FITMENT
- 2017-2019 6.6L Silverado & Sierra Duramax L5P 2500HD 3500HD Diesel engine trucks.
- Note: Will NOT fit Cab & Chassis commercial-style trucks.
DESCRIPTION
Product Overview
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Restrictive exhaust geometry, high exhaust gas heat, and ongoing intake contamination severely compromise the power and efficiency of 6.6L L5P Duramax trucks. Restricted stock downpipes and DPF filters trap extreme under-hood heat and delay turbo spool, while the OEM EGR cooler chokes the intake manifold with sticky soot sludge and introduces potential coolant leaks. Additionally, unsealed harness plugs leave sensitive CAN-bus wiring exposed to road spray and mud after removing emissions sensors.
- This complete 6.6L L5P Upgrade Package eliminates primary breathing bottlenecks while fully protecting your truck's electronic network. Featuring a free-flowing turbo downpipe, precision EGR cooler removal hardware, and heavy-duty plug-and-play harness caps, it restores crisp throttle response, stops intake contamination, and delivers a reliable, high-efficiency diesel setup built to last.
Key Features
- Cuts restriction right where the turbine dumps its exhaust using high-flow piping, so the L5P VGT turbocharger builds boost noticeably sooner and the truck launches harder.
- Removes the factory EGR cooler so abrasive soot stops caking onto the intake valves, while the risk of internal coolant loss is eliminated for good.
- Comes with purpose-built connector plugs that close up the disconnected sensor harnesses, keeping moisture, dust, and corrosion away from your truck’s electronics.
- Replaces the restrictive exhaust canisters and crushed downpipe bends to stop fuel-draining regenerations and bring exhaust gas temperatures down sharply.
FAQ
Q: Why should the DPF pipe, downpipe, EGR delete, and CAN Bus plugs be combined?
A: Each component tackles a different part of the factory system. The downpipe and DPF pipe improve exhaust flow, the EGR delete cuts intake soot buildup, and the CAN Bus plugs keep vehicle communication working after the hardware changes.
Q: What advantage does the 3.5" turbo downpipe provide?
A: The larger 3.5" mandrel-bent downpipe eases restriction near the turbo outlet, helping improve exhaust flow and supporting better turbo response.
Q: Is a tuner included with this kit?
A: No. This kit includes hardware only: the DPF pipe, downpipe, EGR delete components, and CAN Bus plugs. A compatible tuning solution may be needed separately depending on your vehicle setup.
Q: Is there a version that also includes CCV reroute for full intake protection?
A: Yes. For a full package that brings together the DPF delete, downpipe, EGR delete, and CCV reroute in a single order, see the DPF/CCV/EGR All-in-One Kit.
