10-21-2020, 08:59 AM | #1 |
Dj
2
Rep 5
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Passenger Side Black smoke exhaust
Hey All I hope every body is fine and safe...
So i picked up a nice 2011 X5M in a supper condition except for the black smoke which as far as i knew it was a bad injector no.4, Did that changed it and along i changed a full spark plugs set and a set of coils, the car performed much better and feels healthier. Sadly the black smoke is still there when i put my foot down and I get a big puff as i change gears on woot. Any suggestions? If its cats should i get 2 performance downpipes |
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