Product Info
Product Info
2004.5-2005 Chevy LLY Switch is organized to make fitment, included components, and ordering details easier to confirm.
Confirm the listed year, make, model, engine, and any truck-specific configuration before purchasing. The exact contents and fitment depend on the options selected on this product page.
These small switches offer big adjustability. By simply turning the dial left or right until it clicks, you are able to command your truck to give you more or less HP & TQ. This obviously only works if you have already flashed the ECM with SOTF tuning software. Depending on your vehicle, our switch will utilize your truck’s Fuel Temperature Sensor, Crank Case Pressure Sensor, or Intake Air Temperature Sensor.
Fitment and Ordering
Match the product to the year, make, model, engine, and truck configuration shown in the title and product options.
Installation Notes
Compare the received parts with the listing and confirm fitment before beginning installation. Professional installation is recommended when vehicle-specific access or modifications are required.
Fitment and Options
Options on this page are tied to real Shopify variants. Unavailable combinations are disabled automatically, and the cart receives the exact selected variant.
Shipping
Shipping options and delivery times are shown at checkout. Fast air shipping may be available at checkout. Some tuning, custom-order, and VIN-matched items may require extra processing time.
Returns
Electrical, tuning, special-order, and used/installed items may have special return limits. Contact support before ordering if you are unsure.
Unlimited Diesels
Built to help you order the right diesel setup.
1Select the exact product options that match your truck.
2For tuners, tunes, and bundles, verify the VIN and add modification notes.
3Add matching support parts below the product when they are needed.
4Review the cart, then checkout with the exact selected variants.