Absolutely the best exhaust system for your money. I seen power Gaines through the whole power curve, also comes with a spark arrester insert, fit and finish was excellent. I would definitely buy this exhaust system for any of my other bikes. The motor sport team that I talk to over the phone also was very knowledgeable about the product that I wanted and I left feeling taken care of thanks so much.
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Fit and finish is outstanding and second only to how well this pipe performs. I installed this on my 2007 YZ450F and am extremely happy with the sound, performance and looks of this pipe. Install was a breeze and it looks awesome. Performance is second to none, I would highly recommend this exhaust to anyone looking for increased performance at a great price. You won't be disappointed!
i put this pipe on my 2016 yz450fx and now touching the throttle is like hitting a nitrous button, love it
i've been using Dr. D's in every bike that i have and i'm comfortable with it . for me and my friends its Dr. D or nothing .
it is causing a lot problems with my jetting even after going to Dr. D's website. Still not able to get it to stop back firing all because I changed to this pipe.