986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - 2013 981S

stephen wilson · 12-31-2013, 03:54 PM

Yes, you have to be careful of the relative diameters. I went up a size to 245/40 Fronts on my 987, and if I increase the pressure above 30 it's enough to make the PSM kick in.

12-31-2013, 03:54 PM	#5
stephen wilson Registered User Join Date: Apr 2008 Location: Southern New jersey Posts: 1,054	Yes, you have to be careful of the relative diameters. I went up a size to 245/40 Fronts on my 987, and if I increase the pressure above 30 it's enough to make the PSM kick in.