Vortech V-2 Si-Trim Tuner Kit & Charge Cooler - Polished (2003-2006 Nissan 350Z Non Rev-Up) 4NZ218-118Si
Polished V-2 Si-Trim Tuner Supercharger Kit for Nissan 350Z
The Vortech V-2 Si-Trim Tuner Kit & Charge Cooler (PN 4NZ218-118Si) is a race-oriented, custom-tunable supercharger solution engineered for the 2003-2006 Nissan 350Z Non Rev-Up. Finished in a high-visibility polished configuration, this kit is designed for experienced builders who want full control over fueling, tuning, and overall power delivery.
As a tuner kit, this system is intentionally supplied without fuel system upgrades or ECU programming, allowing custom calibrations and supporting modifications tailored to the vehicle's intended use. An included air-to-air Charge Cooler improves intake air temperatures and supports higher sustained power levels.
V-2 Si-Trim Supercharger Technology
The V-2 Si-Trim centrifugal supercharger is built for high-efficiency airflow and durability under aggressive use. Developed through extensive testing in Vortech's supercharger lab, the Si-Trim delivers up to 75% adiabatic efficiency (SAE J1723), reducing heat generation, lowering parasitic loss, and increasing net horsepower.
Unlike the self-contained V-3 units, the V-2 series shares engine oiling, making it especially well suited for continued boost conditions such as road racing, time attack, or extended high-load operation. This design also allows the use of external oil coolers or filtration if desired.
Tuner Kit Configuration
This system is delivered as a tuner kit, meaning it does not include fuel injectors, fuel pump upgrades, or ECU calibration. This provides maximum flexibility for custom fuel strategies and advanced engine management.
Air-to-Air Charge-Cooled Design
The included air-to-air Charge Cooler helps reduce intake air temperatures and increase charge density, supporting improved reliability and higher horsepower potential in boosted applications.
Included Components & Features
- Gear-driven V-2 Si-Trim centrifugal supercharger with SQ technology for quiet, efficient operation
- Air-to-air Charge Cooler assembly
- High-efficiency impeller and compressor housing developed in Vortech's test cell
- Billet aluminum supercharger mounting bracket for factory-style appearance and rigidity
- Maxflow Race Bypass Valve for surge-free operation
- Heat-resistant silicone couplers with premium stainless steel clamps
- Reusable high-flow air filter
- Complete supercharger drive system with all required belts and pulleys
Tuning & Upgrade Notes
- No fuel system upgrades or ECU tuning included
- Custom fuel system components and professional tuning required
- Higher-output supercharger options available depending on power goals
- Tuner kits can support 500+ horsepower with proper supporting modifications
Installation Notes
- Installation time varies depending on configuration and supporting modifications
- Professional installation and custom tuning strongly recommended
Quick Specs
- Manufacturer: Vortech Superchargers
- Part Number: 4NZ218-118Si
- System Type: Tuner Supercharger Kit
- Supercharger: V-2 Si-Trim
- Charge Cooling: Air-to-Air Charge Cooler
- Finish: Polished
Fitment
- 2003 Nissan 350Z Non Rev-Up
- 2004 Nissan 350Z Non Rev-Up
- 2005 Nissan 350Z Non Rev-Up
- 2006 Nissan 350Z Non Rev-Up
Emissions & Legal Notice
- NOT AVAILABLE OR LEGAL FOR SALE IN CALIFORNIA
- Tuner kits are for off-road and competition use only
- Not CARB legal
- Installation on emissions-controlled vehicles driven on public roads may violate U.S. federal emissions law
Warranty Information
- 1-Year Supercharger Limited Warranty included
- 3-Year warranty only available when V-3 superchargers are purchased as part of a complete street-legal system
FAQs
- Does this kit include tuning or fuel system upgrades?
No. This is a tuner kit and requires custom fuel system components and ECU calibration. - Is this system street legal?
No. This tuner kit is not CARB legal and is intended for off-road or competition use only.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Vortech Superchargers dealer with deep experience supporting Nissan 350Z forced-induction builds. From track-focused tuner kits to complete street systems, we help ensure your setup is configured correctly for reliable power and long-term performance.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
