Originally Posted by one more chance
, HyTech, SMSP just to name a few, fork out millions of dollars each year on their R&D and the results definitely do speak for themselves. As far as headers are concerned, it is well documented that changing the existing exhaust system on a Honda may actually detune your honda, however if done correctly with the right products, it will actually give u a healthy gain in HP!
In my opinion, the best header for B series honda engines are HyTech headers. The quality is of exceptional standard and the design is close to perfect! The results will see at least a 10% increase in power through-out the rev-range.