H&R 60mm ID Single Race Spring | Length 300mm | Spring Rate 35 N/mm or 200 lbs/inchInside Diameter: 60mm ID Length: 300mm Spring Rate: 35 N mm or 200 lbs inch H&R was founded by Werner Heine and Heinz Remmen in the 1970's with a simple idea in mind; with improved suspension, vehicles would have more control and better handling.

5L tune delivers an aggressive power upgrade without having to install any hardware modifications

Maximize horsepower & torque gains

it was the only filter type that was able to offer adequate filtration to the engine

4 (E39) 97 thru 2000BMW 740i 4

Please watch our video on how to fit an air filter without damaging it

Inside Diameter: 60mm ID Length: 300mm Spring Rate: 130 N/mm or 743 lbs/inch

The 2 rear-facing bolts (into the sub-frame) are 15 Ft*Lbs

Less is more:

Unitronic Direct Fit B8/8

and the tips are designed to perfectly fill out the factory valance

More on AWE 180 Technology® in the tab above

The springs are made of high tensile chrome silicon and each unit is shot peened