STILLEN 2020-2026 GMC Sierra 2500 HD TruPedal by STILLEN Throttle Response Controller - TT15725752-7
Fits 2020-2026 6.6L Duramax V8 (L5P) · 6.6L Duramax V8 (L5P, updated)
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A throttle controller changes how fast the pedal signal reaches the computer. It does not add power, it changes pedal feel. This one is the STILLEN 2020-2026 GMC Sierra 2500 HD TruPedal by STILLEN Throttle Response Controller - TT15725752-7, listed to fit the 2020-2026 GMC Sierra 2500HD/3500HD with the 6.6L Duramax V8 (L5P) or 6.6L Duramax V8 (L5P, updated).
why this one — Buy it because the stock pedal feels lazy off the line, not for a horsepower number. There is none. STILLEN lists it at $279.00, and the fitment above is what the listing itself states, not a guess.
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.