440 under car headers need advice.

PoisonDart74 said

Bulls**t. Do you have a flow bench to prove it? Pipes only flow as much as their narrowest point, which happens to be the same spot on all of them; the flange, and the 90* bend there-after.

PS: What the hell do you need 600HP on the street for? Where are you going to responsibly let that loose? C'mon man, be realistic.

Keep it neat on the street, fast on the track.

Click to expand...

The info is right on schumachers site. Their headers are .4 tenths sower than the TTI's in a head to head comparison.

WHy do you need 600hp on the street. Why does a new hellcat need 707hp or a new GT500 need 650hp? This is a recreational hobby. It's kind of like build your own sundae. Mild to wild it's the owners choice which way to go. Also some of us do like to have some strip time.