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SKU #: FPE-INTAKEHORN MPN #: FPE-INTAKEHORN

Fleece Performance High Flow Intake Horn 01-04 6.6L LB7 GM Duramax

$99.75
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Description
Increase your LB7’s potential with this simple but effective upgrade. Back-to-back dyno pulls showed an increase of 15hp with this Fleece Performance high flow LB7 intake horn – that’s about the cheapest 15hp from a bolt on you’ll find anywhere!

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Increase your LB7’s potential with this simple but effective upgrade. Back-to-back dyno pulls showed an increase of 15hp with this Fleece Performance high flow LB7 intake horn – that’s about the cheapest 15hp from a bolt on you’ll find anywhere!

NOT LEGAL FOR SALE OR USE IN CALIFORNIA
Vehicle Fitment
2001-2004 6.6L GM Duramax LB7
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
About Fleece Performance Engineering
Browse Fleece Performance Engineering Parts Online by Make, Model, and Year.

Fleece Performance Engineering is a customer-centric diesel performance company that specializes in the development and manufacturing of innovative and extremely forward-thinking products to improve upon the performance and reliability of your Cummins, Duramax, or Powerstroke. Originally operating from a shop on their family farm, they have now grown to a full-scale operation that excels in air and fuel-related components for light-duty diesel. A continuous focus on product quality and the creation of new design principles before the competition is what keeps Fleece Performance growing by leaps and bounds year after year and at the forefront of the winners circle. Many know Fleece for its line of Cheetah Turbos, PowerFlo Lift Pumps, and 10mm Stroker Pumps, but it goes far beyond! From the simple, yet widely popular exhaust manifold stud kits that eliminate the troublesome factory manifold hardware to full-blown race engines via their Freedom Racing Engines division, they are truly a "one-stop shop!" And no, Fleece isn't "just" for the hot rod diesel market, they've got kits and components for every level of diesel truck owner.

TIMELINE OF FLEECE PERFORMANCE ENGINEERING:
  • 2008: Fleece Performance Engineering was established in North Salem, IN by Brayden and Chase Fleece. Both had a passion for continuously innovating and improving upon products already on the market. Brayden's 2004.5 LLY Duramax became the test bed to develop the TurboBrake and Duramax Cheetah, while Chase's 2002 Cummins was one of the first Cummins pickups to integrate an Allison Transmission.
  • 2012: Fleece Performance upgrades both facility and location by relocating to Nitro Alley in Brownsburg, IN situated among some of the top racing leaders in the world.
  • 2014: Fleece Performance acquires the area's premier engine machine shop, Freedom Racing Engines. The acquisition enables Fleece Performance to expand the engine development program and product offerings. Today, Fleece Performance and Freedom Racing Engines build some of the most competitive engines in the industry.
  • 2018: Fleece Performance breaks ground on a new 75,000 sq. ft. facililty in Pittsboro, IN.
  • 2019: Fleece Performance and Freedom Racing Engines relocates to its new facility in Pittsboro, IN. The all new headquarters provides additional space for product development, production and work areas, assembly and testing, a larger warehouse, as well as four engine dynamometers, and two-story office space.
  • 2020: Fleece Performance receives ISO9001:2015 Certification.
  • 2021: Fleece Performance Engineering was voted as one of the Best Places to Work in Indiana by the Indiana Chamber of Commerce.
  • 2022: Fleece Performance Engineering was voted again as one of the Best Places to Work in Indiana by the Indiana Chamber of Commerce.

As always, if you have any questions about which Fleece turbo, fuel, engine, or other product is right for you, do not hesitate to give us a call and we would be happy to assist.

Video
Product Overview: Fleece Performance High Flow Intake Horn 01-04 6.6L Duramax LB7
The faster you can get air in, the faster you can get it out. This is a basic truth for diesel engines. Your LB7’s stock intake horn is not helping you with this basic truth, at all. Fleece Performance Engineering solves that issue with their High Flow Intake horn. Do your 2001-2004 6.6L Duramax a favor, and let it breathe.

Overall rating: 4.928571 / 5 from 14 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["fit","quality","video","install","turbo","wrench"].

Review highlights

Reviews

Good product

"Pretty simple install & definitely helps."

James (5/5)

Great Quality

"This product is much better made than the factory one. The porting for better airflow is very nice. I would recommend watch a YouTube video for getting the bolts out. Its very easy once you know the trick! https://m.youtube.***/watch?v=7ciFfXMIvec&pp=ygUXbGI3IGludGFrZSBob3JuIGluc3RhbGw%3D"

Curtis W. (5/5)

Perfect Fit and Easy Install

"Great quality product, and I would definitely buy again. I recommend watching some YouTube videos prior to installing. It was very simple to install after seeing some great ideas on how to easily access the bolts."

Curtis W. (5/5)

You can really hear the turbo

"Super easy to install especially being able to use the oem screws"

Oscar C. (5/5)

Fleece intake horn

"I have never done a review before but this one deserves one. Fleece etched the bottom bolt holes so you can pre thread your bolts before installing the intake horn, which makes it incredibly easier to install especially for a noobie like me. Definitely a increase in power and significantly more turbo noise. Will continue to buy fleece products from now on, thanks guys!"

Chris (5/5)

Easy install

"100$ for something like an intake horn made me really question doing it for a while but the quality was good and I can hear and feel a difference in the truck."

Ely E. (5/5)

Bitch of a replacement

"Very awkward and difficult to get off the stock. But with the new cut slots of this part will make future work slightly easier. Not alot of space to work with in there. The part itself seems to go well with a cold air intake. Seem like my stock truck is getting the air she is sapost to. No more smoke when flooring it"

Landyn (5/5)

Awesome

"Awesome part really made a difference on my lb7"

Davin O. (5/5)

Holy cow

"The truck woke up after installing this and taking that 300k mile factory intake horn on. The turbo instantly got more noticeable as far as the whistle and seemed to spool faster with the added air flowing into it."

Zachary D. (5/5)

Fleece performance high flow intake horn

"Seems like a good product pretty easy install, it reused factory hardware which I like over having to use Allen head bolt like every other manufacturer. Paint job wasn’t all the great has some run marks and the gasket wasn’t perfectly lined up with the holes but just widened one out and was good to go."

Francisco M. (4/5)

Q&A

Does this part come powder coated or painted? The picture shows it not painted, but looks like some people may receive not painted.
These do come uncoated.
is this supposed to work with the factory bolts?
This elbow is designed to work with your factory bolts. -DPP Mark
Is this a drop in replacement for the stock in take horn?
Yes, it is. -Ben