ok im looking at buying new headers and a radiator for my car, for the headers im looking at shorty equal length bbk's i want to kno if ill get a noticable boost and how will it sound with my flowmaster 40s from the cats back 2 and a half inch pipes

 

I have the BBK equals and have been pleased with how they've held up. As for horsepower, I did not notice much. Although the throttle response felt better(less lag). The loudness of the exhaust did not change. However, it added more of a crisp tone.

 

After putting non equal headers and full non cat 2.5 exhaust it actually felt like I lost torque.Stock engine.

 

i noticed an increase in the loudness when i added equal length headers to mine