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2003 KTM 525 SX Racing
Whether you’re cruising downtown or parked at a car meet
Installation instructions included (instructions show installation with laserlight
contact ModSupply directly—they'll walk you through the process and timeline
Header bolts can lose tension over time and heat cycles
Spool Performance ATC-13 Stage 2 Transfer Case DIY Kit JQ Werks 2003 KTM 525 SX RacingSpool Performance ATC 13 Stage 2 Transfer Case DIY Kit The ATC 13 transfer case is a known weak point once you start pushing real power. The factory design simply isnt built to handle sustained torque, aggressive launches, or high load driving. This kit fixes thatproperly. At the core of the upgrade is a fully redesigned billet hub machined from 4340 steel, then case hardened and nitrided to deliver exceptional surface hardness while maintaining core