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I have one and it advances the timing at 4000 rpm by 5 degrees and retards from stock by 4 degrees at 9000 rpm. This works great with turbos. BTW it also removes the rev-limiter.

I swain tech coat my headers, turbo and exhaust downpipe. I haven't run it yet. I does look good however.

Greg (Turbo Turtle) is a great guy to deal with and I would recommend this Turbo setup to anyone looking to buy...

I would be interested in Roetin studs as well. Please let me know cost and I'll make a decision.

By the way... I have a precision hanging scale and weighed my RX1 motor. No carbs, no exhaust, no clutch. It weighed #114. By comparision, my 1000 t-cat motor weighed #111. Not as bad as I thought.

I've got my motor out of my RX1 and have a set of coated 10:1 pistons to install. I've installed many pistons into 2-strokes, but have never done a 4-stroke. I've got the Yammy RX1 service manual but would like advise on things I should watch for and tricks to installing these pistons. Do I...

I have a new Tison front mount turbo that has not yet been installed. I was thinking of installing an A/F ratio sensor. I have not purchased one yet. Would I install it in the header pipe just before turbo or in exhaust pipe exiting turbo?? Would I be better off with a traditional EGT...

Motor dies briefly when jumping sled. Anybody else have this problem??

I've got a set in my '03 and not sure about any large improvements. How about anyone else??

Thanks to everyone responding, I've heard that snow ingestion is a problem. Sounds like everyone is using the Bender setup, haven't had a single response on the MC Express setup.

Want to put a turbo on the '03 RX1 Mtn. Which one works best???