I may buy a BBK from a 3rd gen TL, but want to make sure it will fit my 03 CL-S 6SPD.

These are the questions I have:

Are the mounting brackets the same? If not, what is required?
Are the SS brake lines the same? I am 98% sure they are not.
Will I need spacers with stock CL-S wheels? My guess is yes, but how many mm? Also, what about if I put TSX wheels on?
What else should I know before purchasing?

 

I have the Rotora BBK. If you take pics I will be happy to compare. I dont know about the bracket but I do have 2005 TL wheels on my CLS and you will need at least a 5mm spacer for the caliper/wheel clearance on the OEM wheel. Excelerate has them for about 70 a pair. PM him He knows all about these kits. What else should you know, They Fing rock! I find myself stoping four car lengs earlier than I normaly would have. The cool factor is through the roof. Standing on the brakes in the CLS at any speed is now a thrill ride. WOW! Can you tell I just got mine on? Jim

 

The difference is the SS lines. Everything else is the same. You will require a 5mm spacer in order for the stock CL wheels to clear.

 

lines, i had the same issue, swapped the lines and its fine.