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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Wehrli 2007.5-2010 Chevrolet Duramax 6.6L LMM Stage 2 High Flow Intake Bundle Kit - Flat BlackSignificantly increases airflow to your turbo producing improved horsepower and torque and cooler intake temperatures by drawing cold air through the 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. Our 4. 8 in. turbo intake horn is the largest on the market providing a 20%
Significantly increases airflow to your turbo producing improved horsepower and torque and cooler intake temperatures by drawing cold air through the 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. Our 4.8 in. turbo intake horn is the largest on the market providing a 20% air flow improvement over stock. 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. After the turbo, our Stage 2 kit also upgrades the restricted 2.5 in. diameter driver (hot) side intercooler pipe and leak-prone 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 LMM 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 includes high quality reinforced silicone boots and stainless t-bolt clamps for superior temperature resistance and boost pressure holding capabilities. 3.5" Passenger Side pipe improves air flow over stock part by 47%! Features CNC machined flanges with a double o-ring seals and an upgraded silicone hump 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. The final and key component of this bundle is our signature high flow 3" Y-Bridge Kit which replacesThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2010 | Chevrolet | Silverado 2500 HD | LT |
| 2007-2010 | Chevrolet | Silverado 2500 HD | LTZ |
| 2007-2010 | Chevrolet | Silverado 2500 HD | WT |
| 2007-2010 | Chevrolet | Silverado 3500 HD | LT |
| 2007-2010 | Chevrolet | Silverado 3500 HD | LTZ |
| 2007-2010 | Chevrolet | Silverado 3500 HD | WT |
| 2007-2010 | GMC | Sierra 2500 HD | SLE |
| 2007-2010 | GMC | Sierra 2500 HD | SLT |
| 2007-2010 | GMC | Sierra 2500 HD | WT |
| 2007-2010 | GMC | Sierra 3500 HD | SLE |
| 2007-2010 | GMC | Sierra 3500 HD | SLT |
| 2007-2010 | GMC | Sierra 3500 HD | WT |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Think about where your Battery is!
Color: 14AWG Wiring Harness -1 Lead
Best things about this kit are the quality, price and speed that I received it! One problem, my car's battery is on the passenger side. The only downside to this kit is that had to cut and add wiring to the lines going to the switch. I wish the kit had plugs on both long wiring bundles so they were interchangeable as I don't need the relay's wires to be as long as I need the switch's wires to be! I give the kit 5 stars anyway because for the price, you cannot go wrong here. I believe it is well-made and it worked out great for my fog lights! Very easy to install with instructions and color diagram!
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Reviewed in the United States on December 17, 2022
★★★★★ 5
Excellent product , saves time and money
Color: 14AWG Wiring Harness -1 Lead
Good parts and pre wired real time saver for the money, just wish the cables were round just like the lights, Nilight makes great products. With excellent price. Can’t go wrong with these
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Reviewed in the United States on August 10, 2025
★★★★★ 5
Wiring harness
Color: 14AWG Wiring Harness -1 Lead
Great wiring harness, used on my rzr turbo s which fit great.
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Reviewed in the United States on January 10, 2026
★★★★★ 4
Cheap and easy light bar harness
Color: 14AWG Wiring Harness -1 Lead
Worked great only issue is figuring out how the backlighting to the switch goes. Seems like it could have been a little easier
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Reviewed in the United States on March 16, 2026
★★★★★ 5
It’s no mistake I bought two.
Color: 14AWG Wiring Harness -1 Lead
Easy to use and install. The cable length is great. We have used this on our farm sxs and now on the new one. It’s no mistake that we bought two. East to wire and can be done in just a few house in the garage.
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Reviewed in the United States on April 2, 2026