HKS Super Turbo Muffler

2019–2022 Toyota GR Supra B48 Engine

31029-AT005

Overview:

The HKS Super Turbo Muffler is a precision-engineered exhaust upgrade designed specifically for the Toyota GR Supra models equipped with the B48 engine from 2019 through 2022. This high-performance muffler balances sporty sound enhancement with compliance to Japan’s strict vehicle inspection standards, making it an ideal choice for enthusiasts seeking improved exhaust tone without compromising daily drivability or legal requirements. It delivers a refined exhaust note that is engaging yet controlled, ensuring a satisfying driving experience across all RPM ranges.

Perfect for GR Supra owners who want to elevate their vehicle’s performance and sound character while retaining factory functionality, the HKS Super Turbo Muffler integrates seamlessly with the stock exhaust valve system. This allows drivers to switch effortlessly between Sports and Normal modes, preserving the convenience and versatility of the original setup.

Key Features:

Designed with both performance and compliance in mind, the HKS Super Turbo Muffler offers the following key features:

• Complies with Japanese vehicle inspection noise regulations for legal street use
• Straight-through muffler design minimizes back pressure for optimal engine performance
• Compatible with the factory exhaust valve motor, enabling retention of Sports and Normal mode switching
• Constructed from high-grade S304 stainless steel for durability and corrosion resistance
• Dual 110mm diameter exhaust tips provide an aggressive yet refined appearance
• 70mm diameter dual center pipes enhance exhaust flow efficiency
• Maintains a close noise level increase from stock 81dB to 91dB for a sporty but controlled sound
• Engineered to maintain adequate road clearance of 110mm, suitable for daily driving conditions
• Mid-pipe portion designed for compatibility with Hypermax Touring suspension setups

Construction & Design:

The HKS Super Turbo Muffler is crafted from premium S304 stainless steel, ensuring long-lasting resistance to heat and corrosion. Its straight-through internal structure eliminates restrictive chambers, reducing exhaust back pressure and promoting efficient gas flow. This design not only enhances engine responsiveness but also contributes to a clean, sporty exhaust tone that is both engaging and refined. The muffler’s dual 110mm tips and 70mm dual center pipes are precision-formed to optimize exhaust velocity and visual appeal.

Special attention was given to integrating the system with the factory exhaust valve motor, allowing the original valve to remain functional. This thoughtful engineering preserves the vehicle’s ability to switch between quieter and sportier exhaust modes, maintaining the versatility expected from a factory setup.

Performance & Sound

The HKS Super Turbo Muffler delivers a noticeable improvement in exhaust sound quality, producing a satisfying sporty tone that enhances the driving experience without becoming intrusive during normal operation. By minimizing back pressure through its straight-through design, the muffler supports improved engine breathing, which can contribute to better throttle response and overall performance. Despite the enhanced sound and flow, the system remains compliant with Japan’s stringent noise regulations, ensuring legal use on public roads.

Installation & Fitment:

This muffler is a direct fit replacement for the Toyota GR Supra models from 2019 to 2022 equipped with the B48 engine. Installation requires no modifications, and the system is designed to work with the factory exhaust valve motor, preserving the original valve’s functionality. The mid-pipe section is compatible with vehicles equipped with Hypermax Touring suspension, ensuring proper clearance and fitment. Professional installation is recommended to guarantee optimal performance and secure mounting.

What's Included:

• HKS Super Turbo Muffler assembly
• Dual 110mm stainless steel exhaust tips (left and right)
• Dual 70mm diameter center pipes
• Mounting hardware and gaskets as required for installation

Ideal For:

This exhaust system is ideal for Toyota GR Supra owners who desire an enhanced sporty exhaust note and improved performance without sacrificing the convenience of factory exhaust valve operation. It suits enthusiasts who want a legal, well-engineered upgrade that complements daily driving and spirited track use alike. The HKS Super Turbo Muffler is especially recommended for those running Hypermax Touring suspension setups, ensuring compatibility and optimal ground clearance.

HKS is a Japanese company specializing in high-performance aftermarket automotive parts, including turbochargers, exhaust systems, suspension kits, and electronic control units. Their products are designed for enthusiasts seeking to enhance vehicle performance, offering reliable and precise components for various builds and driving scenarios.