L25–YAMI (闇) • Sleeper Turbo • 300–330 hp
Top-mount turbo on a stock-refreshed bottom end — OEM+ stealth that pulls.
The calm daily that hits hard. Compact frame, OE-like routing, and DMS torque shaping for smooth drivability.
Quick Specs
Bottom End
Stock refreshed (bearings/seals)
Stock refreshed (bearings/seals)
Turbo Frame
Small • V-band top-mount
Small • V-band top-mount
Output (dyno)
300–330 hp • 380–430 Nm
300–330 hp • 380–430 Nm
Calibration
Street sleeper map • boost-by-gear
Street sleeper map • boost-by-gear
Sleeper Focus
Quiet exterior, OE manners. Torque curves shaped for traction and gearbox care; no sudden spike.
Thermal Care
Correct heat shielding, quality hoses & clamps, and intercooler spec chosen for your climate/usage.
Hardware Layout
- Shared DMS top-mount architecture (common service parts)
- Compact small-frame turbo for fast spool & midrange
- OE-like routing and packaging for a clean bay
- Front-mount intercooler (compact) • 3.0” cat-back optional
- ECU: boost-by-gear • torque & temp safeties
Chassis & Suspension
- Aim: stealth looks, settled ride, confident traction.
- Sport dampers + progressive springs (~20 mm drop)
- Mild front ARB; stock/mild rear to preserve rear grip
- Healthy LSD & street-stiff mounts
Brakes & Wheels/Tires
- Fast-road pads • braided lines • high-boil DOT 4/5.1
- 17×8 with 225/45-17 UHP (OEM wheels optional for sleeper look)
Safety & Structure
- Low-profile 4-point rollbar recommended
- Fire-sleeved lines • proper clamps • heat shields in all hot zones
- ECU protections active for driveline/tyre care
Build Idea
Stealth answer: compact turbo on a refreshed stock bottom end, fast spool for the street, predictable heat and repeatable performance.