Looking to eliminate Active Fuel Management (AFM/DOD) on your L87-powered GM truck or SUV? This Texas Speed & Performance kit includes everything needed to delete AFM/DOD from your GM L87 engine while replacing the factory camshaft with a non-DOD design for improved performance and long-term reliability. A custom tune or compatible tuner is required after installation to ensure proper engine performance.
⚠️ Important Note: Tuning is required after installation. The Texas Speed tuner option (TSP-TS-3090) is only compatible with 2019–2022 Silverado and Sierra trucks and does NOT work with SUV applications.
Kit Includes:
- 2019+ DOD Hole Plugs
- 2014+ LT1 Head Bolt Kit
- GM/Delphi LS7 Style Lifters (Set of 16)
- TSP OE-Style Gen 5 6.2L Head Gasket (Each)
- 2014+ LT1 Stingray Valley Cover Gasket
- GM LS1/LS6/LT1 Wet Sump Balancer Bolt
- LT1 Stingray Exhaust Manifold Gasket (Each)
- GM LT 2019+ Cam Phaser Bolt/Valve
- TSP OEM-Style Non-DOD Camshaft
- TSP LS/LT Front Crank Seal
- GM LS3 Lifter Trays (Set of 4)
- Water Pump Gasket (2014+ LT1)
Features:
- Complete AFM/DOD Elimination — Removes Active Fuel Management for improved reliability
- TSP OEM-Style Non-DOD Camshaft Included — Purpose-built replacement camshaft
- GM/Delphi LS7 Style Lifters — Full set of 16 included
- Comprehensive Gasket and Hardware Set — Everything needed for a complete installation
- Compatible with L87 6.2L Gen 5 Engines
Vehicle Applications — L87 6.2L:
Chevrolet Silverado 1500 High Country
- 2019 Chevrolet Silverado 1500 High Country — 6.2L L87
- 2020 Chevrolet Silverado 1500 High Country — 6.2L L87
- 2021 Chevrolet Silverado 1500 High Country — 6.2L L87
- 2022 Chevrolet Silverado 1500 High Country — 6.2L L87
- 2023 Chevrolet Silverado 1500 High Country — 6.2L L87
- 2024 Chevrolet Silverado 1500 High Country — 6.2L L87
- 2025 Chevrolet Silverado 1500 High Country — 6.2L L87
GMC Sierra 1500 Denali / AT4
- 2019 GMC Sierra 1500 Denali/AT4 — 6.2L L87
- 2020 GMC Sierra 1500 Denali/AT4 — 6.2L L87
- 2021 GMC Sierra 1500 Denali/AT4 — 6.2L L87
- 2022 GMC Sierra 1500 Denali/AT4 — 6.2L L87
- 2023 GMC Sierra 1500 Denali/AT4 — 6.2L L87
- 2024 GMC Sierra 1500 Denali/AT4 — 6.2L L87
- 2025 GMC Sierra 1500 Denali/AT4 — 6.2L L87
Chevrolet Tahoe & Suburban
- 2021 Chevrolet Tahoe/Suburban — 6.2L L87
- 2022 Chevrolet Tahoe/Suburban — 6.2L L87
- 2023 Chevrolet Tahoe/Suburban — 6.2L L87
- 2024 Chevrolet Tahoe/Suburban — 6.2L L87
- 2025 Chevrolet Tahoe/Suburban — 6.2L L87
GMC Yukon & Yukon XL Denali
- 2021 GMC Yukon/Yukon XL Denali — 6.2L L87
- 2022 GMC Yukon/Yukon XL Denali — 6.2L L87
- 2023 GMC Yukon/Yukon XL Denali — 6.2L L87
- 2024 GMC Yukon/Yukon XL Denali — 6.2L L87
- 2025 GMC Yukon/Yukon XL Denali — 6.2L L87
Cadillac Escalade & Escalade ESV
- 2021 Cadillac Escalade/ESV — 6.2L L87
- 2022 Cadillac Escalade/ESV — 6.2L L87
- 2023 Cadillac Escalade/ESV — 6.2L L87
- 2024 Cadillac Escalade/ESV — 6.2L L87
- 2025 Cadillac Escalade/ESV — 6.2L L87
⚠️ Note: SUV applications (Tahoe, Suburban, Yukon, Escalade) will require a separate tuning solution, since the included tuner option (TSP-TS-3090) only supports 2019–2022 Silverado and Sierra trucks.
Frequently Asked Questions:
Q: Is tuning required after installing this kit?
Yes. A custom tune or compatible tuner is required after installation to ensure proper engine performance.
Q: Does the optional tuner work with my SUV?
No. The Texas Speed tuner add-on (TSP-TS-3090) is only compatible with 2019–2022 Silverado and Sierra trucks. It does not work with SUV applications such as the Tahoe, Suburban, Yukon, or Escalade. SUV owners will need a separate tuning solution.
Q: What camshaft is included with this kit?
A TSP OEM-style non-DOD camshaft is included, designed to replace the factory AFM-equipped camshaft.
Q: How many lifters come with this kit?
A full set of 16 GM/Delphi LS7-style lifters is included.
Q: What is the difference between this kit and the L84 5.3L kit?
This kit is built for the L87 6.2L engine and includes a 6.2L-specific head gasket. The L84 kit is built for the 5.3L engine found in base-trim Silverado and Sierra trucks. Make sure you select the kit matching your specific engine.
Q: What vehicles use the L87 6.2L engine?
The L87 6.2L is found in higher trim levels including the Silverado 1500 High Country, Sierra 1500 Denali/AT4, and across the Tahoe, Suburban, Yukon, Yukon XL, and Escalade lineup.
Q: What gaskets are included?
This kit includes the TSP OE-style Gen 5 6.2L head gasket, 2014+ LT1 Stingray valley cover gasket, LT1 Stingray exhaust manifold gasket, and water pump gasket.
