CORSA Xtreme 3" Cat-Back Single Side Exit Exhaust with Polished 4" Tips (21145) - 2021-2026 Ford F-150 5.0L V8 141.5-Inch Wheelbase
Give your 5.0L-powered F-150 a louder, more aggressive exhaust note with the CORSA Xtreme 3.0-Inch Cat-Back Single Side Exit Exhaust System. Designed specifically for 2021-2026 Ford F-150 5.0L V8 Regular Cab trucks with the 8-foot bed and 141.5-inch wheelbase, this system combines CORSA's loudest Xtreme sound level with a clean single-side exit layout and twin polished 4.0-inch Pro-Series tips.
The Xtreme configuration is noticeably more aggressive than CORSA's Sport system during both cold starts and acceleration while adding only slightly more in-cabin volume. For this application, the Xtreme system delivers approximately 20 dB more sound than stock and saves approximately 25 pounds compared to the factory exhaust, making it a strong choice for owners who want a more commanding exhaust note without giving up everyday drivability.
Features
- CORSA Xtreme Cat-Back exhaust system
- Designed for 2021-2026 Ford F-150 5.0L V8 applications
- Specific fitment for Regular Cab trucks with 8-foot bed and 141.5-inch wheelbase
- 3.0-inch exhaust tubing
- Single side exit configuration
- Xtreme sound level
- CORSA's loudest exhaust sound option
- Approximately 20 dB louder than stock
- Approximately 25 pounds of weight savings compared to stock
- Noticeably more aggressive than the Sport system during cold starts and acceleration
- Only slightly more in-cabin volume than the Sport system
- Twin 4.0-inch exhaust tips
- Pro-Series tip design
- Dual-wall stainless steel tip construction
- Slash-cut tip design
- Polished tip finish
- Proudly made in the USA
- Backed by CORSA's Limited Lifetime Warranty
Xtreme Sound Level
CORSA's Xtreme configuration is designed for F-150 owners who want the most aggressive sound available for this application. It produces a noticeably stronger exhaust note than the Sport system on both cold start and under acceleration, giving the 5.0L V8 a more commanding character while introducing only slightly more in-cabin volume.
Single Side Exit Design
The 21145 uses a single side exit configuration for a clean, performance-oriented appearance. The 3.0-inch Cat-Back system routes the exhaust to one side of the truck and finishes with twin 4.0-inch Pro-Series tips, creating a compact and aggressive setup that complements the Xtreme sound profile.
Polished 4.0-Inch Pro-Series Tips
Twin polished 4.0-inch Pro-Series exhaust tips provide a bold finishing touch to the single-side exit system. Each tip features dual-wall stainless steel construction with a slash-cut design, combining durable construction with a clean polished appearance.
Weight Savings
The Xtreme 21145 system saves approximately 25 pounds compared to the factory exhaust. This reduction in exhaust system weight adds another performance-focused benefit to the louder sound and more aggressive side-exit styling.
CORSA Performance
CORSA Performance exhaust systems are backed by more than 20 years of development around the company's Science of Sound©. The 21145 Xtreme Cat-Back combines that experience with application-specific fitment, aggressive sound, and a distinctive single-side exit design. CORSA Performance exhaust systems are proudly made in the USA and backed by a Limited Lifetime Warranty.
Specifications
- Part Number: 21145
- Exhaust Type: Cat-Back
- Sound Level: Xtreme
- Sound Increase: Approximately 20 dB over stock
- Pipe Diameter: 3.0 inches
- Exit Style: Single Side
- Tip Style: Twin
- Tip Quantity: 2
- Tip Size: 4.0 inches
- Tip Type: Pro-Series
- Tip Construction: Dual-Wall Stainless Steel
- Tip Design: Slash Cut
- Tip Finish: Polished
- Weight Savings: Approximately 25 pounds compared to stock
- Made in the USA
- Warranty: Limited Lifetime Warranty
Fitment
- 2021 Ford F-150 5.0L V8 Regular Cab, 8-foot bed, 141.5-inch wheelbase
- 2022 Ford F-150 5.0L V8 Regular Cab, 8-foot bed, 141.5-inch wheelbase
- 2023 Ford F-150 5.0L V8 Regular Cab, 8-foot bed, 141.5-inch wheelbase
- 2024 Ford F-150 5.0L V8 Regular Cab, 8-foot bed, 141.5-inch wheelbase
- 2025 Ford F-150 5.0L V8 Regular Cab, 8-foot bed, 141.5-inch wheelbase
- 2026 Ford F-150 5.0L V8 Regular Cab, 8-foot bed, 141.5-inch wheelbase
Important Fitment Note
This system is designed specifically for Ford F-150 5.0L V8 Regular Cab models equipped with the 8-foot bed and 141.5-inch wheelbase. Verify engine, cab configuration, bed length, and wheelbase before ordering.
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