Jsailor24

Am considering muffler elims but dont want to loose power-- do they reduce torque? Why?

Mr Mojo

My guess is less backpressure. Mackey always told me our cars were engineered to have a certain amount of backpressure.
I definitely lost horsepower going by the numbers at the track. Don't know about a torque loss, but the loss was worth the better sound and since I only lost 1-1.5 mph in the 1/4 I can live with it since I'm still turning the same times.

92corvette

Check here for a recent discussion:
http://forums.corvetteforum.com/zerothread?id=188182

GRX

If you reduce backpressure you might want to enrichen the mixture a tad with a custom chip.

scorp508

Hard to say I think. Removing my main cat definitely gave me a power boost. Sure it isn't the mufflers, but it is/was a main flow restraint in the system.