SPDZ1 Performance Catless Downpipe with Heavy-Duty Heat Shield

Fits Genesis G70 2.0T (2019-2023) & Kia Stinger 2.0T (2018-2021)

Transform the performance of your turbocharged Genesis G70 or Kia Stinger with the SPDZ1 Performance Catless Downpipe. Designed to replace the restrictive factory catalytic converter, this high-flow downpipe dramatically improves exhaust flow, allowing the turbocharger to spool faster while reducing exhaust backpressure.

Unlike many aftermarket alternatives, the SPDZ1 downpipe features an exclusive heavy-duty thermal heat shield that helps reduce radiant engine bay temperatures, protecting nearby components while maintaining cooler operating conditions during spirited driving.

Constructed from premium stainless steel with precision TIG welds and CNC-machined flanges, this downpipe is engineered for enthusiasts looking for reliable performance and long-term durability.

Whether your vehicle is stock, tuned, or running upgraded turbo components, the SPDZ1 downpipe is one of the best bolt-on upgrades for unlocking additional power.

Features

✔ Exclusive Heavy-Duty Heat Shield

✔ Premium 304 Stainless Steel Construction

✔ Precision TIG-Welded Assembly

✔ Mandrel-Bent Tubing

✔ CNC Machined Flanges

✔ Direct Bolt-On Installation

✔ High-Flow Catless Design

✔ Improved Turbo Spool

✔ Increased Exhaust Flow

✔ Reduced Turbo Backpressure

✔ Improved Throttle Response

✔ More Aggressive Exhaust Note

✔ Built for High-Performance Applications

✔ Includes Installation Hardware

✔ Includes Required Gaskets

✔ O2 Sensor Bung

Performance Benefits

Replacing the restrictive factory catalytic converter allows the turbocharger to operate more efficiently by reducing exhaust restriction immediately after the turbine.

Benefits include:

• Faster Turbo Spool
• Improved Throttle Response
• Increased Horsepower Potential
• Increased Torque
• Better Mid-Range Acceleration
• Improved High RPM Performance
• More Aggressive Turbo Sound
• Reduced Exhaust Backpressure

Performance gains will vary depending on ECU tuning and supporting modifications.

Exclusive Heavy-Duty Heat Shield

The SPDZ1 integrated thermal heat shield helps:

• Reduce radiant engine bay temperatures
• Protect nearby hoses and wiring
• Improve thermal efficiency around the turbocharger
• Increase long-term durability of surrounding components
• Maintain a cleaner OEM-style appearance

Vehicle Fitment

Genesis

• 2018 Genesis G70 2.0T
• 2019 Genesis G70 2.0T
• 2020 Genesis G70 2.0T
• 2021 Genesis G70 2.0T
• 2022 Genesis G70 2.0T
• 2023 Genesis G70 2.0T

Kia

• 2018 Kia Stinger 2.0T
• 2019 Kia Stinger 2.0T
• 2020 Kia Stinger 2.0T
• 2021 Kia Stinger 2.0T
• 2022 Kia Stinger 2.0T
• 2023 Kia Stinger 2.0T

Package Includes

• SPDZ1 Performance Catless Downpipe
• Heavy-Duty Heat Shield
• Installation Hardware
• Premium Exhaust Gaskets
• O2 Sensor Provision

Installation

• Direct Bolt-On Design
• Factory Mounting Locations
• Professional Installation Recommended
• No Permanent Vehicle Modifications Required

Tuning Information

This downpipe can be installed on a stock vehicle; however, an ECU tune is recommended to maximize performance and reduce the likelihood of catalyst efficiency (Check Engine Light) codes.

Off-Road Use Only

This product is intended for closed-course competition and off-road use only.

Please verify your local emissions regulations before purchasing.

Why Choose SPDZ1?

For more than 27 years, Speedzone has supplied performance enthusiasts with high-quality aftermarket parts. SPDZ1 products are engineered to provide premium performance, exceptional fitment, and outstanding value.

Every SPDZ1 product is designed with enthusiasts in mind, delivering reliable performance that you can feel every time you hit the throttle.

NEW PRODUCT - PRE-ORDER AVAILABLE LATE OCTOBER 2026