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2010 2011 BMW 5 Series Forum F10 BMW Valvetronic exhaust and downpipe opinion |
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04-12-2021, 08:03 PM | #1 |
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BMW Valvetronic exhaust and downpipe opinion
Hello Everyone,
I am looking for some opinions of people who have a downpipe of their F10 535i. I currently have Valvetronic designs exhaust mufflers and they are great! I am looking to add a catless downpipe but I am worried it will drone with the valves shut! Anyone that has a downpipe and/or an aftermarket exhaust too please chime in. Thank you, Evan |
04-13-2021, 03:42 PM | #2 |
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I have dual eBay valvetronic-style mufflers on my 535, and I run a catless downpipe. IMO, these mufflers closed are quieter than when I was all stock lol (so to answer your question, no I have no drone at all when valves closed).
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04-16-2021, 01:22 PM | #3 |
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here's mine with Meisterschaft's and VRSF catless dp
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04-16-2021, 04:29 PM | #4 |
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Do you have any videos of it valves open and closed? How is the smell of the catless DP?
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04-17-2021, 01:19 PM | #5 | |
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Quote:
That is on cold start, cold morning, on the day I picked it up at the shop. Nowadays you can't see the flap because of all the black in there lol. It's on electric motors so it's very fast-reacting. It stinks if you run full gasoline. But I typically run an E30 fuel mix and corresponding tune. That 30% E content significantly cuts down the stench of gasoline. Still not pleasant as running full E85, but this is a good compromise for me lol
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11' M-sport- 371WHP - 478WTQ on stock PWG E50 TunedbyShoup // 386WHP - 429WTQ on Shuenk N55+ with ultra-conservative 91 Octane tune // Starting full-range flexfuel tuning in Spring '24 |
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