400CV OMOLOGATI su Nissan Silvia S15 | Com’è possibile?!

A Nissan Silvia S15 with over 400 horsepower… fully approved. Yes, on the road, with license plates. In this video, we take you inside a project done to perfection: aesthetically, the car has remained completely original, a full sleeper. The only visible element is the approved rollbar. Everything else happens under the hood, maintaining a stock-looking engine bay. The engine has been stroked, with significant work on the internal mechanics: crankshaft, pistons, cams, valve springs, and all the components necessary to reliably handle over 400 real horsepower. Not an improvised setup, but a meticulously constructed job. We test drive it to understand what an S15 like this really feels like to drive: engine response, torque, acceleration, and overall behavior, and we give it a final check to fine-tune the mapping. Subscribe to Garage 52 for more test drives, complete builds, and technical insights on serious engine upgrades. ✅ Use carVertical and SAVE 20%! Discount code: GARAGE52 or click here: ➡️ https://beacons.page/garage52 ➜ Videographer and Social Media Manager: [email protected]   / nicoloalario