H&R 60mm ID Single Race Spring | Length 140mm | Spring Rate 110 N/mm or 629 lbs/inchInside Diameter: 60mm ID Length: 140mm Spring Rate: 110 N mm or 629 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.

- Choose options of Brake pads above "Add to Cart" Button

Unitronic’s T6061 cast Aluminum end tanks are designed with tolerances of +/- 0

Two Piece Floating Design:

Many of the tunes available are for the 9

This is normal and not predictable from vehicle to vehicle

4 Series F33/34 12’-16’ Convertible / Grand Coupe / Wagon

Stage 1+ - 272 HP / 310 LB-TQ ( +62 HP / +103 LB-TQ )

only premium ceramic friction material is used

modular design with step-down reducer to also fit stock cat-back exhausts

(1) Water Pump w/Metal Impeller (UroParts)

for more effective and user-friendly setup changes

with high tolerance to extreme heat