Cat-Back System

The 3" diameter into dual 2.25" Borla(r) Cat-Back(tm) system was specifically designed to enhance the power and sound of the Ford F-150 equipped with 3.3L engine. The split rear exit configuration replaces the single factory tail pipe, and has single 4" round black chrome on T-304 stainless steel tips on each tail pipe. Using Borla(r) Stainless Steel Polish p# 21499 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. A system with bright chrome on T-304 stainless steel tips is also available. This system features the popular S-Type sound with no drone. Additional systems are available with different options for sound level, tip finish and tip exits. Add adapter 60556 for Crew Cab with Standard Bed (6' 7") 157.2" Wheelbase vehicles. Add adapter 60564 for Extended Cab with Long Bed (8' 2") 164.1" Wheelbase vehicles. Borla(r) Cat-Back(tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla(r) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium, high-quality T-304 stainless steel, to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and computer numerical control (CNC) manufacturing ensures an accurate fit. All this is backed by our unsurpassed Million Mile Warranty. System Features: Cat-Back(tm) System Split Rear Exit 4" Round Black Chrome On T-304 Stainless Steel Tips S-Type Sound Level T-304 Stainless Steel Construction Bolt-On Installation Million Mile Warranty

Additional Information

S-Type Cat-Back(tm) Exhaust System 2021-2025 Ford F-150 3.3L V6 Automatic Transmission 2 & 4 Wheel Drive 4 Door Crew Cab With Short Bed (5' 7")/ Extended Cab With Standard Bed (6' 7") 145.4" Wheelbase.

Application Summary

2021-2025 Ford F-150 3.3L V6 Cat-Back(tm) Exhaust System S-Type

Part Type

Exhaust System Kit

Product Overview

The BORLA Cat-Back system 140878BC was specifically designed to enhance the power and sound of the Ford F-150 equipped with 3.3L engine. It includes 4" black chrome on T-304 stainless steel tips and a split rear exit configuration. Using BORLA Stainless Steel Polish p# 21461 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. The entire system is made of T-304 stainless steel and utilizes computer numerical control (CNC) manufacturing techniques that ensure an accurate fit. This system features the S-Type sound level that gives you an aggressive sound level with no drone. It is also available with bright chromed tips (part number 140878). There are also systems available for the 3.3L F-150 that offer different options for sound level, tip finish and tip exits. Add adapter 60556 for Crew Cab with Standard Bed (6' 7") 157.2" Wheelbase wehicle. Add adapter 60564 for Extended Cab with Long Bed (8' 2") 164.1" Wheelbase vehicles. All this is backed by our unsurpassed Million Mile Warranty.System Features: Cat-Back System Split Rear Exit 4" Black Chrome On T-304 Stainless Steel Tips S-Type Sound Level T-304 Stainless Steel Construction Bolt-On Installation Million Mile Warranty

• Add adapter 60556 for Crew Cab with Standard Bed (6' 7") 157.2" wheelbase vehicles
• Add adapter 60564 for Extended Cab with Long Bed (8' 2") 164.1" wheelbase vehicles

Important Notice relating to US Domestic Market Trucks & Pickups

Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.

Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.

Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Exhaust System, S-Type, Cat-Back, Stainless Steel, Natural, Split Rear Exit, Black Chrome Tips, Ford, 3.3L, Kit

Borla S-type cat-back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower and produce a more aggressive sound and higher flow. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.

Each system is built from premium 300-Series austenitic stainless steel, superior to T-400 Series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. It's just what you'd expect from the world's most experienced (and most winning) exhaust brand.