Originally Posted by SP00NFed
money wise though the test pipe is a lot cheaper and more gain for the buck
Just because the dyno graph showed a increase in power doesn't mean squat. Did you notice the torque numbers? There's other probable causes to why it showed a increase, like the rollers spinning at variable speeds. The testpipe didn't outperform the high flow cat anywhere on that graph.
You got alot to learn Danny. :doh: