Dr. D head pipe performance ??

I'm using a Dr. D slip on, on a 04' yz450f. I really enjoy this pipe, since it broadens the powerband. I'm currently running the stock head pipe, and I was wondering if getting a Dr. D head pipe will improve performance even more, or is it insignificant, and not worth puting on??

thanks

I'm using a Dr. D slip on, on a 04' yz450f. I really enjoy this pipe, since it broadens the powerband. I'm currently running the stock head pipe, and I was wondering if getting a Dr. D head pipe will improve performance even more, or is it insignificant, and not worth puting on??

thanks

Yes, this is where the power is generated - in the header. The Dr.D system is designed for this, so you WILL feel the difference. Highly recomended by most here.

Thanks, I may just get one.

Like Rickk said the header is where the most power is generated at. When I bought my DRD exaust I bought the full system for my 06 450f and I just know that the full system is just out of sight. Has plenty power down low and pulls strong on top.......all the way to the rev limiter. You will be satisfied and thrilled when you put the header on and I doubt you will be disipointed.

The Dr.D header (either of them) is a stepped design, and is an important component of the full system. It would be somewhat over-generalizing to say that the header is where most of the power improvement comes from in every exhaust system, but is is certainly a big part of the whole picture. But, depending on the design of the mid pipe/silencer, and how much it differs from the original, it really can sometimes be the most important element.

What you would need to know is whether the slip-on and the pipe silencer from the complete system are the same or not. If they are, then yes, you should see an improvement over what you have. Even if they aren't, you should see a subtle change in the power with the stepped header, probably a boost in low end.

Something to remember is that the stock Yamaha systems are so good that it isn't as easy to improve on them as with some other bikes. The main benefit is mostly in widening or relocating the power curve, rather than in any huge increases at peak or elsewhere. A 2 hp peak gain over stock is about as big a gain as I've seen in any credible test of exhaust pipes.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now