zed1015 wrote:

The OP wants a 4 into 2 into 1 system..

Is the Hindle really effectively a 4-2-1? The pictures I can find are not super clear, but I looks like there is a very short "2-1" section, maybe just 2" long? I'm skeptical that this would offer substantially different performance than a 4-1 with similar tube diameter and length.

The exhaust tuning parameters are specific to each engine, but looking at the 4-2-1 headers for the Honda B18 engine, the 4-2 and the 2-1 sections are roughly the same length.

I'm sure the Handle are nice, but it's hard to believe the performance would be substantially different.

Motogpworks / Patriot Racing is another source for stainless exhausts.

patriotracingindustries.com/kawasaki-kz1...e-stainless-exhaust/

Dales rear swing arm is off a ZRX1100, I know I have the same basic setup.   However, there is a company call MotoGPWorks that sells a exact S1 swingarm replica for about $1300.00 bucks.  I found that the ZRX1100 setup is plenty strong enough, and raises the rear about an inch, thus slightly reducing the rake angle. I have about 3500 miles on my zrx1100 swingarm and I can definitively say it makes a huge difference in handling.  I also, at the same time, increased the swingarm pivot bolt to a 20mm using a ZRX rear axle, it fits perfectly.  I believe the last iteration of the twin shocker GPZ/J models frames are pretty dang good handling.  Their biggest issue was the spindly rear swing arm (frame wise) and slop in the bearing to pivot bolt connection.  Goes without saying the forks and rear shocks were lethal in stock form.  I swapped out the rears for a set of zrx1100 KYB's, which are light years ahead of the stockers, the forks were re-worked with  RaceTek springs and gold valve cartridge emulators.  I re-worked the emulators to get a tighter seal and a progressive type high speed valve spring.  I fine tuned the fork oil as well...this made a huge difference.  These old forks have way too large oil passage holes, they require thick heavy oil to actually dampen.  With emulators installed you can actually have high speed and low speed dampening.  

JM2C
577Nitro

Is that an old calfab extended gs1100 swingarm? or a new one made by motogpworks? also what hub is that?

Dr. Gamma wrote: EVERYTHING that MotoGpworks makes is first rate!!!!! You won't find a better made product anywhere, end of question.

Not bad for a one man business...

EVERYTHING that MotoGpworks makes is first rate!!!!! You won't find a better made product anywhere, end of question.

KipKawa, the guy in England who made the S1 parts burnt a few people I know out of some huge sums of cash when he closed up. I know of one person he burnt that is looking for blood over what he got taken for!!!!

well... if you search for "motogpwerks" you get this about 10 pages

and if you search for the alternate spelling "motogpworks" you get this about 4 pages

Looks like you have some reading to do! :lol: :laugh:

I Love mine, all stainless and great for cornering.
The sound is great as well.

Motogpwerks make an excellent product. Several members have one and I believe all are pleased with the product. I have one on a Suzuki and like it a lot. It is a different model than the one pictured however.

No eBay APP ID and/or Cert ID defined in Kunena configurationHi to all,

Has anyone used one of these exhaust by motogpworks for a KZ900 or 1000? just curious as to what they were like?



Thanks
John

I'm very interested in getting a Motogpwerks stainless steel Yoshimura replica exhaust system.

The next few photos were taken from the following threads [thanks rich67 and Kapahulu]:
kzrider.com/forum/2-engine/519702-new-exhaust-from-motogpwerks
kzrider.com/forum/11-projects/530689-197...ith-motogpworks-pipe
kzrider.com/forum/11-projects/551578-moto-gp-werks-exhaust-pics





















Has anyone else dealt with this company?