W3 Turbocharger

The 27WON W3 Turbocharger represents the pinnacle of the W-series line for the 10th Generation Honda Civic L15 engine, engineered for enthusiasts seeking over 400 wheel horsepower in a complete drop-in solution. It is built upon a TD-05 style center section, allowing for a larger shaft and a more durable ball-bearing cartridge compared to TD-04 housings. This CHRA supports larger compressor (50mm inducer, 68mm exducer) and turbine (55mm inducer, 49mm exducer) wheels, combined with a 0.65 A/R, to maximize mid-range and top-end power delivery, making it ideal for drag or roll racing. This turbo upgrade is designed as a 100% direct replacement, ensuring a reversible installation that works with existing OEM constraints and common aftermarket bolt-on parts like the 27WON inlet pipe and downpipe. A custom heat shield, fabricated from 16ga 304 SS with a laser-cut "W" logo, is included to replace the stock unit due to space constraints. The kit comes complete with new studs, gaskets, nuts, and lines, requiring no core exchange for minimal downtime. Installation is rated at a 5-hour duration with a 4/5 difficulty. Post-installation, 5W-30 engine oil is required. To reliably handle the increased power, upgraded engine block components such as stronger rods and pistons, along with upgraded head studs, are recommended. This turbocharger is not recommended for CVT transmissions due to torque limits, and manual transmission users will need an upgraded clutch.