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T304 Stainless Steel
The Purest Stainless Steel used in Exhaust System Manufacturing
High Rust Resistance
Lasts Up To 20+ years
Looks Better

T409 Stainless Steel
The Standard Stainless Steel used in Exhaust System Manufacturing
Low Rust Resistance
Lasts Up To 5-8 Years
Looks Dull
Attention
A 2022 Cummins Tune Package was added to your cart. This tune is a beta tune that may cause the following:
- Low power
- Poor fuel mileage
- Engine codes that may appear
- Poor shifting characteristics
For a tested and proven tune, please view our Ram Cummins 6.7L All-in-One DPF/DEF/EGR Delete Kit w/ECM Swap (2022-2024)
GM Duramax LML - Grid Heater Throttle Valve Delete (2011–2016)
Unlock true airflow potential in your 2011–2016 LML Duramax with this Grid Heater Throttle Valve Delete. The factory throttle valve is a known restriction in the intake tract—especially on tuned or modified trucks. This billet aluminum delete removes the bottleneck, delivering better throttle response, lower EGTs, and smoother airflow where it counts.
Key Features:
- Billet Aluminum Construction: Precision-machined for strength, durability, and heat resistance.
- Improved Airflow: Eliminates a major restriction in the intake system, allowing your turbo to breathe freely.
- O-Ring Seal & Mounting Hardware Included: Everything you need for a clean, secure installation—no extra trips to the parts store.
Why Delete the Throttle Valve?
On stock trucks, the throttle valve helps with emissions-related functions. But once you're tuned or running aftermarket components, it becomes a performance killer. This delete gives you back the airflow your Duramax was designed to move—especially under load or high boost. It’s a simple upgrade with noticeable gains.
Compatibility:
- 2011, 2012, 2013, 2014, 2015, 2016 GMC Sierra 2500HD/3500HD 6.6L Duramax LML
- 2011, 2012, 2013, 2014, 2015, 2016 Chevy Silverado 2500HD/3500HD 6.6L Duramax LML
Straightforward Install. Proven Results.
This Throttle Valve Delete is a direct-fit upgrade that bolts in place of the factory unit. With all hardware and seals included, you can get it installed fast and get back to doing what your truck was built for—hauling, towing, or just putting down power.
Important Product Information
Off-Road Use Only: The products sold on this website are intended for off-road use only, and may not be legal for use on public highways where pollution control laws apply.
Check Local Laws: Before purchasing and installing any of these parts, please check your local and state laws to confirm whether the modifications are legal in your area.
Professional Installation Recommended: These kits and parts are strongly recommended to be installed by professional mechanics only. Improper installation may lead to performance issues or damage to your vehicle. Unless specified differently on the product page, our parts do not include installation instructions. They are intended for individuals with a proficient understanding of mechanical systems and procedures. Like many aftermarket parts compatible with a variety of vehicles, minor adjustments or modifications may be necessary during the installation process. We cannot accept returns or offer refunds on the basis of an inability to complete the installation due to the absence of instructions.
Warranty: The use of these parts will void the warranty of your vehicle. Please confirm with your vehicle manufacturer before purchase and installation.
No Liability: Tuner Depot is not responsible for any damage or issues that may arise from the use of these parts.
Product Images: Product images are for illustrative purposes only and may differ from the actual product due to manufacturer design changes or improvements.
No Performance Guarantees: While these parts are designed to enhance the performance of your vehicle, no guarantees are made regarding the specific performance gains that will be achieved.
Shipping Policy at Tuner Depot
At Tuner Depot, we understand the importance of timely delivery for your performance parts. We're committed to ensuring a seamless shipping experience, striving to dispatch your orders with utmost efficiency and speed.
- Weather Conditions: Adverse weather conditions such as rain, snow, or sleet may affect delivery timelines. We will make every effort to minimize any delays.
- Holiday Periods: Please note that our shipping center will be closed during holidays. We will resume shipping promptly on the next business day. Allow for potential delays during peak seasons, but rest assured, we will keep you informed every step of the way.
- Staff Availability: Unforeseen circumstances can occasionally affect our staffing levels, possibly leading to minor delays. We are committed to swiftly resolving any issues to maintain our high standards of service.
- Choosing a selection results in a full page refresh.