There are a bunch of other goodies we don't really understand, but most were all produced by Sunline R, like the Super surge tank, Super BIG Throttle, custom-made Titanium front pipe, V-mount cooling system, Side Tank three-layered aluminum racing radiator, Super Radiator surge tank, water by-pass block, Super SR Block and GT cooling panel. Only the turbocharger, oil cooler and intercooler core were produced by Trust, with the latter being produced by HPI.
Sunline's weapon of choice for the exterior is a long list of C-West aero parts, along with a few in-house carbon parts. The reason Sunline chose a mix of C-West parts along with its own was due to the weight-saving benefits of going with all-carbon fiber parts. Not only do they reduce the amount of weight added, but the widened front and rear track accommodates the Endless front six-pot calipers, Brembo rear R33 GT-R calipers and the 17-inch diameter, 10-inch wide SSRs. Yes, that's 10 inches wide on the front and rear. That's what makes squeezing fat Yokohama A048s an easy task. Sunline R's carbon doors, rear diffuser, vented hood, trunk, cannards, and HPI acrylic windows are all also functional; the C-West mirrors and multi-LED taillights, not so much.
With power-up from a Tomei 2.2L engine kit and weight down with all the carbon parts, Sunline focused just as much work dialing in the chassis with Zeal Super Function coilovers customized, again, by Sunline. But it's not just that; Sunline has replaced the tension rods, tie rods, rear suspension arms, stabilizers and added some bars. The Silvia chassis has actually been fully reinforced using Sunline R side seals, main frame urethane foam and a 14-point custom cage. With such a stiff chassis, one out of four wheels is sure to be regularly off the ground under hard lateral acceleration.
Sunline R has yet to bring a car to the U.S. We'd love to see what the Silvia S15 SPL could do in the House of Drift. Yo, Sunline, if you plan on coming over we'd take one for the team and test drive it for you. We promise not to let Jay get in the car. That's a promise, promise.