HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
SandLunatic

very strange headpipe

4 posts in this topic

I was riding at Hollister SVRA last weekend and saw a 426 with what looked like a dual exhaust headpipe like a honda xr400. It was literally 2 pipes, then they went into the silencer. It looked like a big gun tailpipe but had no logo or sticker. The whole camp saw it so i'm not going crazy. My friend works at a honda/yamaha parts department and never saw one before. Does anyone run such a pipe or heard of one? We only saw him one time going down the main road and he had his little boy riding behind so we got a long look at it but never saw him again. I really did see it and no I don't see ufo's off the back porch of my mobile.

Share this post


Link to post
Share on other sites

Yeah that was a Big Gun system you saw. Headpipe to tailpipe probably. The headpipe was called the Big Gun SDS system that was flogged a few years back. The SDS acyronym meant "single dual single" to denote the configuration of the pipe. Alledgedly, the design was to improve low end torque with the two smaller diameter headpipe(s)

I remember hearing of many complaining that it came too close to their gas tanks for their liking.

Did it work? I can't say although Big Gun does not seem to be advertising any longer. Try asking Mike over at Big Gun.

fershy

Share this post


Link to post
Share on other sites

I think I have the old dirt rider from a couple of yrs ago with all the diff aftermarket pipes for the 400f.

I t was cool.

all the hp gains and costs etc all w/pix!

I will see if i can find it.

maybe I can post a pix of it. :)

Share this post


Link to post
Share on other sites

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
Sign in to follow this  
Followers 0