Originally Posted by Federighi
Couldn't find any direct input specifically A & B'ing the subject. Does anyone have any experience using the MS spring with OEM Bilstein's &/or MS shocks? Which did you prefer & why? Any valuable comments or observations are greatly appreciated.
I have a 40th edition and I recently went through all the BS to find out whats different with our suspension.
In the front - nothing has changed
In the rear, Mazda raised the perch height by 15mm and increased the shock length by 10mm.
This sucks because we are now limited to the OEM Bilstein's or Koni 8240-1280 Sport shocks.
With that (and I will confirm this next week) our spring length in the rear is also different the the NON-Bilstein RX8's.
So the bottom line, use your OEM springs or buy coilovers.
If you talk to Racing Beat they will tell you that their springs do not match the Bilstein suspension and from my understanding the Mazdaspeed springs are identical in length to the RB's.
I will be pulling the suspension out of my 40th Ann next week and I will compare some measurements and report back.