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Down piped installed today
installed my down pipe yesterday with the help of a lift took me 2 hours plus.
2012 335i coupe m spec auto n55
exhaust is much louder and has a bit more power I am a happy man!
I did have something weird happen. I was rolling along about 40 and punched it and the car down shifted jerked real hard almost like a bang then limp mode. I restarted the car and its been fine for the past 300 miles driven hard. I have a Jb4 and intake I run map 5. Could this have something to do with lack of fuel? Or does the car need time to adapt to the down pipe? thanks
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