Invidia R400 Gemini Cat-Back Exhaust - 2017-2021 Honda Civic Type R FK8

Unleash your FK8 Type R's full potential with the Invidia R400 Gemini Cat-Back Exhaust System. Featuring full 76mm (3-inch) piping, front pipe, and triple burnt titanium tips, this complete exhaust delivers aggressive sound with proven gains of +15 HP and +18 lb-ft torque. The ultimate exhaust upgrade for serious Type R enthusiasts.

Key Features:

• Full 76mm (3-inch) exhaust system for maximum flow
• Includes front pipe for complete turbo-back performance
• Triple burnt titanium tips for premium appearance
• Mandrel-bent SUS304 stainless steel construction
• Aggressive, race-inspired exhaust tone
• Proven power gains: +15 HP / +18 lb-ft torque
• Direct bolt-on replacement - no modifications required
• Invidia quality engineering and manufacturing

Performance Benefits:

• Proven Power Gains: +15 HP and +18 lb-ft torque (dyno-tested)
• Maximum Exhaust Flow: 76mm piping eliminates factory restrictions
• Turbo-Back Performance: Front pipe included for complete exhaust upgrade
• Aggressive Sound: Race-inspired tone that showcases the K20C1 turbo
• Premium Aesthetics: Triple burnt titanium tips add high-end appearance
• Weight Reduction: Lighter than factory exhaust for reduced mass

Specifications:

• Brand: Invidia
• Part Number: HS17CTRFGM3ST
• Product Line: R400 Gemini
• System Type: Cat-back with front pipe (turbo-back)
• Piping Diameter: 76mm (3 inches) full system
• Material: SUS304 stainless steel
• Construction: Mandrel-bent
• Tips: Triple burnt titanium (center exit)
• Power Gains: +15 HP / +18 lb-ft torque
• Installation: Direct bolt-on replacement
• Weight: 71.3 lbs

Fitment Information:

• Compatible Vehicles:
• 2017-2021 Honda Civic Type R (FK8)
• Engine: 2.0L K20C1 turbocharged
• Note: Designed specifically for FK8 Type R. Not compatible with standard Civic models.

What's Included:

• Invidia R400 Gemini cat-back exhaust system (complete)
• Front pipe (downpipe to mid-pipe connection)
• Triple burnt titanium tips (center exit)
• Gaskets and hardware
• Installation instructions

Installation Notes:

• Professional installation recommended
• Direct bolt-on replacement - no cutting or welding required
• Installation time: approximately 2-3 hours
• Lift or jack stands required
• Basic hand tools needed
• Apply anti-seize to all bolts for future removal

Full 76mm System with Front Pipe:

The Invidia R400 Gemini features full 76mm (3-inch) piping throughout the entire system, including the front pipe. This creates a complete turbo-back exhaust upgrade that dramatically reduces backpressure and allows the K20C1 turbo engine to breathe freely. The result is proven power gains, improved throttle response, and enhanced turbo spool.

Mandrel-Bent SUS304 Stainless Steel:

All piping is mandrel-bent to maintain consistent internal diameter throughout each bend, eliminating the crimping and restriction that occurs with crush bending. The SUS304 stainless steel construction provides exceptional durability, corrosion resistance, and heat tolerance. This premium material ensures the exhaust maintains its appearance and performance even after years of use.

Triple Burnt Titanium Tips:

The triple burnt titanium tips feature a stunning burnt titanium finish that adds a premium, high-end appearance to your Type R. The center-exit triple tip design fills the rear bumper cutouts perfectly and creates an aggressive, race-inspired look. The titanium construction is lightweight and corrosion-resistant, maintaining its appearance over time.

Aggressive R400 Sound:

The Invidia R400 Gemini delivers an aggressive, race-inspired exhaust tone that showcases the K20C1 turbo engine's character. The sound is loud and exciting during acceleration, with enhanced turbo spool and blow-off valve noise. At cruising speeds, the exhaust maintains a refined tone with minimal drone, making it suitable for daily driving.

Proven Power Gains:

Dyno testing shows the Invidia R400 Gemini delivers +15 HP and +18 lb-ft torque on a stock FK8 Type R. These gains come from the improved exhaust flow and reduced backpressure throughout the entire system. When combined with other modifications (intake, downpipe, tune), the gains are even more significant as the exhaust supports higher power levels.

Direct Bolt-On Installation:

The R400 Gemini is designed as a direct bolt-on replacement for the factory exhaust. No cutting, welding, or permanent modifications are required. The system uses factory mounting points and includes all necessary gaskets and hardware for a straightforward installation.

Why Invidia?

Invidia has been engineering high-performance exhaust systems for over 15 years, with a focus on quality, performance, and value. Their exhausts are dyno-tested and proven on tracks and streets worldwide. Every Invidia exhaust is manufactured to strict quality standards and backed by their commitment to customer satisfaction.

Sound Level:

The Invidia R400 Gemini delivers an aggressive exhaust note:

• Idle: Deep, aggressive rumble
• Cruising: Refined tone, minimal drone
• Acceleration: Loud, aggressive exhaust note with turbo spool
• WOT: Very loud and aggressive - true race sound

Perfect Pairing:

For maximum performance, pair the Invidia R400 Gemini with:

• Cold air intake for improved airflow
• High-flow downpipe for complete turbo-back system
• Upgraded intercooler for lower intake temps
• ECU tuning to optimize for modifications

Installation Tips:

• Allow factory exhaust to cool completely before removal
• Use penetrating oil on factory bolts if rusted
• Support exhaust system during removal to prevent damage
• Install new gaskets for proper sealing
• Tighten all hardware to proper torque specifications
• Check for exhaust leaks after installation
• Apply anti-seize to all bolts for future removal

Perfect For:

• FK8 Type R owners seeking maximum power gains and aggressive sound
• Track day enthusiasts needing better exhaust flow
• Daily drivers who want race-inspired tone without excessive drone
• Anyone wanting complete turbo-back exhaust upgrade
• Type R owners seeking premium titanium tip aesthetics

Perfect For: FK8 Type R owners seeking maximum performance with aggressive sound, premium titanium tips, and proven power gains from a complete turbo-back exhaust system.

Pro Tip: Pair with a high-flow downpipe and ECU tuning for maximum power gains - the R400 Gemini supports 400+ HP builds.

Dyno-Proven: +15 HP and +18 lb-ft torque gains tested and verified on Invidia's dyno.

Unleash your FK8 Type R with Invidia R400 Gemini - full 76mm, front pipe, triple titanium tips, +15HP/+18TQ, aggressive sound, bolt-on installation.