Great exhaust system for trails or track riding. And it looks really good in person too. Great horsepower!
Dr. D Complete Exhaust With Spark Arrestor
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Pipe fit perfect and sounds great.
i have this on my 07 kx250f with an athena big bore kit. definitely give it an awesome sound and has great throttle response too
I put this exhaust system on my 09 YZ450F, and it felt like my bike woke up from the dead. Not only does this system look cool and sound good, but it also made the throttle response more snappy. I will highly recomend this system to all of my friends!
After running another brand complete exhaust for a couple years i decided to make the switch to the Dr.D I couldnt pass up the 50% off at motosport. I noticed gaines from bottom mid and top. Very noticeable compared to the other brand. It seemed snappier and had more rev on top. Definitely recommend Dr.D!!
i purchased this exhaust last year for my '09 crf 250r and it def woke up the ole girl! this pipe hits hard low and carries through the top! plus sounds amazing! the only thing is the head pipe is kinda weak mine was dimpled a quarter inch from a little rock kicked up from my friends bike, other than that i would def but this system again!
i bought this pipe about 2 weeks ago, i put 10 hours on it, and it was already blowing packing like it was confetti. before this pipe i had a pro circuit slip on t4 and that slip on made more power then this full exhaust. looks wise i like this pipe but to change the oil filter on 06-09 yamaha yz450's you have to loosen the header bolts because is has such a low bend, i would recommend pro circuit over this pipe any day, but for a full exhaust 500 bucks is not to bad
This is a nice less expensive alternative to the costly twin pipes on the crf250r. The only problem I had was with installation. The center bolt boss did not line up with the hole in the subframe. Was off 1/16th of an inch. I had to slot the silencer bracket a little more to make it work.
I bought this pipe for my 07' CRF450R in anticipation that it would smooth the power like the Dr D of past. WOW was I wrong, hold on to your panties, mid to top was out of this world, not what I was looking for but not a negative. I give this pipe bad marks in the Durability category, the rear mount broke, which is common but I never let the bolts get loose and there was less than 15 hours on this pipe. That being said, I am not much past Junior local level and nowhere near hard core. If just the mount broke I would be okay with it but the entire core was ruined, I'll replace it with a disposable FMF.
this is the best pipe ever i dont know why everyone choses FMF over DRD i think DRD is way better than FMF
i put one on my 2008 YZ250F it added so much power and looks awsome and is really strong i crashed from like a 2 story fall right on to the pipe and there is no dents or even a scratch for that matter BUY ONE its well worth the money
Great pipe, added lots of low end power, sounds great, and it is us forest service approved.
best exhaust ive ever riden with! i will not be going anywhere else for a system! Doug Dubach knows his Yami's well! Dr.D has the best customer service around and very nice people! great power gains too! very very impressed! well well worth the money! unique "D" shape helps so tire scuffing isnt a big problem! holds up well and looks great year after year!
Easy install and great low, mid range boost. Built to go the distance and good looks too.
This pipe brought my 07 crf250r to life. Ditch the duels and buy this bugger! twin pipes are a gimmik and this pipe is a steal at 5bills! The pro's only run duels because they have 2!!!!!!
This pipe really wakes up our yz250f's. We are so impressed with them that I just ordered on for the 450f and am sure that we won't be dissapointed. Only down side is that they are a little louder than fmf or pro circut if that is a concern for you.
This pipe is definitely worth the buy. With the stock exhaust on my rmz250 i could hammer the throttle in second without lifting up the front end. With this pipe, it brought the front end up about 6 in. I still have to get the carb. rejetted and i can't wait to feel the power afterwards!!
This Dr. D exhaust is much cheaper than other exhaust systems and it still adds lots of power to the bike. I use Dr. D exhaust on my bike and I can tell a huge difference from the stock exhaust.
i purchased this exhuast for my 2008 crf450 and am really happy about the performace bottom to mid are noticably more powerfull. The top end performance feels about the same, the construction quality is outstanding and the installation took about 15 minutes.
This pipe really brought my YZ 250F to life. It adds all around great power. It sounds great, and it revs much faster. The best thing overall it the price.
Dirt Bike / ATV: 1-888-676-8853
If you're looking for dual exhaust, take a look a the Pro Circuit Exhaust Systems, they offer them in duals.