Well, there are several different GTS's in the R33 release. There is the GTS, GTS25, and GTS25T. Their engines are RB20E(97kw@5600rpm
172Nm@4400rpm), RB25DE(142kw@6400rpm
231Nm@4800rpm), and RB25DET(187kw@6400rpm
295Nm@4800rpm). Of course the GTR has the RB26DETT (208kw@6800rpm 368Nm@4400rpm). I think things are basicaly the same between the GTS's accept engine (And perhaps gear ratio)
GTS 25T
Garrett Ceramic Turbocharger with intercooler
Variable valve timing on inlet
Power assisted, speed sensitive steering
HICAS 4 Wheel Steering
ABS brakes (optional)
Climate Control A/C
General Data
Curb Weight 1390 Kg
Length 4640 mm
Width 1720 mm
Height 1340 mm
Wheelbase 2720 mm
Turning Circle 10.4 m
Chassis & Body
Body Type 4 door saloon or 2 door coupe
Layout Front engine/RWD
Wheels F/R 16 x 6.5 JJ
Tyres F/R 205/55 R16 or 225/50 R16
Brakes Ventilated: 4 pot front, 2 pot rear
Steering Rack & Pinion (front) HICAS (rear)
Suspension F/R Independent multilink
Engine Type
RB25DET Twin cam, in-line 6, Turbocharged
Displacement 2498 cc
Compression Ratio 9.0:1
Max. Power; kW/HP 187/250 @ 6400 rpm
Max. Torque; Kg-m/ft/lbs 30.0/213 @ 4800 rpm
Bore & Stroke 86.0 x 71.7
Redline 7000 rpm
Fuel Injection Nissan EGI (ECCS)
Fuel Tank Capacity 65 litres (14 gals)
Fuel Super Unleaded (97 octane)
Performance
0 - 100 km/h (62 mph) 6.96 s (approx 6.74 s, 0-60 mph)
0 - 400m 14.30 s
0 - 1000m 26.91 s
Top Speed 266 km/h (165 mph)*
Drivetrain
Transmission 5 speed manual
Gear Ratios Maximum Speed in Gears (* theoretical)
1 3.214 62 km/h (38 mph)
2 1.925 104 km/h (65 mph)
3 1.302 154 km/h (96 mph)
4 1.000 200 km/h (124 mph)
5 0.752 266 km/h (165 mph)*
Reverse 3.369 59 km/h (37 mph)
Final 4.363
Cd 0.?? 0.35
Overall Length (mm) 4,675
Overall Width (mm) 1,780
Overall Height (mm) 1,360
Wheelbase (mm) 2,720
Track Front (mm) 1,480
Track Rear (mm) 1,490
Ground Clearance (mm) 145
Curb Weight (kg) 1,540
Laden Weight (kg) 1,760
Turning Radius (m) 5.7
Tyres 245/45 ZR17
Engine RB26DETT
Displacement (cc) 2,568
Bore x Stroke (mm) 86.0 x 73.7
Max. Power (PS2 @ rpm) 328 @ 6,420 (According to personal dyno in UK)
Max. Torque (kgm @ rpm)37.5 @ 4,400
Compression Ratio 8.5:1
Gear ratios
1st 3.214
2nd 1.925
3rd 1.302
4th 1.000
5th 0.752
Reverse 3.369
Final drive 4.111
Basicaly the GT-R is more sport tuned in every way, it has bigger tyres, larger brakes, stiffer suspension, more power, more turbos

, More engine, ATTESSA ETS (Or Pro if you want a V-spec). If you can't swing a GTR but still want a skyline, your next best bet would be a GTS-4. The R33s come with an RB25DE that put out 142kw and with the application of a large turbo, I/H/E and some other bits can rival GTR 400m times for.