well for a while my gas milage had been going down and i changed almost everything in the fuel suply and ignition system a new rsr exaust and still only 20 mpg highway
so i ordered a test pitp thinking mybe my cat was pugged. i notice a considerable diferance in the pick up on my car.
sound clip with stock cat. notice the smoke
sound clip rsr cat back with test pipe. notice the smoke is gone after the test pitpe is installed
Linear Mode
