Originally Posted by
velociabstract
Your in the ball park with your guess. My dyno numbers were around 16 hp with the downpipes closed and 26 hp with them open. My long tubes were supposed to make 30 hp and made 4 hp over the open downpipes. Hummm ….. 26 + 4 = 30 …… Advertising is funny that way.
Les
You know, I've never really thought about it that way, but the LTHs probably would have given you the advertised 30RWHP if you didn't already have the downpipes installed.
Seems the biggest single choke-point is the cats (obviously).
I'm curious to see what kind of power the Needswings headers would produce with an e-cutout installed a foot or so downstream. For $1,300, you would theoretically have the same HP as a LTH/cutout setup
