MRT Engineering 14-19 Corvette C7 MRT QuadFlow Cat-Back - 91S121
The MRT Corvette C7 QuadFlow Cat-Back system has a loud, deep muscle car sound and is handcrafted entirely in corrosion resistant T304 Stainless Steel. Base systems include T304 polished SS 4" tips and 3" mandrel bent tube. A Black Ops tip finish is available for an additional fee (Black Ops is a high temperature ceramic coating in black matte finish). This system is engineered for the best sound to provide your Corvette with the perfect balance of performance sound in spirited driving - comfortable in highway driving and managed sound at low speed and idle. This exhaust variant has straight through design with the loudest exhaust note, versus the stock exhaust. This Cat-Back exhaust will give you improved performance and sound with minimal drone as well.
For Corvette customers with factory installed AFM / NPP devices, MRT offers and recommends a simple solution that allows you to upgrade your exhaust system without having to develop a tune to defeat the AFM. For more information on these plates, refer to
MRT Part #91X010 or simply add to your shopping cart before checkout.
Application: 2014 thru 2019 Corvette C7 6.2L V8 engine
Doesn't Fit: Other Corvette models.
Hear the Difference
- How does it sound? The MRT C7 QuadFlow Cat-Back #91S121 has a spirited, balanced, street performance sound.
- Is there drone or resonance? The drone is noticeable but tolerable.
- What if I step on it? Wide-open throttle increases exhaust loudness and tone to an aggressive performance sound.
Are you located close to Plymouth, MI and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!
Product Quality
- What kind of steel is it made from? Corrosion-resistant T304 stainless steel.
- Where is it made? Developed and handcrafted in-house at MRT facility in Plymouth, Michigan, USA.
- How long is the Warranty? Limited Lifetime Warranty (See Warranty Page for Details)
Feel the Performance
- What is the muffler design? Straight through design to provide maximum exhaust gas flow.
- What is the tube diameter? A large 3" tube is used for reduced exhaust flow restrictions.
- What are the performance gains? Reducing restriction and maximizing flow provides for noticeable gains.
Get Noticed
- What kind of tip is it? Quad 4" double wall T304 stainless steel tips with beveled edges.
- What are my tip finish options? Stylish Polished Stainless Steel or Black Ops Matte Ceramic.
- How do I get noticed? Great sound and great looks turn heads and get positive comments!
Lethal Performance is proud to offer the entire line of products!
