BMW E30 StopTech Big Brake Kits

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New! Turner Championship Edition Calipers! Call us for information!

Modern stock brake systems, for the most part, work well for a single 60-0 or 80-0 stop, and average daily street driving. The typical performance enthusiast will quickly push the stock brake system beyond its capabilities. Driving style and other performance modifications such as increased horsepower, tire and suspension upgrades quickly add up to overpowering stock brakes. A big brake kit will provide increased heat capacity, which means substantially more resistance to brake fade and caliper distortion with multiple stops from high speed. A firmer pedal due to stronger and stiffer components, as well as better modulation characteristics under threshold braking are also typical

with a properly balanced brake upgrade. As a direct result their basic brake research StopTech has been granted 2 patents in basic brake technology and has 2 patents pending. StopTech is the only brake upgrade company offering balanced brake upgrades compatible with the stock OE rear brakes. StopTech's ST-40 4-piston calipers are manufactured using a squeeze-forged process at Sanyco, a 34-year old company that is CNS, QS 9000, and ISO 9002 certified. StopTech Brake Kits are race tested on the track using accurate state of the art instruments to measure stopping distances and deceleration.
Click here for StopTech FAQ's.
Click here for the BMW & MINI Wheel Fitment Chart.

Available for the following BMWs: (click icon to change BMW)

StopTech Front Big Brake Kit - E30 M3 (more info)
Position: Front
Caliper: 4-piston ST40
Colors: black, red, silver, custom (call)
Rotors: 328x28mm, cross-drilled or slotted
Also Included: stainless steel brake lines, StopTech Street Performance pads, hardware, Motul RBF600 fluid

Race Technology Used By Turner Motorsport

StopTech Brakes puts championship-winning race technology and state-of-the-art engineering under your feet. StopTech's Front Big Brake Kit for the E30 M3 is a model-specific brake upgrade engineered to work with the stock brake hydraulics and ABS/DSC system. StopTech builds each kit around the specific vehicle, engineering the system to achieve the correct brake balance. This brake upgrade gives better stopping performance in everyday driving, aggressive street driving, or all-out track days. By increasing the rotor size, using a larger pad, and a fixed forged aluminum caliper, you can improve your braking performance substantially for any condition! StopTech Brakes have been used on Turner Motorsport racecars since 2003, winning 5 sports car championships and recording numerous race wins since.

Safety Improvements from A Big Brake Kit:
+ Caliper design improves brake application and increases torque - braking is stronger meaning shorter stopping distances and faster response
+ Vehicle-specific design - improves brake feel with a firmer pedal
+ Larger and thicker rotors - less fade and longer pad and rotor life

Advantages of a StopTech Big Brake Kit:
+ extremely strong caliper and mounting system - reduces flex and deflection, improving torque application to the disc
+ Several color options available
+ Vehicle-specific calipers that maintain correct brake proportioning and balance
+ AeroRotor patented vaning for superior air flow
+ Cross-Drilled for street use or Gas-Slotted for street or track use
+ Billet aluminum mounting hats for superior strength over steel
+ DOT-compliant stainless steel brake lines
+ Street Performance brake pads that work on both street and light track use

Maximizing brake efficiency by braking with all four wheels... Sounds obvious right? Many bolt-on caliper upgrades and other big brake kits are not built with the specific vehicle's dynamics in mind. With too much braking force on the front, rear traction is compromised. And vice-versa. Brake traction is better when all four tires are doing the work. Most BMWs have 50-50 weight distribution so the correct braking proportioning is crucial! StopTech engineers each kit around that vehicle's dynamics by altering the size and number of pistons in the caliper to match the rotor size used in the kit. Bigger is not always better...

Big brake kits have larger components than the factory brakes. For the E30 M3, 17" wheels are required but some wheel designs and sizes may not clear without wheel spacers. StopTech has produced a template that has all of the critical dimensions of this brake kit. You can download and print it here and then check the clearance on your wheels. You can download and print it here and then check the clearance on your wheels.

Brake FAQs

Brake Pad Buying Guide

Brake Rotor Buying Guide

StopTech E30M3 Brake Kit Applications:
1987-1992 E30 M3, including Euro and Evo models

We will meet or beat any advertised price for StopTech Big Brake Kits! Call or e-mail us with the published pricing that you found and we will do our best to not only match that price but actually beat it!

Part #: 83.163.4300

Price: $1,995.00 (USD)