I am driving a Mazda 6 V6 sport. It's a leas car and my leas have come to the end soon!! I've brought the following performance parts for resale!! I've got an AEM Cold air intake system sell for $150(used for a year); it could gain 5 to 10 HPs. A set of 4 tanabe lower springs sell for $250(used for 6 month), lower 1.5inch in the front, and 1.3inch at the rear. Injen Cat-back exhaust system for sell at $1000(used for 2 month), it could gain 14 HPs, stainless steel hot looking! Willing to sell these parts together for $1350. If you interested please e-mail me [email protected]. All price are in canadian currency.