Dual Spring Kit w/ Titanium Retainers – BMW | S50B30 Euro Version 90lbs @ 35.75mm Seat Pressure

High-performance dual valve spring kit with titanium retainers for BMW | S50B30 Euro Version, improving valve control, high-RPM stability, and durability. This product requires the use of the OEM keeper. Supertech doesn't provide these keepers as part of this spring kit.

Attributes
Spring Type	Dual Valve Spring
Seat Pressure	90lbs @ 35.75mm
Retainer Material	Titanium

Specs
Outer Spring Od	29.65mm
Outer Spring Id	21.85mm
Inner Spring Od	20.50mm
Inner Spring Id	15.50mm
Seat Pressure	90lbs @ 35.75mm
Open Pressure	205lbs @ 10.00mm
Max Lift	14.80mm
Coil Bind	20.70mm
Safe Rpm Limit	8000
Retainer	ret-bms14-t1
Retainer Qty	24
Seat Locator	use oem seat
Seat Locator Qty	24
Kit Spring	spr-h1005d
Rate	11.50lbs/mm
Kit Spring Qty	24