Category: C8 Corvette Exhaust

YouTuber StreetSpeed717 was one of the first C8 Corvette owners with a custom built Cat Back Exhaust with Sport Cats from a local shop in his area Soul Performance.

It is one of the best sounding, looking, and lighter Exhaust options vs. the stock exhaust and cats.

Per Soul Performance website check out more information on their Cat Back Exhaust system and their Sport Cats for the C8 Corvette and watch some of the videos below to hear it rip.

Chevrolet C8 Corvette Performance Rear Exhaust System

$3,495.00 – $3,695.00

DEVELOPMENT:  The factory valved exhaust is rather free flowing with valves open, and we wanted to craft an aggressive non-valved solution while mitigating drone through a longer exhaust tract. Our split bank 3″ crossover design offers maximum flow and V8 rumble while shedding approximately 20 lbs. We’ve incorporated mounting brackets for the factory exhaust valves (designed to limit flow in four-cylinder mode) to prevent them from being damaged or throwing a check engine light due to removal.

Due to the close proximity of the exhaust to sensitive components and plastic, heat shields are a MUST. We’ve heard rumors of GM discussing potential issues related to heat from modifying the exhausts with dealers and have taken every precaution to implement heat shielding into every solution.  We’ve partnered with PTP Turbo Blankets to produce a bespoke, form-fitting heat shielding solution. Far superior to no-name brand copies, PTP Lava Turbo Blankets are constructed with an outer layer made from pulverized volcanic lava rock (Rated 1800°F Direct Heat / 2500°F Radiant Heat) formed into fabric and woven into a tight mesh weave. These blankets are internally insulated with high temperature calcium magnesium silicate wool (Rated 1832°F Continuous / 2300°F Peak) overlaid with a high temperature stainless steel mesh for increased durability and improved thermal resistance. The Lava Blankets are designed to withstand the harshest of conditions.

CONSTRUCTION:  Each component is made in-house by our fabrication team from mandrel bent .060″ wall T304L stainless steel tubing, laser cut brackets, and waterjet cut flanges. Welds are back purged for proper penetration and maximum durability. Our 4″ double wall stainless steel tips are available in a number of finishes and have depth adjustment for perfect fitment to meet your desired aesthetic.

BOLT ON AND GO:  Each exhaust component is built and tested in a thick gauge aluminum fixture (which prevents warping) to ensure perfect fitment. Every piece is rigorously quality-checked prior to shipping and then foam packed to ensure they arrive in perfect condition.

ABOUT PTP TURBO BLANKETS:  Every PTP Turbo Blanket is hand-crafted in North America and quality is guaranteed. PTP Turbo Blankets are well known in the industry for their high standards for material selection, design, construction, and also for their ability to provide these high quality products at an affordable price. It is important to note that, as unfortunate as it is, there are many imitation turbo blankets out there – often made in China. These imitation turbo blankets are manufactured using much inferior materials for construction. Imitation turbo blankets can be ineffective or worse, they can be dangerous if flammable materials are used. PTP Turbo Blankets and wraps are the result of years of product research and development. The exact same materials that are used in their turbo blankets and wraps are currently being used in multiple military applications. Their materials are on the cutting edge of heat insulation technology – for more information see this full research paper here.

LIFETIME WARRANTY:  Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered for life! Our team will quickly work with you to resolve any issues or answer any questions that you may have. We cover our HJS catalytic converters with an unprecedented 3 year warranty while the components themselves are backed by our Lifetime Warranty.

Chevrolet C8 Corvette Sport Catalytic Converters

$2,895.00

Description

CONSTRUCTION:  Each set is assembled in house in the USA out of mandrel bent, thick wall .065″” T304L stainless steel. Back purged TIG welding ensures proper weld penetration and longevity. We fabricate these cats using thick gauge aluminum fixtures which act as a great heat sink during the welding process and prevent warping not only of our products, but the fixtures themselves to ensure perfect fitment. Due to the close proximity of the catalytic converters to sensitive components, heat shields are a MUST with the C8! We’ve partnered with PTP Turbo Blankets to produce a bespoke, form-fitting heat shielding solution. Far superior to no-name brand copies, PTP Lava Turbo Blankets are constructed with an outer layer made from pulverized volcanic lava rock (Rated 1800°F Direct Heat / 2500°F Radiant Heat) formed into fabric and woven into a tight mesh weave. These blankets are internally insulated with high temperature calcium magnesium silicate wool (Rated 1832°F Continuous / 2300°F Peak) overlaid with a high temperature stainless steel mesh for increased durability and improved thermal resistance. The Lava Blankets are designed to withstand the harshest of conditions.

UPDATE! Soul Performance Full Cat Back Exhaust and Sports Cats for the C8 Corvette

Here is another Performance Shop Team Nur installing the new Soul Performance full C8 Exhaust.

With the Soul Performance Sport Cats for the C8 it improved the horsepower from 450 baseline to 471 with the stock exhaust still on. C8 picked up 20 wheel horsepower and 20+ more torque.

With the Soul Performance Sport Cats and the Soul Performance Cat back straight pipe it sounds insane and without tuning it gained about 5 more horsepower and torque as well. Overall it’s a win and sounds insane!

 

Another C8 Corvette with Soul Performance Sport High Flow Cats and a Soul Performance Cat Back Exhaust

SOUL Performance C8 Corvette Sports Cats and Valved Exhaust System

Check out this first ever Titanium Exhaust for the new Mid Engine Corvette C8 that was made in five days for Daily Driven Exotics LaCorvette for $10,000 by 316 Speed and Charlie Turbos in Florida.

Not only does it sound and look amazing it’s only 8lbs compared to the OEM exhaust that is 100lbs!

Here is a few clips showing the brand new LTH EXhaust 1 7/8″ headers into our ECOf cat pipes which are compliant with the EPA.

This is all matched with the factory catback system. Our headers are American made using 304 and mandrel bent.

These are available now fpr $1099 on their website at www.longtubeheaders.com 

Per Long Tube Headers website:

The OEM Corvette C8 Headers on the 2020 6.2L C8 V8 leave a lot to be desired. The stock unit is manufactured with the goal of suppressing the motors sound as much as possible. This sound deadening robs the motor of vital flow and horsepower. Take your horsepower back with the LTH Long Tube Headers!

The LTH Corvette C8 Headers are finished in our exclusive Titan™ finish that provides an all over matte finish and added durability. These headers can be used with the factory catalytic converter, our high flow cat, or our catless section.

Corvette C8 Headers Key Features

• Available in a range of sizes
• Titan™ finish for added durability
• Modular design allows for use with OEM components
• Developed for best balance of low end and top end power.
• Precision designed for perfect fitment.
• Manufactured in house in the USA
• Lifetime warranty, as always

 

The Corvette C8 V8 has an amazing sound, thanks to it’s 6.2L.  Also headers are one of the best mods on this platform, as it gives you more power. Combine this with the incredible sound and you have a winner. Accordingly modifying the catback section of the exhaust will give you more sound, but the headers are really where the power is at.

Certainly Headers free up a lot of power, especially when the car has a tune for the added airflow. Consequently the same is true for the Corvette C8 Headers. Truly any Corvette C8 V8 can benefit from a set of proper headers.

Free up your horsepower and let that V8 sing with Long Tube Headers

Check out this video from The Redliner with the new Corvette C8 Fabspeed Cat Bypass pipes with his stock exhaust.

The Redliner mentions to use REDLINER for 10% off on any Fabspeed Exhaust products for the New C8 Corvette

Plus Per Fabspeed Motorsport:

The 2020 Chevrolet Corvette C8 6.2L LT2 V8 is a true enthusiast car and it dramatically benefits from a Fabspeed Motorsport Cat Bypass Pipes. You’ll appreciate the more aggressive exhaust note and significant horsepower increase. Replaces the restrictive and heavy factory catalytic converters with non restrictive straight-through pipes for maximum flow, performance and sound

POWER: Dyno results coming soon! (from Fabspeed) However, this Satin Matte Black C8 with Vossen Wheels showed 20+ HP gains from the Fabspeed Cat Bypass vs. the stock OEM C8 Cats that are a lot heavier as well.

SOUND: If you’re looking for the most aggressive sound possible from your C8, these Cat Bypass Pipes will deliver. Check out our videos below to hear for yourself!

FINISH: Full brushed T304L stainless steel, beautifully TIG welded.

FEATURES:

• Simple direct replacement bolt-on replacement Straight pipes/ cat-bypass pipes for the restrictive OEM GM factory ceramic 700 cell catalytic converters.

• All required gaskets and hardware are included

• 100% Intended for all out RACING COMPETITION. NOT street or road legal on public motor ways.

• Straight pipes with 321 stainless steel insulated heat thermal protection integrated to stop radiant heat in the C8 engine bay.

• Includes heat shielding made from amorphous silica fiber wrapped with 321 Stainless Steel.

• Weight savings of 17lbs and 8kg over the stock catalytic converter

• Not CARB legal and not to be installed on street driven vehicles. Owners installers ASSUME all risk and assume any and all liabilities associated with these parts.

• Fabspeed HJS German sports race cats make more power even on tuned vehicle than cat bypass pipes. Unless you are running LEADED RACING gasoline or have an all out racing engine no-one required cat bypass pipes.

• Worried about heat? Check out the heat analysis we did on the Fabspeed Blog

• Waiver required to purchase C8 cat bypass pipes.

Fabspeed Heat Analysis

DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

As the new C8 Corvette hits the market (2,700 so far and production starting again in June 2020) owners will be looking for Corvette C8 Exhaust options.

Sometimes being first isn’t always the best long term. A lot of Exhaust companies and or Corvette Performance shops are rushing to get their C8 Cat back or Catless exhaust systems to market and this can cause issues with heat, check engine lights or other unforseen issues with the new C8 ECU which currently as of this post has an encrypted ECU you can’t tune yet.

However, Borla is taking their time and testing temperatures and trying to avoid any of these issues. Check out the things are heating up in Borla’s R&D Shop! David Borla reveals the unique challenges of building an exhaust system for a high output mid-engine car like the C8 Corvette.

hings are heating up in Borla’s R&D Shop! David Borla reveals the unique challenges of building an exhaust system for a high output mid-engine car like the C8 Corvette.

UPDATE: April 2021 on Borla’s C8 Corvette Exhaust

Hear the exhaust that made 4-time 24 Hours of Le Mans winner Johnny O’Connell wonder why the C8 even comes with a stereo. Borla is finally giving an update on why it took so long for their C8 Corvette and what type of sound they were trying to achieve with this cat back exhaust.

Dyno testing the Hennessey stainless steel exhaust upgrade system for the C8 Corvette. Gains 21 rear wheel HP and 19 rear wheel lb-ft torque and weighs 11 lbs less than factory exhaust system. This is the exact same Hennessey exhaust system, built in-house, that helped power their C8 Corvette they have been building and testing for their Twin Turbo kit.

Per Hennessey

The Hennessey C8 Corvette Exhaust system is a fully custom, in-house fabricated, turn-key exhaust setup made entirely out of T304 stainless steel. It provides a mild weight savings (10 lbs) and power gain (21 horsepower & 19 lb-ft torque) along with a massive sound upgrade. This is the most extensively tested aftermarket C8 exhaust in the world due to the extensive work HPE has put into it. From hours of road course testing as well as 205 MPH top-speed testing; this exhaust has been put to the limits and is ready for full-scale production.

The exhaust system will be shipping fully assembled and is a direct bolt-on to all 2020 – 2021 C8 Corvette Stingrays. Founder and CEO John Hennessey shared his vision for the exhaust, “The C8 Corvette is a phenomenal platform, we are doing what we do best; enhancing it and taking it to the next level. The Hennessey stainless steel exhaust adds power, lightness, and an overall improved visceral C8 Corvette driving experience.”

Hennessey Performance is set to offer a full range of C8 performance products and upgrades, including: light-weight wheel upgrades, CarbonAero carbon fiber components, full turn-key engine performance packages for increased power & performance, and more. Hennessey is only building 1000 units for the first year and each exhaust system comes with its own serial numbered certificate of authenticity. Further, Hennessey will offer a lifetime warranty for as long as the C8 owner has the system on their Corvette. Pricing is set at $3,495 plus shipping and the company is offering a special price of $2,995 for the first 100 orders placed.

The exhaust system can be ordered directly from Hennessey Performance by calling 979-885-1300 or by visiting here.

UPDATE:

HENNESSEY C8 CORVETTE EXHAUST UPGRADE | Customer Testimonial

 

Updated September 16th, 2020

C8 EXHAUST INSTALLATION! | Hennessey C8 Corvette Exhaust Upgrade [UPDATED]