400ps/6,800rpm, 47.8kgm/4,400rpm
Using accumulated results from countless races, with the data being applied for a thorough review and modification, to provide specs focused on increasing engine displacement and the resulting increase of torque and low- and mid-speeds. The result is smooth acceleration and a swift run-up from low and mid to high speed: a special “400R-ness” that makes this completely different from other 400-horsepower class tuning cars.

RB-X GT2 Tuning Items

Special ECCS unit
Increased bore, and accordingly reinforced cylinder block
Cylinder head shape optimized to combustion chamber
Ø87 metal head gaskets, t=1.2
Forged cooling channel pistons
Special forged crankshaft
Special forged connecting rod
N1-spec turbine and reinforced actuator
High-flow air cleaner
Stainless front tube
Low resistance sports catalyst
High injection-valve open pressure (1.3) radiator cap
Air-cooled oil cooler
Sports intercooler
Etc.