svt4cobra6
Registered User
I have an 03 cobra that is going off of warranty in a few months, 64k miles and I drive it about 25 miles a day. Just wondering if a chip and pulley would effect gas mileage when driven easy and are there too many miles on the motor now, seems to run just like new. Also I would get the heat exchanger and most likely go with a 2.93 pulley.