Another head thread

Just wanted to confirm what I had read on many reviews. The RK Tek head (I got the bullet version) is a FANTASTIC improvement! My 2018 xc250 now has more power across-the-board and I can run a year higher in almost all sections of singletrack. It is a world of difference in grunt.
 
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for a little more cost of a pipe you get way more performance, best money i ever spent on a bike.
 
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