The key, however, is to increase heat capacity and reduce compliance without upsetting the stock front to rear brake torque ratio. If the brake upgrade you select adds too much front torque (as many do), you reduce your car's ability to utilize the tractive capacity of all of the tires to the maximum practical extent (even on ABS equipped cars) and you therefore create performance sacrifices. In addition, too many pistons or pistons that are too large will make the brake pedal much more difficult to modulate, which limits a driver's control of brake input on the race track.

Advantages of StopTech over other brake upgrades:

• Shorter Stopping Distances
• Better Brake Modulation
• Firmer Brake Pedal
• Less Brake Fade

Feature Benefit Summary:

• Balanced Brake Upgrades™ with optimum brake bias offer the shortest stopping distance with the best pedal feel
• Our patented AeroRotors® with the best airflow available result in better cooling, less fade and longer rotor and pad life
• The stiffest aftermarket calipers with patented bridge result in better clamping under hard braking and less pad taper
• Track testing of new applications ensures optimum performance

Quality Assurance of Parts

All parts are bench tested prior to shipment. Each caliper is 100% pressure tested to 2,500 PSI. Every brake line is 100% pressure tested to 4,500 PSI. Every assembled two-piece rotor is tested for runout. Hats and brackets are made by StopTech to exacting standards on our own CNC machines. Since StopTech has complete control over our entire design and manufacturing process, we are able to deliver completely integrated kits with a very high standard of quality.

StopTech was the first aftermarket brake upgrade company to offer Balanced Brake Upgrades and is the only company offering optimized kits for over 277 applications. To our knowledge, no other brake upgrade manufacturer takes these design and test steps.

Highly Structured Test Process of New Applications Ensures Optimum Performance

After measuring a car for physical dimensions and calculating the correct piston sizes, StopTech builds a prototype kit and takes it out to the track. StopTech first tests the stock brakes, then tests the exact same car outfitted with a newly designed StopTech Big Brake Kit. StopTech performs the following series of stops, measuring deceleration, stopping distance and rotor temperature for each stop:

1. Series of stops with increasing speed:

• 10 Stops from 60mph
• 6 Stops from 80mph
• 4 Stops from 100mph

2. 1 high speed stop with ABS disabled to see if the front or rear brakes lock up prematurely.

3. Modified J-Turn test to determine how the brakes interact with ABS and traction control. This sophisticated test is used by engineers who design ABS systems.

J-Turn test set-up:

A skid pad is laid out with cones and very carefully measured calibration points are market with dots of paint. A car is driven through the course to determine the maximum speed possible with constant radius turns. At maximum speed, the driver locks the brakes and comes to a stop. Using a computer, the delta between departure angle and intended direction is measured, taking into account car wheelbase and track. If the delta is outside a narrow range, the kit’s piston sizes must be adjusted.

Most cars require upgraded wheels to fit over a big brake kit, but some kits do fit in stock wheels. When a kit fits stock wheels, this is noted in the kit description. To view this description, click on the part number for the particular kit of interest after searching on make, year and model in our online ordering system.

General guidelines for wheel fitment are below, but more important than the diameter of the wheel is the space between the face of the caliper and the inside of the wheel spokes. Wheel width and offset have nothing to do with this clearance area. Clearance is strictly a function of the spoke design. Even is the diameter of your wheel is sufficient, we still recommend that you check fitment.