aFe BladeRunner 3” Cold Side Intercooler Tube – 2017–2019 L5P 6.6L Duramax
Replace Your Restrictive Factory Tube with aFe’s High-Flow, TIG-Welded Upgrade
The aFe BladeRunner 3” Cold Side Intercooler Tube is a must-have upgrade for any 2017–2019 Chevy Silverado or GMC Sierra HD equipped with the 6.6L L5P Duramax diesel engine. Say goodbye to the brittle, airflow-limiting plastic OEM charge pipe and unleash more torque, lower EGTs, and stronger throttle response with this bolt-on aluminum performance upgrade.
Made from 3-1/2” mandrel-bent, aircraft-grade aluminum tubing, this intercooler tube flows cooler air more efficiently to your intake manifold while withstanding extreme heat and boost pressure. Whether you’re towing, tuning, or racing — it’s designed to handle serious diesel performance.
Why Upgrade to the aFe BladeRunner Intercooler Tube?
- ✅ Replaces restrictive OEM cold-side charge pipe
- ✅ 3.5” mandrel-bent aluminum for max airflow & power
- ✅ Lowers EGTs and reduces turbo lag
- ✅ TIG-welded construction – built for high boost durability
- ✅ Includes a billet quick-connect adapter for a factory-style fit
- ✅ One (1) 1/8” NPT port for pressure sensors or meth injection
- ✅ Retains OEM air temp sensor location
- ✅ Finished in wrinkle black powder coat with laser-cut aFe logo badge
Compatible Vehicles – GM HD 6.6L L5P (2017–2019)
Chevrolet Silverado 2500HD / 3500HD
- WT, LT, LTZ, High Country
GMC Sierra 2500HD / 3500HD
- Base, SLE, SLT, Denali
Note: Cold-side installation only. Fits trucks with factory intercoolers and most aftermarket intake setups.
Perfect For:
- ✔️ Towing & heavy hauling applications
- ✔️ Tuned or deleted Duramax builds
- ✔️ Daily-driven trucks needing cooler EGTs
- ✔️ Diesel performance enthusiasts upgrading airflow
Product Specs:
- Tubing Diameter: 3.5 inches
- Material: Mandrel-bent 6061-T6 aluminum
- Finish: Wrinkle black powder coat
- Ports: 1/8” NPT sensor/meth port + OEM air temp sensor port
- Includes: Billet quick-connect adapter, 5-ply couplers, T-bolt clamps
- Pressure Tested: Couplers rated to 200 psi
- Install Time: ~1 hour, bolt-on fit
Installation Tips:
- Remove OEM cold-side charge pipe and couplers
- Install aFe billet adapter to intercooler
- Attach couplers, T-bolt clamps, and charge pipe to throttle body
- Use NPT port for sensors or meth kits as needed
Frequently Asked Questions
Will this fit my 2019 GMC Sierra 2500HD Denali?
Yes, this kit fits all 2017–2019 GM 6.6L L5P Duramax trucks including Denali and High Country trims.
Do I need tuning after install?
No tuning is required. It’s a bolt-on upgrade that improves airflow and durability instantly.
Can I install this at home?
Yes. Basic hand tools are all you need. Install typically takes 30–60 minutes.
Upgrade your L5P Duramax today with the aFe BladeRunner Intercooler Tube – built for power, designed for durability, and ready to handle anything your diesel throws at it.
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