Spark Plug Index Shims 14mm

Optimize your engine's performance with the ALLSTAR PERFORMANCE Spark Plug Index Shims 14mm. Designed to enhance spark plug alignment, these shims ensure a more efficient combustion process, leading to improved horsepower and fuel efficiency.

• Precision-engineered for a perfect fit, allowing for optimal spark plug positioning.
• Lightweight at just 0.040 lbs, these shims won’t add unnecessary weight to your setup.
• Durable construction ensures long-lasting performance, even in high-stress environments.
• Easy to install, making it a hassle-free upgrade for your engine.
• Compatible with 14mm spark plugs, enhancing their effectiveness.

These shims are an essential addition for any performance-focused engine build, ensuring reliability and efficiency. Upgrade your ignition system with ALLSTAR PERFORMANCE today!