Question about 1994 Chevrolet S-10
I replaced my cat with a high flow cat and flowmaster 40 series exhaust about 4 years ago now. good set up on my 2.2L 4cyl 5spd. sounds excellent. the only problem, since it is a high flow cat and free flowing exhaust, there is little if any back pressure, and so i really dont have that much torque anymore. it actually made my truck slower on the bottom end. not that the 2.2L is a speed demon. lol. you could probably get away with a test pipe that is still the same size as the stock pipe and it will sound gread. as far as gas mileage, i doubt it will do anything to help. my exhaust didnt help my gas mileage any. the only thing ive noticed that got me more mileage is replacing the stock air filter with a drop in K&N filter. i got about 5 more miles a gallon just by doing that. good luck.
Posted on Sep 05, 2008
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