C8 Corvette Stingray MRT Sport Touring Cat-Back Exhaust

 

The MRT Sport Touring Cat-Back Exhaust (Part No. 91S220) is engineered for the 2020–2026 Chevrolet Corvette Stingray (C8) 6.2L LT2 V8. 

It is designed for drivers seeking a deeper, more aggressive exhaust note without excessive cabin drone, making it well-suited for both spirited driving and long-distance touring.  

**Key Features

• Vehicle Compatibility: 2020–2026 Chevrolet C8 Corvette Stingray (1LT, 2LT, 3LT, including Z51 package)
• Material: T304 stainless steel construction
• Pipe Diameter: 3-inch mandrel-bent tubing
• Exhaust Design: H-pipe crossover for improved exhaust pulse balance
• Tips: Quad 4-inch double-wall polished stainless steel tips (optional Black Ops matte black finish)
• Valve Support: Includes a plug-and-play valve simulator module to prevent a check engine light after removing the factory valve system
• Warranty: Limited lifetime warranty
• Made in: USA  

Performance Benefits

• Deeper, richer American V8 exhaust tone.
• Approximately 10–15% louder than the factory performance exhaust while remaining refined.
• Improved exhaust flow for enhanced throttle response and modest horsepower gains.
• Very low cabin drone, making it comfortable for everyday driving.
• Direct bolt-on installation with no cutting or welding required.  

MRT Performance Ratings

According to MRT:

• Loudness: 8/10
• Performance: 9/10
• Drone: 1/10 (very minimal)  

Sound Character

Unlike many C8 exhausts that use an X-pipe, MRT employs an H-pipe configuration. This gives the LT2 V8:

• A deeper, classic American muscle-car rumble at idle.
• A fuller, more aggressive growl during acceleration.
• A refined, comfortable cruising sound with almost no drone.  

Installation

• Estimated installation time: 5–6 hours
• Professional installation is recommended due to the need to remove the rear bumper assembly.  

Best For

This exhaust is ideal if you want:

• A noticeable but refined sound upgrade.
• Comfortable daily driving with minimal drone.
• Improved exhaust flow without sacrificing drivability.

If your goal is maximum volume and an aggressive track-oriented sound, MRT recommends its Street Race Cat-Back (91S225) instead. 

For most street-driven C8 Stingrays, however, the Sport Touring 91S220 strikes an excellent balance between performance, comfort, and an unmistakable V8 soundtrack.  

C8 Corvette Stingray MRT Sport Touring Cat-Back Exhaust