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Wehrli LML Duramax Stage 2 High Flow Bundle Kit, Bengal Red | Chevrolet Silverado 2500HD/3500HD (11-16) (WCF100439-BR)

Wehrli LML Duramax Stage 2 High Flow Bundle Kit, Bengal Red | Chevrolet Silverado 2500HD/3500HD (11-16) (WCF100439-BR)

WCF100439-BR

In stock

$2,322.18 USD
$2,394.00 USD $2,322.18 USD
Special Discounts May Apply at Checkout Sold out

The Wehrli WCFab Stage 2 High Flow Bundle combines a Stage 1 High Flow Bundle with a Stage 2 Cold Air Intake Kit to increase airflow, improve efficiency and throttle response, and help the turbo spool faster. Its fabricated aluminum intake and air box with a dry filter replace restrictive factory plastic components, while 4-inch piping with smooth bends supports improved intake velocity. A 4.8-inch cast-aluminum turbo intake horn reduces restrictions, and the cold-air design draws air through the inner fender to help lower intake temperatures. The kit also includes high-flow intercooler pipes, a Y-Bridge, an upper intake manifold rated for 40% more airflow than stock, and a 3-inch fabricated aluminum upper crossover pipe. Total airflow is improved by 33% over stock.

Designed for 2011–2016 trucks equipped with the 6.6L LML Duramax, this bundle is intended to address restrictive factory intake and charge-air components in hard-working and high-performance applications. It is compatible with OEM and upgraded drop-in turbos, the factory throttle valve, and EGR, and retains the factory intake air heater for cold-weather performance. The hot-side intercooler pipe replaces the OEM two-piece 2.5-inch pipe with a 3-inch tube; the cold-side pipe replaces the factory plastic two-piece assembly with a one-piece 3.5-inch, 14-gauge aluminum tube. Installation hardware, silicone boots, seals, and stainless-steel T-bolt clamps are included. The air-box lid is removable for filter inspection and maintenance. The kit is offered in Bengal Red and requires no additional modifications or tuning.

Overview

The WCFab Stage 2 upgrade for 2011-2016 LML 6.6L Duramax combines a Stage 1 High Flow Bundle and Stage 2 Cold Air Intake Kit into a package for increased airflow to your engine for improved efficiency, throttle response, and turbo spool. Eliminates weak points in OEM design contributing to lost power, boost leaks, and complete failures in hard-working and high-performance trucks. Fabricated aluminum intake and air box with dry filter replaces restrictive plastic OEM parts for improved engine power. Significantly increases airflow, producing improved horsepower and torque, quicker throttle response, and cooler intake temps by drawing cold air through the inner fender. Large diameter 4" piping with smooth aerodynamic bends improves intake air velocity. Removable air box lid for easy inspection and maintenance of your WCFab filter. 4.8 in. Cast Aluminum Turbo Intake Horn removes restrictions to improve turbo spool and top-end power. Eliminates factory resonator for improved appearance and more aggressive turbo sound. Compatible with OEM and upgraded drop-in turbos. New Hot Side Intercooler Pipe replaces the OEM two-piece 2.5” pipe with a high flow 3" tube. New Cold Side Intercooler Pipe replaces the factory plastic two-piece pipe with a high flow, 14 ga. aluminum one-piece 3.5" tube. Hardware, silicone boots, seals, and stainless steel t-bolt clamps included for install. A Y-Bridge finishes off the kit. The OEM bridge is a restrictive part creating a bottle neck in the air intake tract that limits engine performance. Includes our high flow upper intake manifold (40% more airflow than stock) and a 20% larger than stock, 3" fabricated aluminum upper crossover pipe to take full advantage of the larger inlet diameter Y-Bridge. Improves total air flow by 33% over stock. Incorporates factory intake air heater for cold weather performance. Compatible with OEM throttle valve and EGR. Finished in your choice of custom colors. No additional modifications or tuning required.

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