Tuned specifically for the O.S. 12XZ Speed Spec III engineIFMAR and FEMCA approvedAluminum construction with polished natural finish
Tuned PipeHeaderHeader to Pipe GasketHeader to Engine GasketThree Header to Pipe SpringsOne Pipe to Engine Spring
Length: 5.5" (140mm)Diameter: 1.3" (33mm) at widest pointExhaust Diameter: 0.197" (5mm)