What Fleece Performance Engineering does

Fleece Performance Engineering, Inc. is a privately held US manufacturer of aftermarket diesel performance products, founded in 2006 and headquartered in Pittsboro, Indiana. The company designs, engineers, and distributes bolt-on and assembly-level components for the three dominant heavy-duty diesel pickup platforms in North America — Dodge/Ram Cummins, GM Duramax, and Ford Powerstroke — spanning model years 1989–2024. Its core product architecture centers on proprietary turbocharger compressor wheel technology (the Cheetah series with exclusive 63mm FMW forged mill work), in-tank dual gerotor lift pumps (PowerFlo) supporting up to 800 horsepower, and complete long-block engine assemblies (Freedom Series Street and HD). Supporting lines include fuel filtration kits, sending units (SureFlo, US Patent D1,114,168), turbo accessories, cylinder heads, electronics pigtails, and co-branded synthetic diesel oils developed with AMSOIL. The company holds CARB Executive Orders and SEMA certifications across its major product lines, enabling emissions-compliant sales nationwide.

Fleece operates a hybrid distribution model: direct-to-consumer through its e-commerce storefront (fleeceperformance.com), an authorized dealer network accessed via an online dealer locator, and a recently launched retail presence through Witt Family NAPA Auto Parts locations across Indiana, Michigan, and Ohio. Pricing is unit-based across the catalog, with premium long blocks priced at $11,999–$15,999, turbochargers at $1,783–$3,199, lift pumps around $829, and accessories spanning $18–$471. Its primary customer segments are diesel pickup enthusiasts seeking horsepower and torque upgrades, commercial fleet and work-truck operators requiring durable heavy-duty components, and aftermarket dealers and installers sourcing CARB-compliant parts.

The September 2024 acquisition of Concept Performance added foundry operations and LSR/LTR builder blocks, enabling vertical manufacturing integration and entry into the gasoline engine market. Forward-looking expansion includes a planned spring 2026 co-branded AMSOIL lubricant line extending into consumables with recurring revenue potential. The company maintains ISO 9001:2015 certification at its Pittsboro facility and has been recognized as a Best Place to Work in Indiana in 2021, 2022, 2024, and 2025.

Name

Fleece Performance Engineering

Legal name

Fleece Performance Engineering, Inc.

Website

https://fleeceperformance.com

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Fleece Performance Engineering is a privately held Indiana-based manufacturer of aftermarket diesel performance products — turbochargers, lift pumps, fuel systems, and engine assemblies — serving Dodge Cummins, GM Duramax, and Ford Powerstroke pickup owners across the United States through direct e-commerce, dealer, and NAPA retail channels.

Ownership category

akta.pro rank

Product category

Aftermarket Diesel Performance Parts

NAICS

Pump and Compressor Manufacturing (33391), Motor Vehicle Gasoline Engine and Engine Parts Manufacturing (336310), Petroleum Lubricating Oil and Grease Manufacturing (324191)

SIC

Wholesale-Motor Vehicle Supplies & New Parts (5013), Engines & Turbines (3510)

akta.pro primary industry

Aftermarket Performance & Tuning Products Manufacturing (Intakes/Turbos/ECU Tuners/Superchargers) (IMACANAN)

akta.pro secondary industries

Aftermarket Exhaust & Emissions Components Manufacturing (Mufflers/Catalysts/DPF/EGR) (IMACANAE), Aftermarket Fluids, Lubricants & Chemical Products Manufacturing (Oils/Coolants/Additives/Cleaners) (IMACANAK)

Keywords

• Diesel performance parts
• Aftermarket turbochargers
• Fuel system components
• Heavy-duty diesel trucks
• Engine long blocks

Headquarters

HQ city

Brownsburg

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Aftermarket Performance Parts Sales: Direct-to-consumer and dealer network sales of diesel performance products including turbochargers, lift pumps, fuel systems, cylinder heads, and engine components. E-commerce platform with dealer locator for offline sales.
2. Co-branded Products: Future revenue stream through AMSOIL partnership launching co-branded lubricant line planned for spring 2026.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Fleece Performance Engineering designs, manufactures, and sells aftermarket performance parts for heavy-duty diesel pickup trucks, including proprietary Cheetah turbochargers, PowerFlo in-tank lift pumps, SureFlo sending units, CP3K fuel pumps, and Freedom Series cylinder heads and long block engine assemblies for Dodge Cummins, GM Duramax, and Ford Powerstroke diesel engines. Products are sold direct-to-consumer via fleeceperformance.com and through an authorized dealer network, with recent expansion into NAPA retail stores and co-branded AMSOIL lubricants.

Product overview

Fleece Performance Engineering is a diesel performance products manufacturer offering a comprehensive portfolio of bolt-on performance parts and engine assemblies for Dodge Cummins, GM Duramax, and Ford Powerstroke diesel engines spanning model years 1989-2024. The product lineup centers on the Cheetah Turbocharger series (featuring proprietary FMW compressor wheel technology), PowerFlo Lift Pumps and SureFlo Sending Units (forming the core fuel system offerings), and Freedom Series Long Blocks and Cylinder Heads (premium engine assembly components). Supporting products include fuel filtration kits (heated and non-heated), turbo accessories (drain tubes, oil feed lines, manifold studs), electronics (sensor pigtails, harnesses), and Freedom Series synthetic diesel oil (co-developed with AMSOIL). Recent expansion includes LSR/LTR builder blocks acquired from Concept Performance to enter the gas engine market, plus upcoming AMSOIL co-branded lubricants and NAPA retail distribution partnerships. Products are sold through dealers and direct-to-consumer across the United States.

Differentiator

Problem solved

Functional benefit

Brands

• Freedom Series: Product line including Freedom Series long blocks, cylinder heads, and synthetic diesel oils developed in partnership with AMSOIL
• Freedom Racing Engines

Products and services

• Cheetah Turbochargers Performance turbochargers with exclusive 63mm FMW compressor wheel and Inconel turbine wheel technology; stock-appearing drop-in replacements for Cummins, Duramax, and Powerstroke diesel engines, supporting up to 700 RWHP.
• PowerFlo Lift Pumps In-tank performance lift pumps with dual Gerotor pumps supporting up to 800 hp including dual CP3 pump configurations; retains factory water-in-fuel sensor and fuel heater, installs directly in tank without tank modifications. Available for Dodge Cummins, Ford Powerstroke, and GM Duramax.
• SureFlo Performance Sending Units Performance fuel sending units designed for aftermarket lift pump applications with active fill bucket design; factory-style quick disconnects and billet aluminum construction eliminate tank cutting, drilling, or sumps. Universal -8 AN ports for custom fuel setups.
• CP3K Fuel Pump Modified Bosch CP3 fuel pump for 6.7L Cummins engines that eliminates the factory fuel flow restriction above 3,000 RPM and maintains desired fuel rail pressure throughout the RPM range; no core charge required.
• Freedom Series Long Blocks Complete engine long block assemblies for 2013–2018 6.7L Cummins in Street ($11,999) and Street HD ($15,999) configurations, including cylinder heads, valvetrain, oiling, and cooling systems fully machined and assembled.
• Freedom Series Cylinder Heads Aftermarket Freedom Series cylinder heads for Cummins engines, available in Street configuration for 5.9L and 6.7L applications.
• Freedom Series Synthetic Diesel Oil 100% synthetic diesel engine oil co-developed with AMSOIL; available in 5W-40, 10W-30, and 15W-40 viscosities, providing turbo cleanliness, soot control, and wear protection for diesel pickups equipped with Fleece Performance products.
• Heated Fuel Filter Conversion Kit Full-feature auxiliary heated fuel filter kit with integral high-flow fuel heating element for 2003–2018 Dodge Cummins; includes Donaldson 3-micron fuel filter, water separator, CP3 feed fittings, and WIF sensor.
• Non-Heated Fuel Filter Conversion Kit Non-heated fuel filter conversion and line kit for 2003–2018 Dodge Cummins; includes Donaldson 3-micron fuel filter, water separator, and all necessary AN and barb fittings to connect the lift pump to injection pump.
• Under Bed Fuel Filter Assembly Direct replacement fuel filter base for 2019–2024 Ram 2500/3500 with 6.7L Cummins; converts to a Donaldson spin-on canister filter with WIF sensor and optional high-flow fuel heater. Replaces MOPAR 68358393AA.
• Turbo Drain Tube Kit Patent pending silicone hose drain tube kit for 6.7L Cummins VGT turbochargers; larger ID smooth silicone hose with anodized billet aluminum fittings and integral O-rings.
• Turbocharger Oil Feed Line Replacement turbocharger oil feed line kit for Holset turbochargers on 1991–2018 Dodge Cummins; smooth bore Teflon hose with AN fittings and protective high-temperature sleeve.
• Exhaust Manifold Stud Kit Stainless steel exhaust manifold stud kit for Cummins engines made from aged 630 stainless steel with 7mm external hex head; includes 12-point nuts and washers, impervious to rust and corrosion.
• Freedom Series LSR/LTR Builder Blocks LSR (Long Stroke Race) and LTR (Long Stroke Touring/Race) engine builder blocks produced via in-house foundry operations acquired through the September 2024 Concept Performance acquisition, extending the Freedom Series platform into the gas engine market.
• Freedom Racing Engines Apparel and Merchandise Branded apparel and merchandise line under the Freedom Racing Engines sub-brand, including hats ($30), t-shirts ($25), and hoodies ($45) featuring Fleece Performance and Freedom Racing Engines logos.

Quantifiable outcome

• PowerFlo Lift Pump supports up to 800 hp including dual CP3 pump configurations
• +3 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered major and core.

• AMSOILmajorStrategic or Co-development Partner · 1 December 2025New partnership with AMSOIL to introduce a co-branded line of lubricants planned for spring 2026. Freedom Series Synthetic Diesel Oil products already available as result of AMSOIL partnership for advanced diesel formulation.
• Witt Family NAPA Store LocationsmajorChannel Partner/ Reseller/ Distributor · 1 December 2025New retail distribution partnership marking the company's first retail distribution across Indiana, Michigan, and Ohio. NAPA partnership provides physical retail presence for Fleece Performance products.
• Concept PerformancecoreStrategic or Co-development Partner · 1 September 2024Acquired in September 2024, Concept Performance is a manufacturer of LSR and LTR builder blocks. The acquisition expands Fleece Performance's manufacturing capabilities with dedicated foundry operations and strengthens its entry into the gas market.
• AMSOIL (Freedom Series Products)coreStrategic or Co-development PartnerOngoing partnership producing Freedom Series Synthetic Diesel Oil - advanced formulation developed jointly by AMSOIL and Fleece Performance Engineering for diesel pickup trucks equipped with Fleece products.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Holset (Cummins Turbo Technologies): Holset is Cummins' owned turbocharger brand and the OEM supplier for Fleece's target engines. While not a direct aftermarket competitor, Holset defines the baseline turbo technology that Fleece's Cheetah series replaces, making it the most important technology benchmark in Fleece's category.
• Garrett Motion: Garrett is a global leader in turbocharger technology serving both OEM automotive and performance aftermarket markets. While their aftermarket division competes with Fleece's Cheetah turbo line, Garrett operates at much greater scale across many vehicle categories and OEM supply relationships.

Direct peers

• Banks Power: Banks Power designs and manufactures diesel and gasoline performance products including turbochargers, exhaust, intake, and tuning for heavy-duty pickup trucks (Cummins, Duramax, Powerstroke). Direct overlap with Fleece across product categories and customer base of diesel truck enthusiasts.
• Industrial Injection: Industrial Injection specializes in diesel fuel injection systems, turbochargers, and performance engine components for Cummins, Duramax, and Powerstroke applications. Closely comparable product line to Fleece's fuel system and turbo portfolio targeting the same diesel performance buyer.
• BD Diesel Performance: BD Diesel is a major manufacturer of aftermarket performance parts, turbochargers, and engine components for Dodge Cummins, Ford Powerstroke, and GM Duramax diesel trucks. Competes head-to-head with Fleece in turbochargers, fuel systems, and engine assemblies for the same diesel enthusiast segment.
• S&B Filters: S&B Filters designs and manufactures cold air intakes, filters, and filtration products for diesel and gasoline trucks. Comparable channel strategy (DTC + dealer network) and overlapping diesel pickup truck customer base with Fleece Performance.
• Magnum Diesel (formerly PPEI): Magnum Diesel is a diesel performance tuning, turbo, and fuel system specialist serving Cummins, Duramax, and Powerstroke owners. Direct overlap with Fleece in turbocharger swaps, fuel system upgrades, and tuning for the diesel pickup enthusiast market.
• H&S Performance (XDP): XDP (Xtreme Diesel Performance) distributes aftermarket diesel parts and manufactures select performance components for Cummins, Duramax, and Powerstroke trucks. Comparable in product breadth and channels (e-commerce + dealer network) to Fleece Performance Engineering.
• AFE Power (aFe): aFe Power manufactures aftermarket performance products including cold air intakes, exhaust systems, and fluid filters for diesel and gasoline trucks. Overlaps with Fleece in diesel truck performance parts distribution channels and enthusiast customer base.

Others

• AMSOIL: AMSOIL is Fleece's co-branded lubricants partner and a leading synthetic lubricant manufacturer. Relevant as a strategic partner and adjacent category player; their dealer network overlaps with diesel truck enthusiasts and they compete loosely through broader retail lubricant distribution.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/fleecepe
• YouTubeyoutube.com/channel/UC7x-4R2zASMFK1ynKwOmHjg
• Facebookfacebook.com/pages/Fleece-Performance-Engineering/269231281866?ref=ts&fref=ts
• Instagraminstagram.com/fleeceperformance

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Fleece Performance Engineering