Hi im selling a straight pipe exhaust system with an actual carbon fiber diffuser that i had for about 3 months. Its a very nice package with a unique powerful sound. Im getting rid of the car so im looking to sell it. My asking price is $500 but we can negotiate on the price. Please give me a call at 818-484-1074 or 818-574-9908 feel free to call at any time. If local i will also deliver it to you no charge.