C8 Corvette Stingray MRT Sport Touring Cat-Back Exhaust

 

The MRT Sport Touring Cat-Back Exhaust (Part No. 91S220) is engineered for the 2020–2026 Chevrolet Corvette Stingray (C8) 6.2L LT2 V8. 

It is designed for drivers seeking a deeper, more aggressive exhaust note without excessive cabin drone, making it well-suited for both spirited driving and long-distance touring.  

**Key Features

• Vehicle Compatibility: 2020–2026 Chevrolet C8 Corvette Stingray (1LT, 2LT, 3LT, including Z51 package)
• Material: T304 stainless steel construction
• Pipe Diameter: 3-inch mandrel-bent tubing
• Exhaust Design: H-pipe crossover for improved exhaust pulse balance
• Tips: Quad 4-inch double-wall polished stainless steel tips (optional Black Ops matte black finish)
• Valve Support: Includes a plug-and-play valve simulator module to prevent a check engine light after removing the factory valve system
• Warranty: Limited lifetime warranty
• Made in: USA  

Performance Benefits

• Deeper, richer American V8 exhaust tone.
• Approximately 10–15% louder than the factory performance exhaust while remaining refined.
• Improved exhaust flow for enhanced throttle response and modest horsepower gains.
• Very low cabin drone, making it comfortable for everyday driving.
• Direct bolt-on installation with no cutting or welding required.  

MRT Performance Ratings

According to MRT:

• Loudness: 8/10
• Performance: 9/10
• Drone: 1/10 (very minimal)  

Sound Character

Unlike many C8 exhausts that use an X-pipe, MRT employs an H-pipe configuration. This gives the LT2 V8:

• A deeper, classic American muscle-car rumble at idle.
• A fuller, more aggressive growl during acceleration.
• A refined, comfortable cruising sound with almost no drone.  

Installation

• Estimated installation time: 5–6 hours
• Professional installation is recommended due to the need to remove the rear bumper assembly.  

Best For

This exhaust is ideal if you want:

• A noticeable but refined sound upgrade.
• Comfortable daily driving with minimal drone.
• Improved exhaust flow without sacrificing drivability.

If your goal is maximum volume and an aggressive track-oriented sound, MRT recommends its Street Race Cat-Back (91S225) instead. 

For most street-driven C8 Stingrays, however, the Sport Touring 91S220 strikes an excellent balance between performance, comfort, and an unmistakable V8 soundtrack.  

C8 Corvette Stingray MRT Sport Touring Cat-Back Exhaust

TODA RACING SPORTS INJECTION KIT FOR CIVIC CRX INTEGRA B16A B16B B18C-R 17100-B16-458

 

TODA RACING SPORTS INJECTION KIT FOR CIVIC CRX INTEGRA B16A B16B B18C-R 17100-B16-458

The TODA Racing Sports Injection Kit 17100-B16-458 is a premium Individual Throttle Body (ITB) intake system designed for naturally aspirated Honda B-Series VTEC engines. 

It replaces the factory single throttle body and intake manifold with four individual 45 mm throttle bodies, dramatically improving throttle response, induction sound, and high-RPM airflow.  

**Specifications

• Compatible engines:
• Honda B16A
• Honda B16B
• Honda B18C Type R
• Throttle body diameter: 45 mm
• Trumpet length: 88 mm (the “-458” suffix identifies the 88 mm trumpet version)
• Fuel rail: Designed to work with the standard B16 injector spacing
• Injectors: Not included (uses compatible injectors separately)  

Main Advantages

• Extremely sharp throttle response thanks to one throttle per cylinder.
• Higher airflow than the factory intake manifold.
• Increased horsepower at high RPM while also improving mid-range torque when properly tuned.
• Equal-length intake runners improve cylinder filling consistency.
• Produces the classic high-pitched Honda ITB induction sound.  

Required Supporting Modifications

To achieve the best performance, this kit generally requires:

• Standalone ECU (such as MoTeC, Haltech, Link, or Hondata with suitable conversion)
• Professional dyno tuning
• High-flow fuel system if targeting high power
• Performance camshafts (optional but highly recommended)
• Free-flow exhaust header and exhaust system
• Velocity stacks or an airbox/filter setup

Important: This kit does not work with the factory ECU and requires aftermarket engine management.  

45 mm vs. 50 mm Version

TODA recommends:

• 45 mm throttle bodies for most street and track-day cars, offering excellent drivability and strong mid-range.
• 50 mm throttle bodies for highly modified or race-oriented B18C-R engines operating at very high RPM.  

Ideal Applications

• Honda Civic EG6
• Honda Civic EK9 Type R
• Honda Integra DC2 Type R
• Honda CR-X EF8 SiR

Estimated Performance

On a well-built naturally aspirated B16B or B18C-R with aggressive cams, high compression, proper exhaust, and a quality tune, this ITB system can provide:

• Noticeably faster throttle response.
• Stronger mid-to-high RPM power delivery.
• Peak power gains typically in the 10–20 hp range compared with a quality single-throttle intake setup, depending on the overall engine build and calibration.  

For enthusiasts building a high-revving naturally aspirated Honda, the TODA Racing 17100-B16-458 is considered one of the benchmark ITB systems, combining OEM-level machining quality with excellent drivability and race-proven performance.

TODA RACING SPORTS INJECTION KIT FOR CIVIC CRX INTEGRA B16A B16B B18C-R 17100-B16-458

FEEL'S HONDA TWINCAM SUPER TORQUE CONVERTER FOR HONDA CIVIC EG6 FEELS-00396

 

FEEL'S HONDA TWINCAM SUPER TORQUE CONVERTER FOR HONDA CIVIC EG6 FEELS-00396

The FEEL’S Honda Twincam Super Torque Converter (FEELS-00396) is a highly specialized automatic transmission upgrade developed by Honda Twincam (FEEL’S) exclusively for Honda automatic transmissions. 

Unlike a stock torque converter, it is modified to deliver a more direct driving feel, quicker acceleration, and improved drivability.  

Key Features

• Designed for automatic (AT) EG6-based drivetrains
• Compatible with Honda automatic transmissions used in the Civic EG series.
• Requires your original torque converter as the base unit for modification.  
• Higher Torque Multiplication
• Internal modifications increase the converter’s torque multiplication ratio.
• More engine torque reaches the wheels during launch.
• Faster standing-start acceleration.
• Improved Stall Characteristics
• Allows the engine to reach a more effective RPM before fully coupling.
• Particularly beneficial for high-revving Honda VTEC engines such as the B16A.
• Reduced Shift Shock
• FEEL’S optimizes hydraulic characteristics to produce smoother gear engagement while maintaining a sporty feel.
• Better Drivability
• Stronger pull from low RPM.
• Easier hill starts.
• Better response when carrying passengers or cargo.
• FEEL’S also states that improved torque transfer can help fuel efficiency during normal driving.  

How It Works (Explanation)

A factory torque converter behaves like a fluid coupling:

• Pump (Impeller) → driven by the engine.
• Turbine → drives the transmission.
• Stator → redirects oil flow to multiply torque.

The FEEL’S unit modifies internal geometry and hydraulic characteristics so that:

• torque multiplication is increased,
• converter slip is reduced once moving,
• launch becomes more aggressive,
• engine reaches its powerband faster before lock-up.

Think of it as giving an automatic Honda much of the crisp throttle response associated with a manual transmission, while retaining the convenience of an automatic.

Advantages

✅ Faster launches

✅ Better throttle response

✅ More direct connection between engine and wheels

✅ Smoother gear changes

✅ Stronger acceleration without increasing engine power

✅ Excellent for naturally aspirated VTEC engines

Best Applications

This converter is ideal for:

• Daily-driven automatic Hondas
• Street performance builds
• B16A-powered EG Civics
• Mild turbo setups
• Drivers who want improved acceleration without converting to a manual gearbox

Things to Know

• It is not a simple bolt-on replacement in most cases; FEEL’S specifies that your original torque converter is typically modified, and it cannot be processed if it is damaged.  
• Installation should be performed by an experienced automatic transmission specialist.
• Using fresh ATF and ensuring the transmission is in good condition is strongly recommended.

FEEL'S HONDA TWINCAM SUPER TORQUE CONVERTER FOR HONDA CIVIC EG6 FEELS-00396