Hey y'all I'm getting straight pipes put in sometime next month. I'm getting them from the cat back 2, 2 1/2 in pipes with no mufflers. Will this effect my gas mileage, torque, or horsepower enough for me to notice?
A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!