Which crf250 exhaust?

[mxxx rrrider]

I've been waiting to see some pipe tests to help me decide which system to get. I can't believe that none of the magazines have done a shootout yet! So, any of you that have changed your exhaust, which system did you go with, and how did it affect the performance? Also, is there a noticeable gain going with a full system vs. a slip-on?

[Doom Crew]

I just got the White Brothers Pro Carbon exhaust and i love. It gave me great bottom end and overall power, its a little exspensive but all worth it.

Good Luck with your decision!

[mxxx rrrider]

I was thinking about the aluminum can instead of the carbon fiber. The are supposed to be the same in performance.

[Doom Crew]

The aluminum is good to its just whether or not u want to color on the end of the pipe. Other than that i would go with the aluminum if thats what u want.

White Brothers All The Way!!

[mxxx rrrider]

Well, I broke down and bought the pro-circuit t4 aluminum muffler. I'm not sure what sort of differences a header makes, but the muffler makes a MAJOR difference. I haven't rode it on a big track yet, but a few of rode at Motoman's today and you can definitely feel the improved bottom end. It is still running the stock jetting, but I have a larger pilot and main jet on order. I doubt I will have them by wednesday when we go to Logroad MX.

[Roostman]

Pick up the new Dirt Rider, they just tested about 8 systems for your bike. The best being the Akrapovic Evolution with perfect fit and best all around performance and an acceptable level of sound at 97.1db. The others to rate high are DrD D-Shape, FMF Factory4 and the White Bros Carbon Pro. All of these are louder than the Akrapovic but produce good powerbands across the range. Pick up the July DR and read a little more on them.

[mxxx rrrider]

I've already read it. I saw it the day after I ordered my pro-circuit. Right now I'm very happy with my purchase. I think Jer might the the Dr.D in about a month. We'll see how happy I am then!

[Roostman]

04 CRF250R EXAUST shootout winners from Dirt Rider July 04

The breakdown of the pipes:

Akrapovic: $695
The Akrapovic instantly became a favorite among our testers; it was not only one of the best performing pipes but also the most quiet. This system really opened up the power characteristics from bottom to top. From down low all the way through to the top, the power felt stronger and more predictable. The Akrapovic has much more roll on (power) compared with the stock system, and it revs much faster through the rpm range. Top end power is strong, and it pulls hard before hitting the rev limiter.
Fit: A
Overall grade: A
Decibels: 97.1 dB
Max Hp: 31.1
Max Torque: 34.3

Dr.D: $499
The dr. D has great power off the bottom. Midrange is where the meat of the power is on this system. The midrange pulls long, with good, usable power carrying into a solid top end. This system has tons of usable roll on power and was liked by our novice and pro testers.
Fit: A
Overall: A
Decibels:99.2 dB
Max power: 31.2
Max torque: 34.6

FMF: $699
The FMF system really shined on the track. Our testers felt there was more usable power across the powerband. There was also more roll on power with good usable midrange. Overall throttle response was quick, and our test riders were able to use less clutch out of the corners.
Fit: B
Overall: A
Decibels: 101.7 dB
Max power: 31.0
Max torque: 34.6

White Bros: $895
The White Bros system worked really well everywhere. The bottom end power is solid, the midrange is strong and there is a good shot of top end power. It performed better on the track than on the dyno. Although the system is a bit pricey, all of our testers felt the on track gains equaled money well spent.
Fit: A
Overall: A
Decibels: 100.6 dB
Max power: 30.3
Max torque: 34.1

Stock: $673
The stock system isnt too bad, but after bolting on some of the exhaust systems in this test, we noticed it does have some weak spots through the power curve. The power delivery is smooth, but power signs off early on the top end. The best thing about the stock system is it is fairly quiet, so you can still think straight after a long moto.
Fit: A
Overall: C
Decibels:94.5 dB
Max power: 29.1
Max torque: 34.3


My conclusion is that I would love the look of the White Bros. system cause it is sweet looking, but would rather save $200 and go with the Akrapovic and have a slightly quieter bike with the same if not slightly more juice.

[Roostman]

Originally posted by mxxx rrrider
I've already read it. I saw it the day after I ordered my pro-circuit. Right now I'm very happy with my purchase. I think Jer might the the Dr.D in about a month. We'll see how happy I am then!

Oh, thats cool Im glad you got something that your happy with. I decided to post the best (according the Dirt Rider anyway) of their shootout so anyone else that wants to know can see the results.:

[Mecrazyperson]

Originally posted by Roostman
The breakdown of the pipes:

Akrapovic: $695
The Akrapovic instantly became a favorite among our testers; it was not only one of the best performing pipes but also the most quiet. This system really opened up the power characteristics from bottom to top. From down low all the way through to the top, the power felt stronger and more predictable. The Akrapovic has much more roll on (power) compared with the stock system, and it revs much faster through the rpm range. Top end power is strong, and it pulls hard before hitting the rev limiter.
Fit: A
Overall grade: A
Decibels: 97.1 dB
Max Hp: 31.1
Max Torque: 34.3

Dr.D: $499
The dr. D has great power off the bottom. Midrange is where the meat of the power is on this system. The midrange pulls long, with good, usable power carrying into a solid top end. This system has tons of usable roll on power and was liked by our novice and pro testers.
Fit: A
Overall: A
Decibels:99.2 dB
Max power: 31.2
Max torque: 34.6

FMF: $699
The FMF system really shined on the track. Our testers felt there was more usable power across the powerband. There was also more roll on power with good usable midrange. Overall throttle response was quick, and our test riders were able to use less clutch out of the corners.
Fit: B
Overall: A
Decibels: 101.7 dB
Max power: 31.0
Max torque: 34.6

White Bros: $895
The White Bros system worked really well everywhere. The bottom end power is solid, the midrange is strong and there is a good shot of top end power. It performed better on the track than on the dyno. Although the system is a bit pricey, all of our testers felt the on track gains equaled money well spent.
Fit: A
Overall: A
Decibels: 100.6 dB
Max power: 30.3
Max torque: 34.1

Stock: $673
The stock system isnt too bad, but after bolting on some of the exhaust systems in this test, we noticed it does have some weak spots through the power curve. The power delivery is smooth, but power signs off early on the top end. The best thing about the stock system is it is fairly quiet, so you can still think straight after a long moto.
Fit: A
Overall: C
Decibels:94.5 dB
Max power: 29.1
Max torque: 34.3


My conclusion is that I would love the look of the White Bros. system cause it is sweet looking, but would rather save $200 and go with the Akrapovic and have a slightly quieter bike with the same if not slightly more juice.

Bet that took you forever to wright up.. Killer bro.

[Roostman]

LOL, it did take about 20 min. and after all that he says he already got a pipe! LOL oh well, others will enjoy the write up too. Good thing I took typing in High School!! LOL