-17%
Sold out
Click to zoom in
Engineered Sound for the Tremor EcoBoost Faithful
The CORSA 21185 brings a purpose built cat-back exhaust to the 2021-2024 Ford F-150 Tremor 3.5L EcoBoost, replacing the factory system with a straight through design that unlocks a deeper tone without adding cabin drone. Built from 304 stainless steel and finished with polished tips, MPN 21185 pairs a resonated head pipe with CORSA's Reflective Sound Cancellation Technology for a refined driving experience.
Key Features
- 3.0 inch dual rear exit cat-back exhaust with resonated head pipe
- 304 stainless steel construction for long term corrosion resistance
- 4.0 inch single polished Pro-Series tips
- Reflective Sound Cancellation Technology eliminates drone at cruise
- Delivers 16 percent more airflow than the factory exhaust
- Sheds 7 pounds versus the stock system
- Sport sound level tuned specifically for the 3.5L EcoBoost engine
- Bolt on installation using factory hangers, no welding required
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2021-2024 | Ford | F-150 | Tremor EcoBoost SuperCrew 5.5ft Bed |
| 2024-2025 | Ford | F-150 | Lariat EcoBoost Black Appearance Package SuperCrew 5.5ft Bed |
Specifications
| Detail | Value |
|---|---|
| MPN | 21185 |
| Pipe Diameter | 3.0 inch |
| Tip Size | 4.0 inch single |
| Tip Finish | Polished dual wall straight cut |
| Sound Level | Sport |
| Material | 304 Stainless Steel |
| Flow Increase | 16 percent |
| Weight Savings | 7 lbs |
| Sound Increase | +7.9 dB over stock |
What's Included
- CORSA 21185 cat-back exhaust assembly
- Polished 4.0 inch dual wall Pro-Series tips
- All mounting hardware and clamps
- Printed installation instructions
About CORSA Performance
CORSA Performance designs and manufactures American made exhaust systems in Berea, Ohio. Every CORSA system uses patented Reflective Sound Cancellation Technology to remove unwanted drone frequencies while preserving an aggressive tone under acceleration, backed by a limited lifetime warranty.
Related Parts on Our Site
- Corsa 2021-2023 Ford F-150 SuperCrew 3.5L V6 Sport Cat-Back Dual Rear Exit Black PVD
- Corsa 2021-2023 Ford F-150 SuperCrew 5.0L V8 Xtreme Cat-Back Dual Rear Exit Black PVD
Frequently Asked Questions
What is the 21185?The 21185 is a CORSA Sport level 3.0 inch cat-back exhaust system built for the 2021-2024 Ford F-150 Tremor 3.5L EcoBoost, featuring polished 4.0 inch tips and a dual rear exit design.
Will the 21185 fit a V8 powered F-150 Tremor?No, MPN 21185 is engineered specifically for the 3.5L EcoBoost Tremor. V8 Tremor owners should look at CORSA's 21183 or 21184 series systems.
Does the 21185 require any cutting or welding?No, the 21185 bolts directly to the factory hangers with no cutting, drilling, or welding required.
What sound level does the 21185 offer?The 21185 is available in CORSA's Sport sound level, tuned for a moderate, drone free driving experience with a noticeable increase in tone under acceleration.
How much airflow improvement does the 21185 provide?CORSA rates the 21185 at a 16 percent increase in exhaust flow compared to the factory system.
Is the 21185 legal in all 50 states?Yes, cat-back systems like the 21185 do not alter emissions equipment and are legal for sale and use in all 50 states.
What tips come with the 21185?The 21185 includes 4.0 inch single polished dual wall Pro-Series tips with a straight cut design.
Does the 21185 come with a warranty?Yes, CORSA backs the 21185 with a limited lifetime warranty against manufacturing defects.
Installation Instructions
- Raise and safely support the vehicle on jack stands or a lift.
- Remove the factory exhaust system starting at the mid pipe connection.
- Disconnect factory hangers from the rubber isolators and remove the stock muffler assembly.
- Test fit the CORSA 21185 cat-back assembly using the factory hangers.
- Install provided clamps at each pipe connection without fully tightening.
- Adjust tip alignment in the rear valance opening for even clearance.
- Tighten all clamps to the specified torque once alignment is confirmed.
- Start the vehicle and inspect for leaks or contact points before road testing.
WARNING: This product can expose you to chemicals including nickel compounds, which are known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Catback
A catback exhaust system replaces everything from the catalytic converter back, covering the mid pipe, muffler, and tailpipe section in one bolt on upgrade. This collection covers catback systems for trucks, Jeeps, muscle cars, imports, and performance SUVs, giving you a straightforward way to improve sound, exhaust flow, and rear end styling without touching the factory catalytic converters or front pipe. Catback systems are available in stainless steel and titanium construction, with dual rear exit, single exit, and quad tip configurations, and a range of sound levels from mild touring tone to aggressive track character. Whether you want a deeper daily driver sound or a full track ready exhaust note, you will find a matched system for your platform here. What This Category Covers This collection includes complete catback exhaust systems, cat-back kits, dual rear exit systems, axle back adjacent catback upgrades, stainless steel and titanium exhaust systems, and street, tourin...
View Catback Products
CORSA Performance
CORSA Performance exhaust systems and cold air intakes for American muscle cars and trucks are stocked at Black Ops Auto Works. Shop CORSA Xtreme, Sport, and Touring cat-back exhausts, axle-back exhausts, active-valve systems, carbon fiber cold air intakes, mufflers, resonators, X-pipes, H-pipes, exhaust tips, and oil catch cans for Camaro, Corvette, Mustang, Silverado, F-150, Charger, Challenger, Durango, and Grand Cherokee Trackhawk. Every CORSA part is filterable by year, make, model, trim, engine, and drivetrain so the correct exhaust configuration ships the first time. Black Ops Auto Works carries 504 CORSA Performance SKUs across exhaust, intake, and accessory categories. What This Brand Covers CORSA Performance builds vehicle-specific exhaust systems and cold air intakes engineered for aggressive sound, controlled cabin noise, premium stainless construction, and precise fitment. The brand is best known for cat-back and axle-back systems on Camaro, Corvette, Mustang, and M...
View CORSA Performance Products
Exhaust Systems
Performance exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop cat-back systems, axle-back systems, turbo-back systems, headers, downpipes, mid-pipes, mufflers, resonators, catalytic converters, exhaust tips, exhaust valve controllers, oxygen sensors, exhaust brakes, and motorcycle and powersports exhausts for Mustang, Camaro, Challenger, Corvette, Silverado, and Super Duty platforms. Every product is filterable by exhaust position, material, pipe diameter, and vehicle year, make, model, and trim so the correct fitment ships the first time. Black Ops Auto Works carries 7,441 exhaust SKUs across every position of the exhaust system. What This Category Covers Exhaust upgrades change sound, appearance, and in some cases power. Exhaust fitment depends on engine, drivetrain, and factory exit position, so confirm the exact platform before ordering any exhaust component. Exhaust Position Cat-back, axle-back, turbo-back, and header-back systems e...
View Exhaust Systems Products