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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 > 335xi VRSF DP - Tips on front dp?



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      11-22-2015, 11:21 PM   #1
dawhiz
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335xi VRSF DP - Tips on front dp?

Hi, I was wondering if anyone had any tips on getting the front dp in. It seems to be a bit of a puzzle. I know they fit as i've done this once before out of luck and a lot of time and this time around and i'm on the lot of time still but no luck yet.

Does anyone have any tips on orientation, ways you pull the dp, etc to get it to fit? Rear one in but clamp loose? Do you angle it in from the corner below and try to get it up? Do you pull it a certain way and then move the rear one around? Keep o2 in the front rear do or leave it out? Can you swap it in after dp is up?

I'm going to try again soon but can't seem to replicate the first time yet. Should it be this hard to get the front one in on the xi? I read that they've never had a revision to it & it has fit once so I know it's possible.

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      11-23-2015, 02:41 AM   #2
adidoman
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Putting the dps in was kinda a PIA. Mine are the AR and I still had trouble. I had to attach the subframe again and drop it again to get both pipes attached. Make sure the engine doesn't move when dropping it because that messes with that 1/8th inch clearance you need to get the pipe to fit in
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      11-23-2015, 06:40 AM   #3
ajsalida
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I don't think it's possible to install them without dropping the subframe. I installed VRSF DP's on my XI, and have adjusted them couple of times, no way I can see to do it without dropping. However once it is dropped there were no issues. Tight fit sure but nothing crazy. It has been a while but IIRC I did not seat either into the V band before having them both sort of in position, then seated them loosely, then clocked everything around to mate with the exhaust, then tightened down.

The hanger for the exhaust immediately downstream has to be off and you have to be able to move it (the two exhaust pipes) around some. Final step is to tighten down that hanger.

Last edited by ajsalida; 11-23-2015 at 06:48 AM..
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