Tomei Powered — Japan
The Tomei Expreme Ti is the definitive full titanium cat-back exhaust for the Nissan 350Z VQ35DE — built for true competition use without compromise. A racing-layout straight-through design, Tomei's own-sourced titanium throughout, and a staggering weight reduction of over 33 lbs versus the factory system make this the single best exhaust upgrade available for the Z33 platform.
Key Specifications
Material
Full Titanium
Tomei-sourced, competition-grade
Main Pipe Diameter
80.0 mm (3.15")
vs. 60.5 mm OEM stainless
Silencer Diameter
152 mm (5.98")
Oversized for optimized flow
Exit Tip Diameter
115 mm (4.53")
Single exit — Expreme Ti logo etched
Pipe Wall Thickness
1.0 mm
vs. 1.5 mm OEM stainless
Flange Connection
2-Bolt Flange
8 mm flange — gasket included
Weight Savings vs. OEM
Why the Expreme Ti
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Racing layout — fewest bends possible
Tomei designed the pipe routing as straight as a purpose-built race exhaust while still fitting within the stock 350Z body. Less restriction means better gas velocity and more power across the entire VQ35DE powerband.
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Pipe diameter matched to the VQ35 powerband
The 80 mm main pipe diameter was specifically chosen for the VQ35DE's torque characteristics — sized to deliver gains throughout the rev range, not just at peak RPM. The OEM system runs a restrictive 60.5 mm pipe.
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Tomei's own-sourced titanium
Sourcing their own raw material gives Tomei complete control over quality while keeping the price competitive. Every pipe, silencer shell, and tip is 1.0 mm titanium — not stainless, not aluminized steel.
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Dry race sound — titanium-only tone
Full titanium construction produces a distinct dry, high-frequency race note that stainless systems cannot replicate. On a naturally aspirated VQ35, it's the exhaust note the 350Z should have left the factory with.
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Oversized 152 mm silencer with punched titanium mesh
The silencer uses a 32.6% open-slot titanium mesh insert and long-fiber glass wool rated for sustained high-temperature use — track or daily. The oversized shell optimizes gas flow without sacrificing durability.
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Precision TIG welds with gas lens and back-shield jigs
Titanium is notoriously difficult to weld without compromising strength. Tomei uses gas lens TIG equipment and back-shielding jigs to achieve gold/silver weld coloring — the physical sign of a defect-free weld.
Kit Contents
Full Technical Specifications
| Brand | Tomei Powered (Japan) |
| Product Line | Expreme Ti — Full Titanium Muffler Kit |
| Part Number | TB6090-NS04A |
| Tomei Product Name | Type-R (Single Exit) |
| Compatible Vehicle | Nissan 350Z (Z33) |
| Compatible Engine | Nissan VQ35DE |
| System Type | Cat-back muffler kit (3-section pipe assembly) |
| Exit Configuration | Single exit — left rear |
| Material | Full Titanium — Tomei-sourced raw material |
| Main Pipe Diameter | 80.0 mm / 3.15 in |
| Main Pipe Thickness | 1.0 mm |
| Silencer Diameter | 152 mm / 5.98 in |
| Silencer Thickness | 1.0 mm |
| Exit Tip Diameter | 115 mm / 4.53 in |
| Flange Thickness | 8.0 mm (matches OEM flange spec) |
| Flange Connection | 2-bolt flange with 2.0 mm gasket included |
| Pipe-to-Pipe Connection | Clamp band + hook springs (no gaskets between sections) |
| System Weight | 5.9 kg / 13.1 lbs |
| OEM Weight (replaced) | 21.0 kg / 46.3 lbs |
| Weight Reduction | 15.1 kg / 33.2 lbs |
| Condition | Brand New |
| Country of Origin | Japan |
Installation Notes
The Expreme Ti connects to the factory mid-pipe via a 2-bolt flange — a 2.0 mm gasket is included. No cutting or fabrication is required on a stock 350Z undercarriage. Between pipe sections, the Mikalor clamp band and spring system creates a gasket-free, vibration-absorbing seal. Professional installation is recommended to confirm clearance on lowered cars. The Tomei installation manual is available at tomeiusa.com. Questions about your build? Call Dynosty at 502-384-8882.
