Hi

Yeah you heard right, you do have to change the p/steering pipe and dipstick.

The easiest way to fit the sytem is to buy a ST170 s/steel exhaust. The down pipe flange is alot bigger than the 2.0l one.

Also i am asuming you have the ST170 cat and Flexi pipe.....

Apart from that they fit fine

Regards

Tom aka Zippy