@e92mSport Hmm. Lets think about what you said.. Im assuming you mean in your last sentence that the outcome would be different If we put the same amount of money into the 335i as the c55 had in it at the time of the run. It had K&N DROP IN FILTERS( Still stock airbox).. Say they are about $50 If...
I would but I already sold the car. It wasnt to different than the stock. Behind the differential cooling fin was the X pipe. The X pipe was placed were the secondary cats were.. This is a legal mod and without the secondary cats it WILL still past smog in cali!
@e92mSport Hmm. Lets think about what you said.. Im assuming you mean in your last sentence that the outcome would be different If we put the same amount of money into the 335i as the c55 had in it at the time of the run. It had K&N DROP IN FILTERS( Still stock airbox).. Say they are about $50 If...