85400-200
2011–2016GMC Denali 25006.6L Duramax
Listed in CARB EO D-802-13; final determination by CARB / Smog Check station. Original PDF
Vehicle · All part types
GMC Denali CARB legal parts
2 listings (2 part numbers) from 1 brand in 1 CARB Executive Order name the GMC Denali, model years 2011–2016.
Each row is copied from the EO's vehicle table. Listed in a CARB EO means that part number and vehicle appear in that order; match the model year, engine and remarks to your car. Final determination by CARB / Smog Check station.
Tuner / ECU · 2
85401-201
2011–2016GMC Denali 25006.6L Duramax
Listed in CARB EO D-802-13; final determination by CARB / Smog Check station. Original PDF
No listed part covers that model year. Try another year or check the EO PDFs.
Before you buy for a GMC Denali
- Match the engine. The EOs here list 6.6L Duramax. A part listed for one engine is not covered on another.
- Match the model year. Use the year filter above. EOs are often extended with new years later; a newer EO from the same brand may cover your year.
- Read the remarks. Some rows exclude certain test groups or require keeping the factory air box or hydrocarbon trap.
- Keep the EO label. The maker supplies a label with the EO number ("CARB D-xxx") to put under the hood for Smog Check. How to read it.
An EO exemption only says the part was found not to increase emissions on these vehicles. It says nothing about power gains, fit or warranty. What an EO does not mean.
Questions
Is there a CARB legal tuner for the GMC Denali?
Yes, at least in the EOs we read: 2 listings from Powerteq name the GMC Denali for model years 2011–2016 (EO D-802-13). Each EO covers only the exact years, engines and part numbers in its table, so match all three to your car and keep the EO label on the part.
How do I prove a part on my Denali is smog legal?
Keep the EO label from the part maker in the engine bay and a copy of the EO. At a Smog Check, the inspector compares the part with the EO number. If a station questions it, BAR's Smog Check Referee can inspect modified vehicles. See our guides on the EO sticker and the Referee.
EOs on this page
Other GMC models
By part type, all vehicles
Source: CARB aftermarket parts Executive Orders (Exhibit A vehicle tables), retrieved November 11, 2026. Independent reference, not affiliated with CARB. Rows we could not read with certainty are not shown; check the EO PDF for the full table.