Author: Lars – Diesel Performance Specialist at SPETUNER
15% OFF Diesel Performance Parts + Free Shipping Over $800
Use code NCE15 at checkout on eligible diesel parts.
If you’ve been waiting all year to upgrade your truck, our Black Friday diesel parts event is officially live. This is Spetuner’s biggest diesel Black Friday sale 2025, with savings across Ford Powerstroke, RAM Cummins, and GM Duramax platforms.
Below you’ll find exactly what’s on sale, how to use the discount code, and quick links to the most popular collections so you can move fast before stock runs out.
Live Black Friday Diesel Parts Deals
Here’s what’s active right now in our Black Friday 2025 diesel sale:
- 15% OFF eligible diesel performance parts
- Discount code: NCE15
- Free shipping on orders over $800
- When: Nov 21 – Dec 2, 2025
- Where: All deals live on SPETUNER.com
What’s Included in Our Black Friday 2025 Diesel Sale?
This isn’t a generic black friday auto parts sale. It’s focused on the race-only diesel hardware SPETUNER is known for:
- EGR system hardware for off-road builds (EGR components designed to improve airflow and reduce intake contamination)
- DPF race pipes & exhaust sections that cut restriction and backpressure on Powerstroke, Cummins, and Duramax
- CCV reroute solutions to help keep oil vapors out of your intake system
- High-flow intake elbows and charge piping included in specific platform kits for better charge-air flow
If you’ve been comparing Ford Powerstroke Black Friday diesel deals, Cummins performance upgrades, or Duramax Black Friday discounts, this sale is tuned exactly for that.
Important: All performance and race-only parts are intended for off-road, competition, and race use only where permitted by law. It’s your responsibility to check and follow local, state, and federal regulations before modifying your truck.
Featured Platforms & Recommended Starting Points
To make this easier, here are three quick-start paths based on your engine platform. These cards link straight into collections where the Black Friday diesel parts discounts apply.
Ford Powerstroke Black Friday Deals
Ideal if you’re running a 6.7L Powerstroke and want better flow, lower EGTs, and a cleaner underhood setup.
- EGR system hardware for 6.0L, 6.4L, 6.7L Powerstroke
- DPF race pipes & exhaust system options
- CCV reroute and supporting hardware
RAM Cummins Black Friday Diesel Deals
Best for 5.9L or 6.7L Cummins owners looking to unlock airflow and reliability for towing and off-road work.
- Race-only EGR components for 6.7L Cummins
- DPF race pipes and exhaust sections
- CCV reroute kits for late-model trucks
GM Duramax Diesel Parts Black Friday Sale
Perfect for L5P, LML, LMM, LBZ, LB7 owners wanting more power, less restriction, and stronger towing performance.
- Duramax-focused DPF race performance kits
- EGR system hardware and intake upgrades
- CCV reroute & filter supporting parts
If you’re specifically planning an L5P build, you can also review our L5P Duramax performance planning guide before you finalize your cart.
How to Get the Most Out of the Sale
1. Confirm Your Platform and Year
Before you dive into the collections, double-check:
- Your engine and platform (e.g., 6.7L Powerstroke, 6.7L Cummins, L5P Duramax)
- Exact model year and trim
- Any existing mods on the truck (especially previous tuning or exhaust work)
2. Decide Your Winter Build Goal
Instead of randomly filling the cart, choose one main goal:
- Stronger and safer towing performance for long grades
- Sharper throttle response and less lag in cold weather
- More reliable airflow and exhaust before the deep-winter season
Once you know your goal, it’s easier to pick the right combination of parts inside each collection.
3. Use the Free Shipping Threshold Strategically
Many customers build their cart like this:
- Add the main kit or major components they need
- Top up with clamps, sensors, gaskets, and small hardware
- Cross the $800 mark to unlock free shipping
That way you get both the 15% OFF and the freight savings, instead of paying shipping on multiple smaller orders.
Why a Longer Black Friday Window Helps You
Instead of a single-day rush, our diesel black friday sale 2025 runs from Nov 21 to Dec 2. That means you get:
- Time to compare different kit options for your platform
- Time to talk with your installer or plan a DIY weekend
- Time to verify fitment and read FAQs before you commit
It’s still first-come, first-served on inventory, but you don’t have to panic-buy. You can plan your build calmly and still capture the Black Friday diesel parts pricing.
Legal & Compliance Reminder
A quick but important note:
- Many components in this sale are race-only / off-road use only.
- Any part that alters or removes factory emissions equipment may not be legal for use on public roads in your area.
- It is your responsibility to understand and follow all relevant local, state, and federal regulations.
We want your truck to be faster and more reliable — and we want your build to be responsible.
Final Call: Your Black Friday Diesel Parts Window Is Open
From Nov 21 to Dec 2, 2025, remember these two keys for our Black Friday diesel sale:
- 15% OFF eligible diesel performance parts with code NCE15
- Free shipping on orders over $800
Whether you drive a Powerstroke, Cummins, or Duramax, this is the best time of the year to lock in serious savings on the parts you’ve been researching all season.

Next step: Jump into the collections, build your cart, and apply NCE15 at checkout before the Black Friday 2025 diesel sale ends.