Headers vs. Exhaust Manifolds ~ 'Let The Debate Begin'

roccodart440 said
Make a 1/4 pass at 12.00 vs. 11.85 and let me know if you can feel the difference.

Short of the long.. yes you'll feel it.

Agreed.

Adding 15hp to a 13.00/103 mph 3000# car will get you to ~12.80/105ish

It will definitely be noticed.