DOWN DIRTY 84
LLC

Merch & Digital Store

Apparel, winter gear, accessories, and digital tuning products — straight from the DD84 shop.

Apparel

Shirts & Sweatshirts

Comfortable daily wear for the shop and the street.

Long Sleeve Long Sleeve Tee
Long Sleeve Tee – Classic Minimalist
Clean, comfortable long-sleeve built for cool days and shop nights.
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Unisex
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Crewneck Crewneck Sweatshirt
Crewneck Sweatshirt – Classic Minimalist
Warm, durable crewneck with subtle branding — perfect for cooler weather.
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Unisex
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Toddler Toddler Long Sleeve Tee
Toddler Long Sleeve Tee
Comfortable toddler long sleeve featuring DD84 branding — built for little gearheads.
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Kids
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Headwear & Winter

Caps, Beanies & Cold-Weather Gear

Stay warm and rep DD84.

Trucker Trucker Cap
Trucker Cap – Classic Mesh Back
Breathable mesh-back cap with DD84 style.
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Mesh Back
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Beanie DD84 Embroidered Knit Beanie
DD84 Embroidered Knit Beanie
Classic cuff beanie with clean embroidery.
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One Size
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Pom Beanie Pom-Pom Knit Beanie
Pom-Pom Knit Beanie
Cozy winter cap with embroidery and pom top.
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Winter
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Gaiter Winter Neck Gaiter
Winter Neck Gaiter (Drawstring)
Adjustable gaiter for cold-weather work or rides.
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Cold Weather
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Accessories

Stickers & Shop Extras

Sticker Neon Green Sticker
DD84 Logo Sticker — Neon Green
Glossy vinyl decal built to pop on cars, laptops, and toolboxes.
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Vinyl
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Candle DD84 Candle
Engraved DD84 14oz Scented Soy Candle
Automotive-themed candle with DD84 engraving — perfect shop gift item.
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14oz
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Digital

Tunes, Courses & Checklists

Instant delivery digital products + tuning resources.

Tune P01 Base Tune
P01 Base Tune — 5.3 LS (Chop Cam + 4L60E)
Pre-made base calibration for specific LS setups.
Digital
GM / P01
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Review LS Cam Swap Base Tune Review
LS Cam Swap Base Tune Review — HP Tuners
Professional review focused on cam swap drivability and safety.
Service
HP Tuners
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Checklist LS Cam Swap Checklist
LS Cam Swap Tuning Checklist — HP Tuners (Gen 3/4)
Step-by-step checklist for setup, logging, and tuning validation.
Digital
PDF
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PDF DD84 Performance Maintenance Checklist PDF
DD84 Performance Maintenance Checklist (PDF)
One-page checklist for performance vehicles — quick, clean, and printable.
Digital
Instant
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PDF DD84 Tuned Vehicle Maintenance Checklist PDF
DD84 Tuned Vehicle Maintenance Checklist (PDF)
Built for tuned/boosted/E85 vehicles with logging + pressure targets.
Digital
Instant
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Course S550 Coyote Tuning Course
HP Tuners S550 Coyote Tuning Course (2015–2023)
Beginner → Intermediate. Logging, drivability, fueling & spark safety for NA + boost.
Digital
Ford
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GM / P59 2003 GMC Sierra 1500 Stage 1
2003 GMC Sierra 1500 4.8L – Gen 3 P59 (OS 12579405)
Platform-specific tune package. See listing for included mods/requirements.
Digital
GM
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Stage 1 2013 Audi Q5 Stage 1 Tune
Stage 1 ECU Tune – 2013 Audi Q5 3.0T (Simos 8.5)
Stage 1 calibration package. See listing for octane/fuel support and requirements.
Digital
Audi
Buy Details

Digital products deliver instantly after checkout on your shop.

DOWN DIRTY 84
LLC

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