SP1 Spark Plug Indexing Washer Kit - Enhance Performance & Fuel Efficiency for Racing & Daily Use

Elevate your engine's performance with SP1's Spark Plug Indexing Washer Kit - the secret weapon of racers and performance enthusiasts. By aligning electrodes precisely toward intake ports, this kit delivers unmatched combustion efficiency for power gains and fuel savings.

Key Features

• Indexed Alignment Technology: Ensures hottest flame meets fresh fuel charge for maximum combustion efficiency
• 14mm Thread Compatibility: Universal fit for standard threaded spark plugs
• Simple Installation: Use magic marker to mark electrode side and shim with washers for precise alignment
• Durable Construction: High-strength material withstands extreme engine conditions

Why Choose This Product

Whether you're tuning a race car or optimizing your daily driver, this kit offers measurable benefits: improved throttle response, better fuel economy, and longer-lasting spark plugs. The indexed design ensures consistent ignition timing, reducing misfire risks and enhancing overall engine efficiency. Professional racers have relied on this method for decades to extract maximum performance from their engines.