Originally Posted by Majestik

Advice pls ppl. As you know, I've got fi bits on order. Im considering cancelling my hfc-pipes because of the amount of drone/hiss and EPA issues. I quite enjoy the way the 370Z is quietish until you step on it and am worried that the hfc-pipes will make me
kiss that quietishness away.

My question is how many rwkw will I actually lose with ONLY the cbe and your opinion if the amount of rwkw would noticeable.

Ray at Art tune - where Erfan and waqar got their cbe/hfc done - showed me erfan's dyno comparison between with hfc (berk) and without with his fi cbe. He told me that it's only a 4rwkw loss... Is this correct as Chipmunk aka Evan, says the difference should be "Way" more.

Basically - Is the power gain from the hfc-pipes worth the drone/hiss/EPA issues for a daily driven car.