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Originally Posted by bluem2
Hi Andrew I have the same set up, Fabspeed downpipe with cat and the Remus exhaust. It was installed 2 weeks ago and I think the sound is as good as a M2 can get however since the install I have noticed a few issues. My car is not tuned and I m far from an expert as my only intention was to make it sound nicer whilst keeping everything else stock.
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My car is not tuned either. I don't want to lose my warranty for a few extra HP/TQ. Not worth it to me.
Quote:
Originally Posted by bluem2
I noticed at low speeds especially during traffic or at the lights there is some sort of vibration , a bit like tin cans rubbing, it comes and goes but usually very evident when the car is stationary or just rolling
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This isn't normal. Either your installer installed the exhaust incorrectly and there is contact happening that needs to be fixed or you are having an unrelated issue with the car such as the soda can noise:
http://f87.bimmerpost.com/forums/sho...php?p=20661575
It's hard to be certain just from your written description. I would bring the car back to the installer and tell them to adjust it. If that doesn't fix it take it to the dealer and tell them about the noises.
Quote:
Originally Posted by bluem2
Second is that when going up slight hill at 90-110 kph (50-65 mph) when the car is in high gear IE 6 th or 7 th, the car vibrates and shakes as if it is in the wrong gear. This never happens with the stock exhaust or with the only the downpipe. Is it possible that the car lost torque? Or do I need a tune ?
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I have a 6MT so our gearing is different, but It sounds like you are in too high of a gear going up hill. The easy solution would be just to downshift a gear. The car should gain power after adding the exhaust, It shouldn't be losing any. A tune can give you more power but you'll also be kissing your warranty goodbye so that's really up to you. I've never experienced any vibration or shaking going uphill so i'm not sure what to tell you other than to downshift.
Quote:
Originally Posted by bluem2
Btw do you feel that the car is a bit too crazy at start up as it sets off just about every car alarm in the apartment car park
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Yes, the car is very loud at cold start. If you want to quiet it down you can flash/bench tune the car and have the cold start procedure turned off. That will solve the noise issue.