Trail Rider Magazine

July 2026 31 Installa on took less than an hour Installa on took less than an hour TSP Medium Compression Head TSP Medium Compression Head The last piece of the puzzle was installing the TSP Medium Compression billet cylinder head. First of all, it's a gorgeous part. As one who admits to linking bling, it's a pre y trick looking component. Installa on was pre y simple: pull the seat and gas tank, drain the coolant system (KTM makes this really easy as the lower waterpump bolt is also the coolant drain), remove the six head bolts, and pull the stock cylinder head. Installa on is in reverse order, and be sure to torque the head bolts to 19.9 -lbs. The final test would be to see how all the TSP com- ponents worked together. A er a good 20-mile rip through our private stash, the results were impres- sive. What was a rather lazy 300 is now a torque monster. Not uncontrollable in any way, my point is the bike now pulls with authority on the green map and has grunt to spare on the white map. Where the TSP mods really shine is that the bike is now a blast to ride in higher gears. Yes, 300s like to be lugged, and I typically find myself riding in third gear on technical singletrack. Now, the bike enjoys pulling 4 th gear with minimal thro le openings while s ll lo ing the front wheel with ease when needed. Steep rocky climbs that were a challenge in second are now conquered in third gear. To sum it up, the TSP components installed all comple- ment each other very well. Ok, what's the bo om line on all this cool stuff, you ask? Well, a er ge ng in mately familiar with the TSP ERM, I've found it to be a tremendous bargain at $500.00. As for the oversize PV cover, for 120 bucks, it's a performance boost that won't break the bank. As for the TSP Medium Compres- sion Head, we like how it complements the tune. Priced at $320, we feel it's worth the money and completes the package. In the end, we're thor- oughly impressed with all the TSP components installed. Huge thanks to Slavens Racing for introducing us to Two Stroke Performance and for providing the parts. We like results, and this was certainly a pos- i ve experience! TSP Reflash Module: Slavens Part # P.ERM.ALL $500.00 TSP Medium Compression Cylinder Head: Slavens Part # P.H.KTM30024on.E $320.00 TSP Oversize Powervalve Cover: Slavens Part # P.PV.KT250300.TB $120.00

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