BMW E30 FRONT BBK

Light weight and more powerful than any other 4 piston caliper kit on the market ; this kit has been rigorously tested on track with stunning results.

Stock Caliper: Tech-53 = + 61% ( floating type )

Competitors 4 piston kits : Tech-53 = +45%

Mazda RX-7 FC T2 caliper and adapters: Tech-53 = + 36%

The forged billet bodied caliper delivers high-strength clamping force and positive stopping power. Four stainless steel pistons provide fully balanced pad loading, along with the corrosion resistance and thermal retardant qualities of the stainless alloy that will keep your calipers cooler and running trouble free. Calipers work perfectly with 22mm master cylinder.

Our big brake kit calipers weight in at 3.9lbs: This is a difference of close to 60%, and 70% respectively on crititical unsprung weight. The rotor assembly weighs in at 3.830kg mounted. Stock OEM E30 rotor come in at over 5.45Kg. In other words, it’s over 32% weight reduction. The rotors are directional and come in one right, and one left per set.

The kit comes with 11″ 2 piece light weight rotors. These rotors will have a rotary mass close to 32% lower than stock E30 rotors. They will use standard and widely available Wilwood 11″ lightweight rotors, that come standard plain, and have the option of either grooved, or slotted and drilled. We have spent a lot of time and effort to bring top quality engineered product. Our hats are made out of Aircraft certified 6061-T6 alloy, with a black hard anodized finish.

Two piece rotors have the following benefits:

– Lower mass / inertia : Faster braking, less fade,

– Less unsprung rotary mass: suspension components, getting less solicitation, and reducing gyroscopic precession

– Alluminum hats help in dissipating heat, much better than the cast iron OEM centers: Saving your wheel bearings from harmfull heat transfer

Brake backing plate trimming will be required. The 280mm rotors will fit 15″ diameter wheels, although it might need spacers, depending on wheel type (please confirm with template down below).

Link for PDF file for wheel clearance templates: E30 BBK Template

Print to scale on cardboard, and then cut on lines. Use the center bore spigot inside your wheel center, and sweep template on the underside of your wheel to check for proper clearance.

This kit fits all E30 rear wheel drive chassis cars : 318i(s), 320i. 323i, 325i(s). You will probably need to upgrade to a 22mm master cylinder, if you have a 325ix booster for M50, S50 swap.

2 x 4 piston Wilwood calipers, with all the necessary fasteners

2 x 11″ 2 piece light weight rotors.

2 x Caliper adapters that will bolt on to the E30 spindles. On 280mm rotor configuration.

2 x Fully custom stainless steel braided hose DOT approved, with proper length and fittings to fit the OE mounting points , and grommets, made in USA.

1 x set of Hawk brake pads.