HKS Metal Catalyzer Sports Cat Downpipe for Toyota GR Supra
The HKS downpipe for the Toyota Supra in Metal Catalyzer Sports represents the ultimate balance between performance and compliance. By reducing the cell density from the factory 600-cell to a high-performance 150-cell design, this downpipe achieves a remarkable 40% reduction in exhaust backpressure while maintaining excellent emissions control through optimized catalytic precious metals.
Key Performance Features
| Feature | Technical Specification | Performance Benefit |
|---|---|---|
| Catalyzer Design | 150-cell metal substrate (vs OEM 600-cell) | 40% lower exhaust pressure for improved flow |
| Power Increase | +13PS (HKS in-house testing) | Noticeable gains throughout powerband |
| Outlet Construction | Lost-wax casting process | Optimized exhaust gas flow path |
| Emissions Compliance | WLTC tested with certification | Street legal performance upgrade |
| Noise Levels | 89dB (vs stock 84dB) with OEM muffler | Enhanced sound without being excessive |
Technical Specifications
- Main Material: SUS304 stainless steel
- Pipe Diameter: φ85mm (Front section)
-
Sound Levels:
- Stock system: 84dB (Idle: 58dB)
- With HKS downpipe: 89dB (Idle: 59dB)*
- With HKS Super Turbo muffler: 93dB (Idle: 61dB)
- Emissions: Meets current regulations with optimized precious metal ratio
- Construction: Precision lost-wax cast outlet for ideal flow characteristics
Why Choose HKS Metal Catalyzer?
Unlike generic high-flow cats that compromise emissions compliance, the HKS unit uses a carefully selected ratio of catalytic precious metals to maintain excellent exhaust purification while delivering measurable performance gains. The result is a downpipe that works in harmony with your GR Supra's engine management system, providing real-world performance benefits without check engine lights or emissions test failures.
Complete Package Includes
- HKS Metal Catalyzer Downpipe assembly
- All necessary gaskets and hardware
- Third-party emissions test certification
- Detailed installation instructions
HKS Metal Catalyzer Sports Cat Downpipe for Toyota GR Supra
The HKS downpipe for the Toyota Supra in Metal Catalyzer Sports represents the ultimate balance between performance and compliance. By reducing the cell density from the factory 600-cell to a high-performance 150-cell design, this downpipe achieves a remarkable 40% reduction in exhaust backpressure while maintaining excellent emissions control through optimized catalytic precious metals.
Key Performance Features
| Feature | Technical Specification | Performance Benefit |
|---|---|---|
| Catalyzer Design | 150-cell metal substrate (vs OEM 600-cell) | 40% lower exhaust pressure for improved flow |
| Power Increase | +13PS (HKS in-house testing) | Noticeable gains throughout powerband |
| Outlet Construction | Lost-wax casting process | Optimized exhaust gas flow path |
| Emissions Compliance | WLTC tested with certification | Street legal performance upgrade |
| Noise Levels | 89dB (vs stock 84dB) with OEM muffler | Enhanced sound without being excessive |
Technical Specifications
- Main Material: SUS304 stainless steel
- Pipe Diameter: φ85mm (Front section)
-
Sound Levels:
- Stock system: 84dB (Idle: 58dB)
- With HKS downpipe: 89dB (Idle: 59dB)*
- With HKS Super Turbo muffler: 93dB (Idle: 61dB)
- Emissions: Meets current regulations with optimized precious metal ratio
- Construction: Precision lost-wax cast outlet for ideal flow characteristics
Why Choose HKS Metal Catalyzer?
Unlike generic high-flow cats that compromise emissions compliance, the HKS unit uses a carefully selected ratio of catalytic precious metals to maintain excellent exhaust purification while delivering measurable performance gains. The result is a downpipe that works in harmony with your GR Supra's engine management system, providing real-world performance benefits without check engine lights or emissions test failures.
Complete Package Includes
- HKS Metal Catalyzer Downpipe assembly
- All necessary gaskets and hardware
- Third-party emissions test certification
- Detailed installation instructions
- Mechanical Knowledge: Basic mechanical skills are recommended for installation.
- Professional Installation: For a guaranteed precision fit and optimal performance, we recommend professional installation.
- Vehicle Modifications: As with all engineered aftermarket parts, slight adjustments such as cutting, sanding, or altering may be necessary. This is due to variations in vehicle manufacturing and wear over time.
Need Help?
If you have any questions or need assistance, feel free to contact the Sequential Racing Team—we're here to help!
- Mechanical Knowledge: Basic mechanical skills are recommended for installation.
- Professional Installation: For a guaranteed precision fit and optimal performance, we recommend professional installation.
- Vehicle Modifications: As with all engineered aftermarket parts, slight adjustments such as cutting, sanding, or altering may be necessary. This is due to variations in vehicle manufacturing and wear over time.
Need Help?
If you have any questions or need assistance, feel free to contact the Sequential Racing Team—we're here to help!
Payment Processing: Please allow 1 to 2 business days for payment processing.
Custom Orders: Some products may require customization and are made to order. In such cases, production and delivery may take up to 4 weeks. This information will be clearly stated on the product page.
Order Updates: Our dedicated team will provide guidance and regular updates once your purchase is confirmed.
Payment Processing: Please allow 1 to 2 business days for payment processing.
Custom Orders: Some products may require customization and are made to order. In such cases, production and delivery may take up to 4 weeks. This information will be clearly stated on the product page.
Order Updates: Our dedicated team will provide guidance and regular updates once your purchase is confirmed.
Aftermarket Parts: Most products, including carbon components, are aftermarket parts designed for vehicle modifications. While they are made to fit specific vehicles, slight variations may occur due to manufacturing differences.
Fitment Verification: Upon receiving your item, please verify that you have received the correct part. We strongly recommend performing a test fit before painting or undertaking any permanent installation.
Returns & Warranty: Returns or warranty claims will not be accepted if the product has been tampered with, installed, or is not in its original, new condition.
Aftermarket Parts: Most products, including carbon components, are aftermarket parts designed for vehicle modifications. While they are made to fit specific vehicles, slight variations may occur due to manufacturing differences.
Fitment Verification: Upon receiving your item, please verify that you have received the correct part. We strongly recommend performing a test fit before painting or undertaking any permanent installation.
Returns & Warranty: Returns or warranty claims will not be accepted if the product has been tampered with, installed, or is not in its original, new condition.
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