Reducing exhaust weight and improving flow are two of the most effective upgrades available for the R34 GT-R. The Tomei Expreme Ti Exhaust System (part number TB6090-NS05C) is a full-titanium cat-back designed specifically for the Nissan Skyline R34 GT-R (BNR34) with the RB26DETT engine, combining a competition-oriented layout, substantial mass savings, and durable titanium construction.
The system uses 89.1 mm (3.5-inch) main piping with a thin-wall titanium design and follows a straight, racing-inspired path that minimizes bends to reduce backpressure and improve exhaust gas velocity. A large-diameter silencer and 115 mm tip complete the assembly, producing the sharp, purposeful note associated with Tomei’s Expreme Ti series. Total system weight is only about 7.05 kg—roughly 11 kg lighter than the factory steel exhaust—delivering a meaningful reduction in rear mass that benefits both acceleration and handling response. A removable sound reducer is included for situations where lower volume is preferred.
Built for enthusiasts who value both performance and authenticity, the Expreme Ti system offers the flow capacity and weight advantages expected from a properly engineered titanium exhaust. At Terra Firma Automotive, we supply this genuine Tomei Titanium Exhaust System as a premium upgrade for R34 GT-R owners seeking measurable gains in response, power potential, and overall vehicle dynamics. Choose Terra Firma Automotive for authentic Japanese titanium exhaust components that deliver real results on the legendary RB26DETT platform.
- Genuine Tomei Expreme Ti Titanium Exhaust System
- Part Number: TB6090-NS05C
- Application: Nissan Skyline R34 GT-R (BNR34) RB26DETT
- Full titanium construction
- Main pipe diameter: 89.1 mm (3.5 inch)
- Tip diameter: 115 mm
- Total weight: approximately 7.05 kg (significantly lighter than stock)
- Racing layout with minimal bends
- Includes removable sound reducer
- Reduces backpressure and improves exhaust flow
- Substantial weight savings over factory system
- Aggressive yet controllable exhaust note
- Designed for performance and competition use
- Trusted Japanese titanium exhaust engineering
- Available from Terra Firma Automotive
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