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Dr. D Complete Exhaust With Spark Arrestor

Retail: $579.99 - $619.99
$519.99 - $559.99
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Dr. D Complete Exhaust With Spark Arrestor

Product Description

The unique attributes of the Dr. D's step system allow for a more efficient intake stroke. It does this by resisting the reflective exhaust pulse during the intake / exhaust overlap. In plain language, the carefully tuned steps in the system allow for a lower net cylinder pressure, which gives a crisper throttle response from bottom to top. The key advantage of the Step System is improved low end response with substantial gain in the mid and top ranges. Dyno tests show a 3.6 horsepower increase at peak.

The Dr. D Spark Arrestor System is designed for riders who are looking for the same extraordinary performance characteristics of the Dr. D Race System, but also need to quickly adapt the system to meet USFS spark arrestor and/or noise level requirements.

  • The DR. D complete exhaust system is birthed from Doug Dubach, who brings years of experience to the motocross and supercross scene.
  • DR. D constructed this complete exhaust system with an aluminum muffler in conjunction with a magnesium end cap to reduce weight and stainless steel head and mid pipe to provide long lasting durability.
  • DR. D welds the stainless steel mid pipe to the aluminum muffler to eliminate weak points and excessive weight in the exhaust system that spring connections can cause.
  • To create a solid mounting point DR. D uses a CNC billet hanger on the extruded aluminum muffler sleeve.
  • The magnesium end cap on the DR. D complete exhaust system is easily removable to access the spark arrestor screen. With the spark arrestor installed the exhaust system meets USFS approval.
  • Repacking the DR. D aluminum muffler is simple with the removable bolts on the lower end of the sleeve.
  • The DR. D complete exhaust system includes: aluminum muffler with stainless steel mid pipe, stainless steel head pipe, USFS-approved spark arrestor.
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(21)
4.7 out of 5 stars
5 star   16
4 star   3
3 star   2
2 star 0
1 star 0
Rudyracing Location: Florida, USA
1-10 of 21
Overall
Location: Florida, USA
EXHAUST

Pipe fit perfect and sounds great.

Overall
Location: milford, nj
Nice exhaust

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

Overall
Good stuff

Overall
Location: Escalon, CA
The best bang for your buck!!!

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!

Overall
Location: Yuma, AZ
Great Exhaust

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!!

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Location: Hudson Falls,NY
Great Buy

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!

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Top 250 Contributor
Location: jackson, ca
Pro circuit

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

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Location: Dallas, TX
Nice system

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.

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Location: Bremerton, WA

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.

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Top 100 Contributor
Location: Reno NV
#1 pipe

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

1-10 of 21
Total Questions (13)
Questions with answers:
  13
Questions without answers:
0
Hp?...
alpha
1-10 of 13
Pedro 2 months 7 days ago Location: UK
Jetting?
I have fitted to WR250F, 2010 and it is bogging down when I snap the throttle back. Please could you advise. Is jetting a solution and if so, could you advise the settings. Thanks Pete
Expert MotoSport Staff
2 months 6 days ago Location: Portland, OR, USA
It sounds like you do need to re-jet your bike to correct that low end bog. More than likely you will need to change the pilot jet and possibly the main as well. I can't really recommend specific settings as it would depend on how your bike is jetted now as well as your location (altitude/temperature). I would recommend looking at the JD Jet Kit for your bike as it would come with instructions and recommendations to help you tune your carburetor perfectly.
REATOR 4 months 12 days ago
Will DRD mate with megabomb header (wr250r)?
Will DRD pipe mate with megabomb header (wr250r)?
MotoSport Staff Expert
4 months ago
This DR. D muffler will really only work with the DR. D headpipe that it comes with. If you already have the FMF megabomb Head pipe on your bike I would recommend looking at the FMF slip on exhaust systems as they would fit up perfectly with that head pipe.
dantinne Over 4 years ago
Jetting?
should i go bigger or smaller in jetting from my stock pipe on a 2008 yz450f? if so what size and which jets
MotoSport Staff
Over 3 years ago Location: P+RTLAND
Unfortunately I can not recommend any jetting specs since there are too many variables that come into play. The best thing to do is install pipe and then check your plug. That will let you know what you should do with your jetting. Worst case scenario, contact a local shop for recommendations.
ESPOSITO Over 4 years ago
I dont know witch is better for my 2008 yz250f DRD or FMF?
MotoSport Staff Expert
Over 4 years ago
we really cant reccomend what is best for you. just do a little research on the two and make your choice. we all like something differnet. so it makes it very hard to reccomend
Over 3 years ago
drd is one of the best pipes you can get for your yzf it helps alot with your low to mid range, fmf isn't bad either but if you get fmf you just about have to get the powerbomb header plus it just about only helps with your mid range to top end, hope this helped
Top 1000 Contributor
TxMotoMan Over 4 years ago
How many do I need...?
I have a 2008 Honda CRF250R (which has dual pipes) so do I need to buy 2 kits or do I just buy one and plug the other one? I assume I need two but I read one of the other reviews where a guy went from 2 to 1 but I think it was on a yamaha. I'm new to the sport so I know this probably sounds like a silly question.
Expert MotoSport Staff
Over 4 years ago Location: Portland, OR
Unfortunately DR.D only offer single exhaust systems for your Honda. Basically you will convert your duals into a single pipe with this system. If you're looking for dual exhaust, take a look a the Pro Circuit Exhaust Systems, they offer them in duals.
alpha Over 4 years ago
Hp?
which pipe would have more power gains the DR.D system or the FMF 4.1 with the megabomb?
Expert MotoSport Staff
Over 4 years ago Location: Portland, OR
That would be determined by the type of bike.
blmx160 Over 4 years ago
Will this require me to re-map my '08 RMZ450?
MotoSport Staff Expert
Over 4 years ago Location: Portland, OR
You might want to reference your service manual to see what is required switching out the exhaust.
Top 250 Contributor
Over 3 years ago Location: jackson, ca
if your bike is efi it should do it on its own, thats the advantage on efi, not having to mess with jets, although u have a suzuki so u probably will!!!!
froggy Over 5 years ago
Does this exhaust compare to fmf or yoshi?
Over 5 years ago Location: PA
yes
Culti Over 5 years ago
Is the spark arrestor removable?
MotoSport Staff Expert
Over 5 years ago
Yes the screen is removable.
seanjonyamaha Over 5 years ago Location: cameron park ca
Can you use a quiter core for this?
does it meet 94db reading
Over 5 years ago
i use this pipe and it does meet the 94db readings
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