Dyno results of full exhaust vs stock?

[Jake Raby]

According to the system purchased you may make LESS power than stock. Very few of these systems do more than make noise, reduce weight, and look cool. That eye candy and ear candy is what sells them.

As part of my research I have tested every system I could get my hands on, back to back on stock and altered engines. I haven't seen much that impressed me at all, and some systems that cost 3K or more can cost you 27RWHP.

Believe nothing that you hear and only 1/2 of what you see, the advertisements are usually very, very far from reality.