I went through this last year. If you plan to mod your car to stage 3 or higher, then it would be cheaper to buy a regular TT and swap out the turbos with k24's or better yet hybrids or Kevin's stage 2's. The GIAC flash costs the same for stage 3/4 on both cars. Unless you live in a really warm climate or track the car, it is possible (but maybe not ideal) to get by with stock intercoolers.

 

Porsche 2002 Press Release re: Power Kits:

"On the 911 Turbo, the power kit increases the engine power from 420 BHP (309 kW) at 5000 RPM to 450 BHP (331 kW) at 5700 RPM. At the same time, a maximum torque that has risen to 620 Nm (standard: 560 Nm) is now available between 3,500 and 4,400 URPM. The figure of 560 Nm, which the standard engine provides between 2,700 and 4,600 RPM, is now available between 2,700 and 5,600 RPM on the higher-performance 911 Turbo. This means that its power can be called upon over an extremely wide range of engine speeds. With the acceleration remaining unchanged at 4.2 seconds for 0-100 km/h, the maximum speed has risen from 305 to 307 km/h.

The Porsche engineers have managed to achieve this improvement in power and performance by making modifications, which primarily affect the turbocharger, charge cooler, controllers and exhaust system. The basic designs of the manual and automatic gearboxes have both been reinforced, which means that the increased power can be ordered at a recommended price of 12,644 Euro (price in Germany, including VAT) even for the 911 Turbo Tiptronic. Its maximum speed increases from 298 to 300 km/h with a reduction of the acceleration from 0 to 100 km/h of almost half a second, to 4.5 seconds.

The engine kit for the 911 Carrera brings about an increase in power from 320 BHP (235 kW) to 345 BHP (254 kW) at an unchanged 6,800 RPM and a maximum torque of 370 Nm at 4,800 RPM. In this case, the additional power comes from a modified alloy intake system, modified cylinder heads and a new exhaust manifold, as well as adjustments to the control system, improving acceleration from 0 to 100 km/h by a tenth of a second from five to 4.9 seconds and from 0 to 200 km/h by a whole second to 16.5 seconds. The top speed has increased from 285 to 290 km/h.

Porsche is only offering the manual gearbox version of the power kit for the Carrera. The non-binding recommended price for Germany is 9,628 Euro (inclusive of 16 percent VAT).

Press release 06.02.2002
Porsche AG"

Craig

 

what are the price diffent between regular TT and X50?

 

MSRP $17,700 now standard on the S

 

i ve had a turbo and now drive an S... the S is perfect in between if you want a little more power w/o need to mod for speed..and car is WARRANTIED

 

x50 is only "worth it" if you plan on keeping completely orginal with absolutely no mods.

even if you plan on slightly modding the stock turbo is the way to go.

all other differences are just a moot point.