Fabspeed 2025+ Chevrolet Corvette C8 ZR1 Stainless Steel Megaphone Cat-Back Exhaust System

+44 HP | +68 LB-FT TQ | -39 LBS
Transform the C8 ZR1’s twin-turbo LT7 with Fabspeed’s Stainless Steel Megaphone Cat-Back Exhaust System. Designed as a lightweight, free-flowing exhaust for the 2025+ ZR1, the system replaces the restrictive factory rear section with a stepped megaphone design engineered to reduce backpressure, increase performance, and dramatically amplify the character of the 5.5L twin-turbo V8.
Key Features

+44 HP
+68 LB-FT TQ
39 lb / 17.69 kg weight savings
Free-flow 3-inch / 76mm exhaust architecture
Expands to a massive 5-inch / 127mm megaphone section

Reduces to 3.5-inch / 90mm at the tip outlet
Stepped megaphone design helps reduce exhaust backpressure
CNC mandrel-bent construction

T304 stainless steel tubing
T321 stainless steel flexible bellows
Ceramic-fiber thermal insulation rated to 2000°F / 1094°C

Thermal insulation wrapped in 625 stainless steel

Retains the factory ZR1 quad “floating” exhaust tips
Optional Fabspeed quad carbon-fiber or titanium tips available
Includes electronic exhaust-valve simulators

Simple bolt-on installation
No cutting or welding required
Made in the USA by Fabspeed

Fabspeed Lifetime Warranty

Proven Performance
Fabspeed rates the ZR1 Megaphone Cat-Back for gains of:
+44 HP+68 LB-FT TQ
The system also removes approximately 39 pounds compared with the factory muffler assembly, delivering both increased output and a substantial reduction in rear-end weight.
Stepped Megaphone Exhaust Design
Rather than using a conventional straight-diameter exhaust path, Fabspeed incorporates a unique stepped megaphone configuration.
The system begins with 3-inch / 76mm tubing, expands into a huge 5-inch / 127mm section, and then transitions down to 3.5 inches / 90mm at the exhaust outlet. Fabspeed states that this megaphone architecture helps extract exhaust gases and reduce backpressure.
Aggressive Twin-Turbo LT7 Sound
The factory ZR1 exhaust is comparatively restrained for a 1,000+ horsepower platform. Fabspeed designed this system to bring considerably more of the LT7’s character to the surface.
The Megaphone Exhaust produces a stronger, more authoritative rumble at idle and transitions into a much higher-pitched, race-inspired wail as engine speed increases.
Fabspeed reports a sound level of approximately 122.8 dB, increasing to 127.7 dB when paired with its Sport Cats.
Lightweight Stainless Steel Construction
The system is constructed from mandrel-bent T304 stainless steel and incorporates T321 stainless steel flexible bellows. This combination provides a durable, high-temperature exhaust assembly while eliminating a significant amount of weight from the factory rear exhaust system.
Advanced Thermal Management
To control the substantial exhaust temperatures produced by the twin-turbo LT7, Fabspeed insulates the system with ceramic fiber rated to 2000°F / 1094°C, surrounded by 625 stainless-steel shielding.
Factory or Optional Exhaust Tips
The system can retain the ZR1’s factory quad “floating” exhaust tips, preserving the OEM rear appearance.
For a more customized look, Fabspeed also offers optional:

Quad carbon-fiber exhaust tips
Quad titanium exhaust tips
Carbon-fiber tip surround

 
Electronic Valve Simulators
Because the Megaphone system eliminates the factory valve-controlled rear muffler arrangement, Fabspeed includes electronic valve simulators designed to prevent a related Check Engine Light.
Bolt-On Installation
The system is designed as a direct bolt-on cat-back upgrade with no cutting or welding required.
Professional installation recommended.
Warranty
Backed by the Fabspeed Lifetime Warranty.
Vehicle Fitment
2025+ Chevrolet Corvette C8 ZR1

Coupe
HTC / Convertible
5.5L Twin-Turbo LT7 V8

Fabspeed specifically lists the exhaust for 2025+ C8 ZR1 Coupe and Convertible models. ROW compatibility is described by the manufacturer as likely but should be confirmed before ordering.