I have a set of Champion 20" wheels that I used to have on my 997.2 C4s. The front wheels should be fine but my question are the rears. The specs are 11x20 ET41. Does anyone know whether these would fit the 991.1 C4s ?

Many thanks!

 

Google is your best friend, just look up the offset specs on the line..... something like tirerack or suncoast, easy to find

Wheel Dimensions:

Carrera/Carrera S
- Front - 8.5 x 20 ET 51
- Rear - 11 x 20 ET 70

Carrera 4/Carrera 4S/ Targa / GTS
- Front - 8.5 x 20 ET 51
- Rear - 11 x 20 ET 52

Recommended Tire Dimensions:

Carrera/Carrera S
- Front - 245/35 ZR 20 (91Y)
- Rear - 295/30 ZR 20 (101Y) XL

Carrera 4/Carrera 4S/ Targa / GTS
- Front - 245/35 ZR 20
- Rear - 305/30 ZR 20 (103Y) XL

 

Thanks. My question is whether the ET41 of my Champion wheels can be used on my car that currently has the ET52 wheels?

Merry Christmas!

 

Well, the difference is 9mm out towards the fenders (given both rims are same width). Measure how much room you currently have and depending on the tires you use (looks in the pic not too wide outside the rim), you might be ok.
No way to know for sure unless you measure your vehicle or someone who has done it and can chime in.