GPI Spark Plug Wire Set - Extreme Heat - Standard Length - Gray (1999+ GM LS Truck) - gpiTLS-XTR-GRY
Extreme Heat Ignition Wires for Boosted LS Truck Builds
The GPI Extreme Heat Spark Plug Wire Set - gpiTLS-XTR-GRY is designed for 1999+ GM LS truck engines running forced induction and operating under elevated exhaust gas temperatures. This Xtreme Heat version features upgraded high-temperature boots and an additional protective heat sleeve to handle the increased thermal demands of turbocharged and supercharged LS truck applications.
Built in a standard-length configuration, these wires measure 11.5 inches overall including boots, ensuring proper fitment for Chevy LS truck engines with factory-style coil placement. Each wire uses a 30 ohms-per-foot high-inductance design, averaging ~400 mH per foot, which helps provide excellent EMI/RFI suppression while maintaining a strong, stable ignition signal under boost.
A 200 TPI copper winding combined with a .085 - .090? conductor diameter delivers durability and consistent electrical performance. Finished in a neutral gray sleeving with 45° LS coil boots and 45° spark plug boots, these wires provide secure connections, clean routing, and a subtle performance look. Every set is engineered, hand-built, and hand-tested in the USA, delivering unparalleled quality and customer service.
Performance Highlights
- Extreme Heat version for turbocharged and supercharged LS truck engines
- Upgraded high-temperature boots with added heat sleeve protection
- Standard length designed for GM LS truck applications
- 11.5? overall length including boots
- 30 ?/ft high-inductance wire (~400 mH/ft)
- Excellent EMI/RFI noise suppression for modern EFI systems
- Copper conductor with 200 TPI winding
- .085 - .090? conductor diameter
- 45° LS coil boots and 45° spark plug boots
- Available in multiple colors - this listing: Gray
- Hand-built and hand-tested in the USA
Quick Specs
- Part Number: gpiTLS-XTR-GRY
- Application: GM LS truck engines
- Version: Extreme Heat
- Length: Standard (11.5? overall including boots)
- Recommended Use: Forced induction / high-EGT setups
- Resistance: 30 ohms per foot
- Inductance: ~400 mH per foot
- Conductor: Copper, 200 TPI
- Conductor Diameter: .085 - .090?
- Boot Angles: 45° LS coil / 45° spark plug
- Manufacturing: Hand-built and hand-tested in the USA
FAQs
Who should use the Extreme Heat LS truck spark plug wires?
These wires are intended for boosted GM LS truck engines that experience higher exhaust gas temperatures and need additional thermal protection compared to standard wire sets.
Will these wires fit factory LS truck coil locations?
Yes. The standard-length configuration is designed to match OEM LS truck coil placement for proper routing without excess slack.
Fitment
- 1999 GM LS Truck Engines
- 2000 GM LS Truck Engines
- 2001 GM LS Truck Engines
- 2002 GM LS Truck Engines
- 2003 GM LS Truck Engines
- 2004 GM LS Truck Engines
- 2005 GM LS Truck Engines
- 2006 GM LS Truck Engines
- 2007 GM LS Truck Engines
- 2008 GM LS Truck Engines
- 2009 GM LS Truck Engines
- 2010 GM LS Truck Engines
- 2011 GM LS Truck Engines
- 2012 GM LS Truck Engines
- 2013 GM LS Truck Engines
- 2014 GM LS Truck Engines
- 2015 GM LS Truck Engines
- 2016 GM LS Truck Engines
- 2017 GM LS Truck Engines
- 2018 GM LS Truck Engines
- 2019 GM LS Truck Engines
- 2020 GM LS Truck Engines
- 2021 GM LS Truck Engines
- 2022 GM LS Truck Engines
- 2023 GM LS Truck Engines
- 2024 GM LS Truck Engines
- 2025 GM LS Truck Engines
Why Buy from Beefcake Racing?
Beefcake Racing supplies proven LS truck ignition components backed by real-world experience. For help choosing the right Extreme Heat setup for your build, call 1-855-827-7223 or email sales@beefcakeracing.com.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
