+1! I've got a 4-2-1 Yosh. Lost 20-25LBs and gained about 8-10HP. Sounds good! Excellent stuff!Weight, sound, HP gain ?
IMHO get the 4 in 1 full system. It gives you the greatest advantage in weight, ponies, and sound.
You can get some very good info here by using the search feature. One of our sponsors has performed numerous dyno pulls on various systems.
You'll get a little power boost, better looks, a little less weight and better sound. If you're happy with the power now and just want to add some looks and noise they'll be fine. But like the guys are saying. if you want a big power gain the full system is the ticket. I'm running a yosh full system, big power gains above 5 grand, a ton less weight, bike feels wayyy lighter, and has a nice sound without being obnoxious on longer rides. Plus it looks hella goodany advantage with r-77 carbon slp-on over stock
I don't know if I'd say it's the best but as others have said, it's a good system that will give you noticeable gains while dropping weight at the same time...Sounds like sport bike riders more experienced than me (Have rode harleys for 26 years) think Yoshimura 4-2-1 system is the best. Thanks for the advice.
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