more /better turbo spooling ,quicker response, and the hp gains are comparable to a good e85 mix. don't get me wrong these are all good improvements but would like to see independent dyno .before and after.
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      01-29-2013, 04:36 PM   #55
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Quote:
Originally Posted by rays 335i View Post
not to hijack but could someone point me to a dyno comparison of stock vs. aftermarket dps?i have read more /better turbo spooling ,quicker response, and the hp gains are comparable to a good e85 mix. don't get me wrong these are all good improvements but would like to see independent dyno .before and after.
There's really no point in getting downpipes on a stock vehicle. You will find nearly 60WHP just getting a tune and keeping everything else stock.

Downpipes mated with a tune can yield about 20WHP on top of the gains from the tune. (maybe even a little more).
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