C8 Corvette Performance Series Catback Exhaust
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Description
Product Highlights
- Dyno Gains OF +10 LB-FT TQ AND +22 HP To The Wheels
- Design Symmetry Ensures Both Banks Of The LT2 Breathe Equally
- Designed To Be 100% Bolt-On. No Cutting, Welding, Or Fabricating Required
- 304 Stainless Steel Is The Material Of Choice And Used Throughout The System.
- Machined Brushed Finish Components And Tubing
- Tig Welded Using Back Purging Techniques VS Competitors Inferior MiG Welding
- Tubing IS 304SS / 0.065” Thickness, 3" Diameter Main Tubing AND 2.25" For Inner Tips
- CNC Mandrel Bent For Constant Diameters
- Main Exhaust Utilizes Heavy Duty 304 Stainless Steel Clamps
- Exhaust Tips Utilize a Heavy Duty 304 Stainless Steel T-Bolt Style
- We Offer 3 Tip Styles, All Are 4.5” In Outer Diameter To Fill Out The Rear Fascia For An Aggressive Yet Tasteful Aesthetic.
- Polished Stainless, Slanted Dual Wall With Embossed Logos
- Black Chrome, Slanted Dual Wall With Laser Etched Logos
- Carbon Fiber, Slanted Single Wall With Printed Logos
Application: 2020 - 2025+ C8 Corvette Stingray / E-Ray /6.2L V8 engine with NPP exhaust
Does NOT Fit: 2023+ C8 Corvette Z06, 2025 C8 Corvette ZR1, non-NPP exhaust vehicles
Our design objective was clear: NO COMPROMISES! Every aspect of the exhaust has been carefully imagined, engineered, and manufactured to reality. Our team set out to build a cat-back exhaust that would set the standard in the C8 market. 304 Stainless components are expertly TIG welded throughout, ensuring you are purchasing a product of the highest quality. A brushed machine finish is an extra touch, letting you know your product has been made with American Pride. A Cast X-Pipe creates an ultra-smooth transition while maximizing scavenging effects to produce power. Our mufflers feature a 3" straight-through resonated design to eliminate restrictions while producing a loud, deep, sophisticated exhaust note. With sound valves closed, the flow path is routed through three separate chambers, eliminating drone and resulting in the perfect sound at all throttle positions. Available in three tip options, allowing you to personalize your supercar's look.
EXHAUST SYSTEM OVERVIEW / FEATURES
DESIGN
- Symmetry: Your LT2 is symmetrical; we painstakingly measured the engine bay to create a fully symmetrical design for the left and right banks.
- Designed to be 100% bolt-on. No cutting, welding, or fabricating required.
MATERIAL, FINISH, CONSTRUCTION
- 304 Stainless Steel used throughout: flanges, flex joints, valve bodies, mufflers, hangers, clamps, and tips.
- Machined brushed finish components and tubing.
- TIG welded using back purging techniques versus competitors’ inferior MIG welding.
FLANGES
- CNC milled from billet stainless for a precision fit to the exhaust manifolds.
- Superior to competitors’ waterjet or plasma-cut flanges, which are typically rough, warped, and poor-fitting.
TUBING
- Made by RATH GIBSON, the leading USA manufacturer of precision welded tubing.
- All tubing is 304SS with 0.065" wall thickness, 3" diameter for main tubing, and 2.25" for inner tips.
- CNC mandrel bent for constant diameters and quality-checked with state-of-the-art Hexagon Metrology Romer Arms.
FLEX JOINTS
- 100% 304 Stainless Steel, including the end caps and collars.
- Features a smooth interlock interior for maximum flow versus competitors’ corrugated interiors.
X-PIPE CROSSOVER
- Stainless Steel Cast X-Pipe for an ultra-smooth transition.
- Maximizes scavenging effects to produce the most power.
MUFFLERS
- Heavy wall stainless bodies with a 3" straight-through design for maximum horsepower.
- Internal triple-chambered sound absorption eliminates drone with valves closed.
VALVES
- Rattle-free, patent-pending design.
- Custom actuator holders made from billet aluminum act as heat sinks to prolong the actuator motor's life.
WEIGHT
- The stock C8 Z51 valved cat-back weighs 77lbs.
- The AutoSpeed Cat-Back weighs 59lbs for base system then +6.5lbs for Carbon Tips/Clamps, +8.5lbs Polished, Black Tip Versions
- Weight Savings of -11.5lbs Carbon Configuration, -9.5lbs Polished/Black Configuration
TIPS
We offer three tip styles, all with a 4.5” outer diameter for an aggressive yet tasteful aesthetic:
- Polished Stainless: Slanted dual wall with embossed logos.
- Black Chrome: Slanted dual wall with laser-etched logos.
- Carbon Fiber Shroud: Single-wall stainless with color logos.
It was important to incorporate the features that make the C8 exhaust experience so special; Active Fuel Management (AFM) and Dual Mode Exhaust Sound (NPP) actuators. We wanted to have the highest quality valves in our system, it became clear they could not be purchased online and did what we were bred to do, design our own. We purposely reinvented the wheel, err exhaust valve.
Most exhaust systems on the market use cheaply cast valve solutions or worse none at all. These valves typically experience rattling and actuation failures due to poorly selected materials and lack precision. The internal butterfly plates are typically screwed into the main shafts and are not optimized for flow. Along with cheap sheet metal stampings for the actuator holders; this is the easiest and crudest way to accomplish a valve design.
Our valves start life as a solid billet rods that are 20 feet long. One by one they are cut into blanks, multiple precision CNC machining operations later they transform into works of art. The Main Housing is manufactured from a solid 304 Stainless billet body. The Butterfly is a Solid 304 Stainless Billet Blank machined to an Airfoil Shape while eliminating any fasteners or screws in the flow path.
We manufacturer custom actuator holders from billet aluminum. Acting as heat sinks, the heat dissipates away from the actuator motors prolonging the life of the component.
All components are manufactured in house and on-site using our CNC machines. Each component goes through rigorous Quality Control checks to ensure the final product functions as intended.
Utilizing our Patent Pending design, the valve will not experience any rattle or experience any increased force to actuate it over time.
We could have easily created a multi piece hand fabricated crossover pipe made from various left over U-Bends, but we felt the C8 deserved better.
Using CAD with computational flow models, we engineered the crossover to offer the highest flowing cross-section while offering superior exhaust scavenging effects with an extremely smooth interior.
In comparison to the pie cuts welded units that our competitors offer, we doubt you could convince the competition to show you the inside of their crossovers. What would be seen is poor fit, rough edging, mig welds with poor transitional shape in terms of exhaust flow.
Fully TIG Welded; Ready to make Power
Cross-Section analysis example showing top to bottom flow paths with ultra smooth radii
Cross-Section analysis example showing the side to side flow paths with ultra smooth radii
Our Flex, The Outer Mesh Braid, Bellow, Interlocking internal liners (Maximize Flow), End Caps and collars are custom-made to our specifications from 100% 304 Stainless Steel. We do not utilize Aluminized steel in our flex joints. Our bellows will never rust offering you a long service life.
Clamps, Vital to ensuring a leak-proof seal and long service life are high quality clamps. We utilize heavy duty all 304 Stainless Steel T-Bolt and Accuseal clamps to meet our specifications.
Flanges, we design all flanges to be strong and fit the factory mating systems perfectly. Precision machined on our in-house Mills and Lathes from billet stainless materials. No rough plasma or waterjet components here.
TIG NOT MIG – Valuing true craftsmanship over speed and profits, we would argue the “T” stands for talent, as only skilled welders can stack the dimes and create a truly inspiring bespoke piece of art. We tend to think the “M” stands for minion as anyone can squeeze a trigger and let the sparks fly and spatter where they may.
All joking aside, the TIG method creates a lighter and superior weld in terms of control and penetration when it comes to welding components together. Plus it just looks insanely cool
Shipping Information
Orders are processed same or next business day. Shipping times vary depending on the product, shipping service, and whether freight shipping is required. While we ensure all inventory levels are current and accurate, they can change due to logistics and inventory feeds. Standard shipping typically takes 3-7 business days, but some items may require additional time depending on their origin. Feel free to call us anytime for the latest status of your order.
