2015 Chevrolet Silverado 1500 High Country Performance Parts

Perfect addition for all you 14+ truck people with magnuson/whipples. Gives you 3 gallons of added capacity to your supercharger system and allows you the ability to drain and ice for the drag strip.

The DSX Tuning flex fuel kit is the original plug and play solution to adding flex fuel on Gen IV/Gen V GM V8 vehicles. Use these kits to add the ability to run anywhere from straight gasoline to straight ethanol as well as reveal the...

Katech Gen V L82/L84 Wet Sump Oil Pump Stronger Gear. Proven Durability. Built To Last. The Katech Gen-V L82 & L84 Wet Sump Oil Pump uses a 4140 billet steel gear in place of the factory powdered metal gear for added durability where it...

Katech Gen-V L87 & L8T Wet Sump Oil Pump Consistent Oil Pressure. Proven Durability. Engineered To Perform. The Katech Gen-V L87 & L8T Wet Sump Oil Pump is designed to improve durability in Gen-V truck engine oiling systems by replacing the factory powdered metal...

Permanent mechanical solution for eliminating DI injector holes. Heads are CNC-machined and tapped for the sealing bolt and taper washer installation. No risk of injector plug teflon seal failure due to lack of fuel cooling. Designed for high boost, racing, or permanent Port fuel...

For LT1/L86 Gen 5 engines   This bundle includes: Disassemble Wash CNC ported intake/exhaust runners Competition valve job Hand-blending Valve reconditioning   Cylinder head deburr service Katech logo engraving on both heads   Note: Re-assembly not included. (see below in you may also like..)...

Katech Spec Ferrea Gen V LT1/LT4/LT5/L86 Super Alloy Exhaust Valve Inconel Exhaust Valve for Higher-Output and High-Duty-Cycle Gen V LT Applications. The Katech Spec Ferrea Gen V LT1/LT4/LT5/L86 Super Alloy Exhaust Valve is designed for compatible LT1, LT4, LT5, and L86 cylinder head applications....

For LT1/L86/L8T Gen 5 engines Now you can get this porting service on your cylinder heads at an incredibly low cost! Simply follow this procedure: Remove the cylinder heads from your car Disassemble cylinder heads to completely bare condition Wash cylinder heads Print a...

Allows a Factory LT4 supercharger, or aftermarket LT4 supercharger/intake to be bolted to a LT1, L86 and L83 cylinder head. LT4 superchargers may interfere with L86 and L83 accessory drives. Avoids using adapter plates that can leak and also cause hood clearance issues from...

  NOTE: This CNC porting bundle is unique as it does not include CNC porting the intake and exhaust runners, but rather the chambers and a valve job and hand-blending. Flow testing indicated that porting the intake and exhaust runners on the L83 head...

Katech LS/LT1/L83/LT4 Titanium Valve Spring Replacement Retainer Titanium Replacement for Compatible PSI Valve Spring Packages. The Katech LS/LT1/L83/LT4 Titanium Valve Spring Replacement Retainer is designed for PSI-LS1511 and PSI-LS1516 valve springs in compatible LS, LT1, and L83 valvetrain packages, plus LT4 exhaust valve applications...

Katech LT1/L83 OEM Guide Valve Spring Replacement Seat Spring Seat for Compatible LS and LT1/L83 Heads with PSI-LS1511 Valve Springs. The Katech LT1/L83 OEM Guide Valve Spring Replacement Seat is designed for compatible LS, LT1, and L83 cylinder heads using PSI-LS1511 valve springs and...

Katech Gen V L83 & L86 Wet Sump Oil Pump - High Volume Upgrade Consistent Oil Pressure. Proven Durability. Engineered To Perform The Katech Gen V L83 & L86 Wet Sump Oil Pump is designed for LT-based truck engines, delivering increased oil volume and...

Katech Gen V LT1/LT2/LT4/L86/L87 87MM CNC Ported Throttle Body New GM Throttle Body with CNC Porting for Compatible Gen V LT Car, Truck, and SUV Applications. The Katech Gen V LT1/LT2/LT4/L86/L87 87MM CNC Ported Throttle Body features CNC porting to improve airflow, pedal feel,...

Katech L82/L83/L84 80MM CNC Ported Throttle Body New GM Throttle Body with CNC Porting for Compatible L82, L83, and L84 Applications. The Katech L82/L83/L84 80MM CNC Ported Throttle Body starts with a new GM 80mm throttle body and adds CNC porting to support improved...