GPI Spark Plug Wire Set - Extreme Heat - Long Length - Purple (2014+ GM LT Engines) - gpiLT-XTR-PUR-LONG
Extreme-Heat Ignition Wires for Boosted LT Engines
The GPI gpiLT-XTR-PUR-LONG Spark Plug Wire Set is designed for forced-induction LT platforms that operate in high-temperature environments. This Extreme Heat version features an upgraded boot design and an additional heat sleeve to protect the ignition system from elevated exhaust gas temperatures commonly seen in turbocharged and supercharged builds.
Built in a long-length configuration, this set is intended for 2014+ GM LT cars and trucks equipped with GPI valve cover kits or relocated coil mounting. Each wire uses a 30 ohms-per-foot high-inductance design averaging approximately 400 mH per foot, combined with a 200 TPI copper winding and a .085 - .090 inch conductor diameter. This construction delivers excellent EMI/RFI noise suppression while maintaining strong, consistent spark energy for modern EFI-controlled LT engines.
Finished in a bold purple sleeving and equipped with 45-degree coil boots and 45-degree spark plug boots, these wires provide clean routing, secure engagement, and durability where it matters most. Every GPI wire set is engineered, hand-built, and hand-tested in the USA.
Performance Highlights
- Extreme Heat construction for forced-induction LT applications
- Upgraded boots with additional heat sleeve for high-EGT protection
- Long Length design for engines using GPI valve cover kits
- High-inductance ignition wire for stable spark delivery
- Copper conductor with tight, high-quality winding
- Excellent noise suppression for EFI systems
- Angled coil and spark plug boots for proper routing
- Available in multiple colors - this listing: Purple
- Hand-built and hand-tested in the USA
Quick Specs
- Part Number: gpiLT-XTR-PUR-LONG
- Application: GM LT car and truck engines
- Version: Extreme Heat, Long Length
- Intended Use: Forced induction and high-EGT environments
- Resistance: 30 ohms per foot
- Inductance: High-inductance design for noise suppression
- Conductor: Copper, high-density winding
- Boot Style: Angled coil and spark plug boots
- Manufacturing: Hand-built and hand-tested in the USA
FAQs
Who should use the Extreme Heat LT spark plug wires?
These wires are recommended for turbocharged or supercharged LT engines that experience elevated exhaust gas temperatures and require added thermal protection around the ignition components.
Are these necessary for naturally aspirated LT builds?
Typically no. Naturally aspirated engines are usually well served by standard or long-length GPI LT wire sets, unless additional heat shielding is desired due to tight engine bay layouts.
Why Buy from Beefcake Racing?
Beefcake Racing offers proven LT-platform performance parts backed by real-world experience and expert support. Need help choosing the right ignition wire setup? Call 1-855-827-7223 or email sales@beefcakeracing.com.
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