WC Fab 2017-2019 L5P Duramax STAGE 3 High Flow Intake Bundle Kit
- 3.5 in. Intake horn with PCV port and Surge Ring
- Air box enclosure with durable dry filter and WC-Fab pre-filter cover
- Silicone Boots, O-Rings, Install Hardware and Stainless Steel T-Bolt Clamps included
- 3 in. Hot Side Intercooler Pipe
- 3.5 in. Cold Side Intercooler Pipe
- CNC Machined Flange with Double O-ring integration to eliminate the potential of boost leaks.
- OEM Clip Ring Design at Y-bridge connection replaced by high quality silicone boot and stainless steel t-bolt clamps
- Intercooler Outlet Clip
- Retains factory connection points and sensors
- Factory fit!
- Durable Powder Coated Finish
- Ceramic Coated 3.5 in. DOC Back Down Pipe
- Heat Wrap Pre-installed on Down Pipe
Description:
The Stage 3 upgrade for the 2017-2019 6.6L L5P Duramax equipped Chevrolet Silverado and GMC Sierra 2500 / 3500 HD trucks combines our Stage 2 High Flow Bundle and 3.5 in. Down Pipe into a single package providing increased air and exhaust flow for your turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory design that can contribute to lost power, boost leaks, and complete failures in hard working and high performance applications.
On the air intake side, our high flow fabricated intake pipe, intake horn, and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on 2017-2019 L5P Duramax Diesel for improved engine performance and sound. Significantly increases airflow to your turbo producing improved horsepower and torque and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. All aluminum 14 ga. construction features large diameter 4 in. piping with smooth aerodynamic bends. Improves intake air velocity, volume, and provides a more aggressive engine and turbo sound during acceleration. Air box is constructed of 10G aluminum sheet. The intake horn is over an inch larger than the OEM diameter and we experienced a 25HP Gain with our 3.5 in. turbo inlet when used with a Max Effort Tune.
Whats Included:
- Air-Box Enclosure
- Constructed of 10G aluminum sheet
- Removable air box lid for easy filter inspection
- Easy to install
- High-Flow Intake Pipe
- Large 4 in. diameter piping
- 14 ga. aluminium piping
- WC Fab Dry Filter
- Larger filter for more filter media
- Superior flow and filtration
- Better filtration than oiled filters
- WC Fab Filter Cover
- Prevent large debris from being trapped in your filter
- WC Fab High-Flow Intake Horn
- Higher Flowing than stock
- Includes an anti-surge feature
- 3 in. Driver Side Intercooler Pipe
- 14 ga. aluminum piping
- Increased durability and optimized flow
- 3.5 in. Passenger Side Intercooler Pipe
- Double O-ring seal
- Eliminate horsepower robbing boost leaks
- 3.5 in DOC Down Pipe Upgrade
- Ceramic coated
- Pre-wrapped in thermal isolation wrap
- Mates with OEM exhaust system
Air Box
High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure optimum durability and ease of installation. Removable air box lid element allows for easy visual inspection and maintenance of your WCFab filter with included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant free. The critical ram air duct seal has been moved to the bottom of the hood for a clean engine compartment appearance.
Intercooler Piping
After the turbo, our Stage 3 kit also upgrades the restricted 2-piece, resonator equipped, 2.5 in. diameter driver (hot) side intercooler pipe and leak-prone 2-piece plastic / rubber passenger (cold) side pipe with WCFab's heavy duty 3 in. diameter 1-piece Driver (Hot) Side and 3.5 in. diameter Passenger (Cold) Side L5P Intercooler Pipes. Made in the USA from high strength, heavy duty 14 ga. aluminum tube with smooth, aerodynamic mandrel bends for increased durability and optimized flow.
3 in. Driver Side pipe eliminates the OEM resonator and middle boot joint for improved flow and durability and includes high quality reinforced silicone boots and stainless t-bolt clamps for superior temperature resistance and boost pressure holding capabilities.
3.5 in. Passenger Side pipe features a CNC machined flange with a double o-ring seal and an upgraded silicone boot in order to withstand higher boost pressures than the factory components to increase reliability and eliminate blown factory boots and horsepower robbing boost leaks.
Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck.
DOC Down Pipe's
On the exhaust side our 3.5 in Down Pipe replace the restrictive crushed factory part for improved flow. Black Ceramic Coated and heat wrapped for improved thermal efficiency. These down pipes connect to the DOC (Diesel Oxidation Catalyst) outlet flange and mates with OEM exhaust system front pipe with the 4 bolt style flange connection and includes bungs for OEM sensors.***
Stage 3 bundle kits pair best with emissions compliant tuning and larger drop-in turbochargers.