SPARK PLUG,SE PERFORMANCE,PAIR

Stock Compression Applications
Designed for modified engines including performance carburetors, high-flow air cleaners, camshafts, exhaust systems and ignition systems in conjunction with stock compression ratios.

31600106 Stock Compression Applications.
Fits '99-later Twin Cam-equipped models, and '86-later Evolution" Sportster® 883, 1100 and 1200 models.

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