big block exhaust

[tirebird]

Steve:
With Hedman long tube headers and the 3" exhaust, the car runs great. I know too much exhaust can reduce low end torque, but I don't see any degradation in my car's performance after putting in the 3" system. I've never dynoed the car, but taking the factory specs., and adding in the headers, the LS-6 is running some where north of 420hp/tq., at the wheels.