Best performance upgrades for the money.

[positas123]

I bought my 2005 330i just last November and have been enjoying it immensely as an everyday driver. I’m a graduate student and don’t have too much money to throw at it, but I have increased the performance with a K&N filter and Signature Motoring heat shield (signaturemotoring.com). All in all this kit was less than $180.00 and gave me a whopping 9.3 HP/5ft/lb torque increase on the dyno. MPG increased 1.6MPG judged by 238 mixed miles since install. The noise is the same at regular RPMs, the there is a fanstastic induction sound at higher RPMs. Very cool.