Red, White & Boosted

Every deal, one page. Tap any tile to shop.

SunCoast transmissions 10% off through July 31SunCoast transmissions 10% off through July 31Shop →Randy's Transmissions free shipping + flexplate — call to orderRandy's Transmissions free shipping + flexplate — call to orderShop →Mopar Cummins ECM $2,600 out the door — 2019-2021 6.7L, ideal tunable swap for 2022-2024Mopar Cummins ECM $2,600 out the door — 2019-2021 6.7L, ideal tunable swap for 2022-2024Shop →Free EGT probe with Edge CTS3 — $200 value through Aug 31 - ONLY FOR RETAIL PurchasesFree EGT probe with Edge CTS3 — $200 value through Aug 31 - ONLY FOR RETAIL PurchasesShop →

Shop the deals

Shop the Sale

 Dates, discounts, and how each deal works.

FAQ's for the Sale

When does the Red, White & Boosted sale run?

  • The core sale — 25% off tune files and 10% off Dieselr hard parts — runs July 1–6, 2026.
  • A few partner deals run longer: SunCoast transmissions through July 31, the Edge CTS3 + free EGT probe through August 31, and Calibrated Power Stealth turbos on July 4 only.

Do I need a discount code or coupon? 

No. Retail discounts apply automatically in your cart and at checkout — there's no code to enter.

How much can I save?

Retail customers get 25% off all DIESELR, Chaos, and GDP tune files and 10% off Dieselr-branded hard parts. Partner deals add 10% off SunCoast transmissions and Stealth turbos, a free $200 EGT probe with any qualifying Edge CTS3, and a $2,600 out-the-door price on the Mopar Cummins ECM.

Do dealers get extra off? 

Yes. Dealers receive an additional 10% off tune files and hard parts on top of their existing dealer pricing. Sign in to your dealer account to see it applied.

Which trucks are covered?

Ford Powerstroke (6.0L, 6.4L, 6.7L), GM Duramax (LB7 through L5P), and RAM Cummins (5.9L and 6.7L), plus EcoDiesel. Choose your platform and year on any product page to confirm fitment.

Which tune files are included?

Every DIESELR, Chaos, and GDP custom tune file — single tunes, tune packs, and transmission tuning across all supported platforms.

What counts as a Dieselr hard part?

Dieselr-branded hardware — EGR upgrade kits, exhaust, intakes, and related parts. Carried brands like SunCoast, Calibrated Power, and Edge have their own deals above.

How do I claim the free Edge EGT probe?

Buy any qualifying Diesel CTS3 (Insight, Insight+, or Evolution) between July 1 and August 31, then redeem your free EAS EGT Probe Kit — a $200 value — at edgeproducts.com/freeeas-promo.

Can I use the Mopar ECM on a 2022–2024 Cummins?

Yes. While it's listed for 2019–2021 6.7L Cummins, it's the ideal ECM swap for 2022–2024 6.7L Cummins — it makes the truck tunable and saves your original factory ECM. The sale price is $2,600 out the door (free shipping, no core charge, no downtime with our send-in service), limited to 200 units.

How do I order the Randy's transmission deal?

Randy's deals — free shipping and a free flexplate on 6R140 Stages 1–3 and 68RFE Stages 1–4 — are call-in only. Call our sales team at 403-795-4399 ext 109 to order.

Can I combine deals?

Each product discount applies to its own items, so a cart with a tune file and a Dieselr part gets both. Dealer pricing and the partner promos follow their own terms.

When will my order ship?

Most orders ship promptly. The Mopar ECM is in limited supply and may take a few extra days to ship — we'll note timing at checkout.

Prices in USD. Discounts apply July 1–6, 2026 unless noted (SunCoast through July 31; Edge through August 31; Stealth turbos July 4). Retail discounts apply automatically; dealer pricing requires sign-in. Randy's transmission deals are call-in only.