Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, 2006 CTS Rotor fitment with Sport and Luxury Package in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I don't have the window sheet available right now but I know the car was ordered with both packages. I ...
Re: 2006 CTS Rotor fitment with Sport and Luxury Package
Thanks, I'm on it. Looks like JL9s. Would it be accurate that any GM car with a JL9 code have identical rotors...would STS 11.93" rotors be the same thing? I noted v12motorsports offers a rotor pad package for the STS and identifies them by code but their CTS offering only indicates them as standard as opposed to sport.
Automobile(s): White Diamond 06 STS V8 RWD 1SF F55 HUD/ACC NAV - 126k
JL9 is "standard", JE5 is the "sport" or performance option, at least on the STS's. Only 06-07 CTS could get the larger JE5 12.72" rotors, the rest are almost all JL9 I believe.
Can another CTS owner confirm the RPO's are the same across the two models? Also not sure if the rotor diameter is the same on both CTS's and STS's with the same brake option. I would imagine that's the case but not 100%.
Edit: After doing a little online Googling I found that both CTS and STS with JL9 brakes have 11.92" front rotors so OP, yes, JL9 rotors from a STS will be the same. My JE5 front rotors are the same size as the 06-07 "Sport" equipped CTS, 12.72".