I get people like that all the time and I am in the same area as you. They think their car is the fastest thing on 4 wheels just because it has intake, header and exhaust. Little do they know that if I decided to take on their "challenge", they would soon realize I have a 250 whp motor powering my stock looking car.

Those people just bug me. I just point and laugh and then keep driving because I know I have nothing to prove to them.