I have owned my 2010 E92 335i since I bought it new. Keep it well maintained by a trusted indy BMW mechanic and I have not had any issues with misfirings even with the recent mods (K&N filter swap, Cobb tune stage 2, BMW PE) I added back in 2016.
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2010 BMW 335i: Monaco blue metallic/Premium+Sport Auto-Steptronic, BMW PE, Cobb Stage 2
2005 Mustang GT: Redfire metallic/5-spd/Ford Racing (Axle backs, silver Bullitt wheels)/K&N CAI/ Diablo Sport Predator Tuner
1997 Toyota Corolla
1983 Mercedes Benz 380SL Roadster
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