P1 Springs are now on the Bilstein's and below are the 'Ride Height' Comparisons :
Eibach Sportline
Front 648mm
Rear 652mm
Tein S-Tech
Front 633mm (-15mm Vs Eibach)
Rear 628mm (-24mm Vs Eibach Sportline)
P1 Eibach (Red's)
Front 648mm (-0mm Vs Eibach Sportline)
Rear 645mm (-7mm Vs Eibach Sportline)
The handling of the P1 Springs out performs the Tein's. The car no longer has a soft rear end when cornering and there's isn't so much dive when braking heavy. Overall quite a transformation. It has changed from un-settled (both car & driver), to handling where you feel you can push on harder.
It's a shame though that the P1 springs didn't drop the ride height more. Although they are new springs, so I hope a few more millimetres are dropped in time.
Below are the springs off the car.
It's clear that the P1 Eibach (Red's) are the shortest of the lot when off the car. But the heavier gauge and stronger poundage means they don't compress down as much as the Tein's.
Poundage has differences :
Eibach Sportline 171lb
Tein S-Tech Front 179lb
P1 Eibach Front 215lb
Eibach Sportline 188lb
Tein S-Tech Rear 179lb
P1 Eibach Rear 195lb
I was expecting a much harsher ride due to those figures above, but it all seems quite compliant. I suppose Prodrive & Eibach combined, do know what their doing
Front's
Rears :
The only question now is "What would the Tein's be like with a 24mm ARB and a Rear Diff/Cross-member lock ?"