Really the singles are all pretty close. Some make a little better power "here" and others make a little more "there". What I can tell you is the TBR is top notch quality, eye candy...and IMO the best looking single out there. Sounds really throtty. It doesnt hit the rear calipar like some other exhausts.
the power bomb is a nice unit and is said to help out a little everywhere. I wouldnt know as I put on all my stuff at once. Fitment is just fine...bolts right up! :thumbsup: