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USA
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- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
For Your Every Summer RSVP, with Code: SUMMER15
Description
Wehrli Custom Fab WCF100344-FB 4" Intake Kit W/Air Box - Flat BlackUpgrade the intake and air box on your GM 6. 6L Duramax today with the Wehrli Custom Fab WCF100344 FB 4" Intake Kit W Air Box Flat Black from GAP. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces your diesel's restrictive plastic factory parts for improved engine performance. The new design significantly increases air flow to your turbo, producing improved horsepower and torque, quicker throttle
Upgrade the intake and air box on your GM 6.6L Duramax today with the Wehrli Custom Fab WCF100344-FB 4" Intake Kit W/Air Box - Flat Black from GAP. This high-flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces your diesel's restrictive plastic factory parts for improved engine performance. The new design significantly increases air flow to your turbo, producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity and 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. The critical ram air duct seal has been moved to the bottom of the hood for a clean engine compartment appearance.
Features:
- Flat Black Powder Coat Finish
- 4" Intake Pipe
- Air Box & Lid Constructed Of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Hardware
- Seal For Connection To Ram-Air Port On Hood
- High-Quality Silicone Boot
- Stainless Steel T-Bolt Clamps
- Powder Coating
- Installs Easily With Basic Hand Tools.
- No Tuning Required, Bolt-On
- Compatible With Stock Trucks. No Other Modifications Or Upgrades Necessary!
- 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
4.4 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Prints nice
Style: Ink
One of them was hard to install but finally installed it and the Others. It works and really prints nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
★★★★★ 5
Epson ink
Style: Ink
The EPSON 812 DURABrite Ultra Ink is excellent! It fit perfectly in my printer with no problems at all. The print quality looks sharp, clear, and professional colors come out bright and crisp every time. The ink lasts a long time, so it’s definitely worth the price. I’m very happy with it and will definitely buy again. Great product from Epson!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2025
★★★★★ 5
Epson 822 Magenta Ink
Size: 1 Count (Pack of 1)
Epson 812 Magenta ink is the best. Quality ink for a reasonable price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 5
Perfect for my Epson Printer
Size: 1 Count (Pack of 1)
Perfect for my Epson printer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 5
Worth every penny.
Size: 1 Count (Pack of 1)
Value for money and always works. Will buy again and again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
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