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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 > Downpipe question plz help



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      04-05-2010, 11:54 AM   #1
Minas335
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Downpipe question plz help

Hi guys I have a question I know this might be a newbi question but I seached and couldnt find anything on this. I want to know if I get lets say the VK downpipes or something simular on the site it said the o2 bug fix or somethin. I know that that's the check engine light fix. So does this mean I dont have to have JB or some kind of a tune so I wont get a CEL come on? Cuz I just want to run downpipes and exhaust or maybe downpipes and muffler delete for a while can I do that with just the o2 fix? and it will not throw off any codes or light?


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      04-05-2010, 11:56 AM   #2
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Yes you can just connect the o2 sims to the stock harness.
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      04-05-2010, 11:57 AM   #3
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Quote:
Originally Posted by Alpine 335i View Post
Yes you can just connect the o2 sims to the stock harness.


Thank you very much.
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      04-05-2010, 11:58 AM   #4
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what do u think I should do DP with HKS replica? 3" all the way or 3" or 2.5" dp with muffler delete?
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      04-05-2010, 12:21 PM   #5
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I think it's really up to you, you may get some drone with dps and muffler delete but you'll get some nice hp gain without spending too much money on a full exhaust set up.
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      04-05-2010, 12:31 PM   #6
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Do u think the top speed or whatever its called the hks replica is a good setup I searched cant find anything good or bad about it. And do u know when the VK 3" exhaust is coming out?
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