98 Intake Vs. 01-up
Lift LS1 LS6
.100 65.14 65.6
.200 133.1 133.5
.300 184.3 189.9
.400 217.1 227.75
.450 229.2 241.3
.500 236.3 250.2
.550 236.3 247.5
.600 235.7 245.18
As you can see the LS6 is better. But the numbers are real low when the intake manifold is on.
The LS6 intake can be worth up to 20+rwhp on a heads and cam car and about 4-8rwhp on a bolt on car.





