Must be used in conjunction with Titanium 4 Muffler Available in both stainless steel and titanium construction Stainless steel version offers identical performance traits as the titanium but is more economical The titanium mid pipe compliments the full Titanium 4 system - totally lightweight and designed for the highest levels of performance This product can be used with KTM 400 00-03 KTM 520 00-03 KTM 525 00-03