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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
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Description
Wehrli Custom Fab WCF100191-SGB 4" Intake Kit W/Air Box Semi-Gloss BlkUpgrade the intake in your GM Silverado Sierra 6. 6L Duramax today with the Wehrli Custom Fab WCF100191 SGB 4" Intake Kit W Air Box Semi Gloss Blk from GAP. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. This design significantly increases airflow to your turbo producing improved horsepower and torque, quicker
Upgrade the intake in your GM Silverado/Sierra 6.6L Duramax today with the Wehrli Custom Fab WCF100191-SGB 4" Intake Kit W/Air Box Semi-Gloss Blk from GAP. This high-flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. This design significantly increases airflow to your turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration. High-quality hardware, silicone boot, seals, and stainless-steel t-bolt clamps ensure optimum durability and ease of installation. The removable air box lid element allows for easy visual inspection and maintenance of your WCFab filter with an included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant-free.
Features:
- Gloss Black Powder Coat Finish
- 4" Intake Pipe
- 144g Aluminum Construction
- Air Box & Lid Constructed Of 10g Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- Silicone Boot & Stainless Steel T-Bolt Clamps
- O-Ring Seal
- Installs Easily With Basic Hand Tools
- No Tuning Required
- Made In USA
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
4.1 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 3
Wobbly
Color: Grey
Wobbly and the metal bars keep coming off. Be aware. I’ve tripped over them. Be careful.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Very practical for the price.
Color: Black
Very practical for the price.
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Reviewed in the United States on May 25, 2026
★★★★★ 4
Good for a quick backdrop
This works well for what I needed – a simple background for my kids’ online school. It’s lightweight and very easy to put together, and it stands up fine without needing to mount anything.
The color is listed as black, but it’s more of a dark gray in person. Not a huge deal, just something to be aware of. It’s not super heavy duty, but it does the job for privacy and as a video backdrop.
Overall, a good, portable divider that’s quick to set up and works well for light use.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Essay to assemble
Color: Grey
Very nice. Did the job the way I wanted.
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Reviewed in the United States on April 28, 2026
★★★★★ 2
Low budget option
Color: Grey
Budget low quality if thats what youre looking for
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Reviewed in the United States on April 27, 2026
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