Dirt Bike 4-Stroke Complete Systems
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Most Recent Dirt Bike 4-Stroke Complete Systems Reviews
Yoshimura RS-12 Full System Exhaust
Todd - NC PROPS TO YOSHIMURA! "Purchased the RS-12 for my 2021 RM-Z450 directly from Yoshimura. I reached out directly to Yoshimura via email with a couple of questions and was welcomed with the industry's top-notch customer service. Responded the same day and got my order placed and shipped! Couple of things I'd like to highlight about the RS12 1. The packing is perfection. Yoshimura spared no cost when it came to 'custom' packaging, probably the best I have seen within our industry, Everything was thought out, not just thrown into a box. Very impressed. 2.The RS-12 has the best fit and finish I have seen on any exhaust system. It blows the other 'big' names out of the water, from the slip joints to the spring with the Yoshimura logo to the actual construction of the can, 10/10 would recommend. 3. Performance, now to the good stuff. The pipe really woke up the RM-Z450, the throttle response was the first thing I noticed as I started her up, drastically improved. Once I got a few motos on the bike, it really came to fruition how much R&D Yoshimura put into this system. Power increases exactly where you would want them (boosted bottom, stronger mid and ton of top-end pull), without sacrificing any part of the power band. Specifically for my RM-Z450, I used the MX-Tuner to create this custom map: https://www.keeferinctesting.com/motocross-testing/2021/5/7/optional-2021-rm-z450-mx-tuner-20-aggressive-map and that created amazing results, HIGHLY recommend that map if you have the MX Tuner on your ZOOK."See all reviews for this product
Big Gun Evo Mini Complete Exhaust
Klotz - Detroit Mi Sounds good… but "I just fitted this up to my 2006 CRF70F. I have a new Piranha 125 front clutch motor on the bike. It fits okay, I had to trim the pipe down about 3/8” to fit. The pipe rubs the clutch lever, that took some tweaking to sort out. The silencer was missing a bolt, and the spring to tie the silencer to the pipe is too short (albeit unnecessary given how tight the fit is anyway). All that being said, it really woke the bike up, and it sounds ridiculous, a much more throaty exhaust note. The exhaust is well built, sounds good, but the small details were amiss. Just ride a two stroke."See all reviews for this product
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