Speartech Fuel Injection Systems

Sale is for default harness layouts only and only for online orders!

4th of July sale from now until Sunday July 5th. Get 10 Percent off Gen 3 and Gen 4 harnesses and harness packages.
All Gen 3 and Gen 4 harnesses have a 3-4 week lead time which can vary. For US Sales only and shipping within the USA.

We're celebrating 250 years of freedom!!!!!!!!

Press release.
ANDERSON, IN and MOORESVILLE, NC — Speartech Fuel Injection Systems, Inc., the industry’s renowned LS and LT engine retrofit specialist, and Modern Racing, a leader in motorsport electronics and wiring solutions, have announced a strategic partnership focused on developing high-performance electrical systems for the underserved space between sportsman racers and top-tier professional race teams. While expanding into new motorsports-focused product offerings, Speartech remains fully committed to growing the industry-leading EFI conversion solutions, wiring systems, and customer support that its loyal customer base has relied on for decades. By combining Speartech’s harness production capabilities with Modern Racing’s hands-on motorsports integration experience and trackside involvement with top-level racing teams, the partnership aims to deliver professional-grade reliability, serviceability, and performance to a broader range of racers and builders. Insights gained through Modern Racing’s real-world experience at the highest levels of competition will help drive the development of products and solutions tailored specifically to the needs of sportsman racers.