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2010 2011 BMW 5 Series Forum F10 Dinan Stage 1 F10 550i xDrive 1/4 Run |
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11-28-2011, 05:27 PM | #46 | |
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Im not looking for a tune for the flaps anymore. I ended up removing the exhaust flaps because they leaked. The leaking exhaust flaps were causing the loss of backpressure which was affecting the spool up time on the turbos. The car felt so much slower with the flaps leaking. The reaction time from the time you stepped on the gas pedal and the car actually starting to move was dramatically increased. I ended up replacing the piping from the first set of cats off the downpipe and deleting the second set of cats. The car fells much faster now and the reaction time is back to the way it was. Heres a pic. The Dinan Tune is completly worth the money and once they come out with an airbox for the car, it will add a good amount of HP to the current tune. An aftermarket exhaust system would also help alot and a tune is really not needed for that either. Im planning on replacing the resonator with an x-pipe this weekend to try to get a little bit louder exhaust sound out of the car. I really dont want to spend $3-4K on an exhaust system nor do I want a loud exhaust all the time. |
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01-08-2014, 01:47 PM | #47 |
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womp womp looks like Dinan can now take a rest with the F10 550 cars BMS easily outperforms it for fraction of the price.
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01-08-2014, 05:21 PM | #48 |
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01-08-2014, 07:09 PM | #49 | |
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If it's even close, will be very impressive considering the $ |
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01-09-2014, 12:36 AM | #51 |
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i would think none x drive would have higher trap speed but would struggle of the line...
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01-09-2014, 06:58 AM | #52 |
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Agreed. I've yet to see a RWD with BMS 1/4 mile times. I ran 12.7 112 on my 550i with Dinan stage 2 with a 2.1 60". I'd be curious to see what sort of times and traps BMS on RWD does for comparison.
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01-09-2014, 08:19 AM | #53 |
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ill try to rule my friend in to next 1/4 event he has identical car to mine but RWD.
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01-09-2014, 06:03 PM | #55 |
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id say 110 trap
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03-24-2020, 02:21 PM | #56 | ||
N63TU king. Quickest 550 ever
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03-08-2022, 10:30 AM | #57 |
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10 years now, but I'll give it a shot. Anyone have any new input on Dinan stage 2 for N63? I actually have had it on my 2013 550 for a couple years now, and it seems intermittent. I don't think it always works. At some point I lost it due to updates from dealer, and so I had it reinstalled by local performance shop. Still not sure if its even there anymore.
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