DRI 4-Stroke Bolt-on Kits are designed to provide the maximum horsepower increase while preserving reliability

Product Information:

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Includes: Complete Fat Boy 4 Exhaust System (with STD Muffler), Jet Kit, K&N Filter & Outerwear
Power Gains: 15-20% gain in HP
Excellent Start Up Performance Mods. Stage 1 Power Kits are designed to work with most DRI engine kits