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StopTech Front Big Brake Kits for 2007-2009 Mazdaspeed3
Stoptech Mazdaspeed3 Upgraded Caliper Brake Kit
Stoptech Mazdaspeed3 Upgraded Caliper Brake Kit Stoptech Mazdaspeed3 Big Brake Kit gives your vehicle that modified look and feel, and exceed stock performance in two areas. First, larger rotors increase heat capacity on your MS3. Second, stiffer calipers and stainless steel lines reduce system compliance. 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.
Mazdaspeed3 Brake Kit Components:
2-Piece Floating Directional 332x32mm Aero Rotors:
The patented AeroRotor features curved vanes with innovations on leading and trailing edges. The uniquely designed vanes inside the disc optimize airflow through the rotor on your 07-09 MS3. This improved directional design minimizes turbulence and flows more air than any rotor tested. The result is up to 80% better airflow over original equipment rotors and 10-30% better airflow than directional vaned racing rotors currently available.

4-Piston Stoptech ST-40 Calipers:
Using finite element analysis (FEA) modeling software, Stoptech has designed a bolt-in bridge strong enough to stop distortion without sacrificing cooling through the top of the caliper. Distortion is virtually eliminated. The squeeze forged StopTech caliper has the least flex of any tested aftermarket and OE caliper. The air channel in the bridge is designed to help air flow through the retainer, resulting in better cooling for your Mazdaspeed Brake System

Stainless Steel Brake Lines
StopTech makes their own stainless steel MS3 brake lines in Southern California. StopTech is a DOT (U.S. Department of Transportation) registered supplier of Stainless Steel Brake Lines. Line material and fittings are all made from the highest quality parts available. Lines feature a clear abrasion-resistant cover for maximum protection against chaffing. Necessary quality control procedures are in place to ensure lines are the correct length, etc. Every fully assembled StopTech Stainless Steel Brake Line is tested to a pressure of 4,500 psi.

Caliper Mounting Brackets
StopTech's hats and brackets are made with a special type of billet aluminum that was designed for the AeroSpace industry in the United States. The German TÜV were so impressed with the durability of these parts during testing that they replicated the bracket and repeated the test with a stainless steel imitation of our part. The stainless steel version failed early. Hats and brackets are machined to ISO standards at StopTech's manufacturing facility in Torrance, California, using the latest CNC machines that feature active tooling.

StopTech Performance Brake Pads
The supplied StopTech performance street pads are an excellent choice for the daily driven MS3 or the occasional autocross, but if regular trips to autocross events or track days are in your Mazda's future, be sure to select a more appropriate pad for those events.

IMPORTANT NOTES:
1. These kits fit the 2007-2009 Mazdaspeed3 Only
2. This kit may NOT fit your wheels, you MUST measure before buying, there are no cancellation or returns on Stoptech Big Brake kits they are a special order product.
3. JSC Speed and Stoptech accept no responsibility for fitment issues related to aftermarket wheels. Before purchasing, use this Wheel Fitment Template to measure the clearance behind your rims.
4. All Stoptech kits are made to order, they can take approximately 1+ week for standard kits, 30+ days for special options such as colored calipers (Blue, Yellow, Silver, Gold, and Blue) and Drilled (as pictured above) or Zinc Rotors. You must call to order upgraded options.
5. There are no returns or cancellations on these brake kits. We urge you to call before ordering if you need these kits by a certain date.
Shipping costs are calculated upon checkout.
stoptech red st-40 red caliper big brake kit Mazdaspeed3
stoptech slotted aerorotor 332mm x 32mm
StopTech Front Big Brake Kit, Red Calipers:
Includes: 4 Piston Red Calipers, 2-Piece 332x32mm Slotted Rotors, Stainless Steel Brake Lines, & StopTech Peformance Brake Pads
Part #: 83.622.4600.71
MSRP: $2195
Our Price: $2195
Inventory: Usually ships in 1-4 weeks

stoptech red st-40 red caliper big brake kit Mazdaspeed3
stoptech slotted aerorotor 332mm x 32mm
StopTech Front Big Brake Kit, Red Calipers:
Includes: 4 Piston Red Calipers, 2-Piece 332x32mm Zinc Coated Slotted Rotors, Stainless Steel Brake Lines, & StopTech Peformance Brake Pads
Part #: 83.622.4600.73
MSRP: $2265
Our Price: $2265
Inventory: Usually ships in 1-4 weeks

stoptech black st-40 black caliper big brake kit Mazdaspeed3
stoptech slotted aerorotor 332mm x 32mm
StopTech Front Big Brake Kit, Black Calipers:
Includes: 4 Piston Black Calipers, 2-Piece 332x32mm Slotted Rotors, Stainless Steel Brake Lines, & StopTech Peformance Brake Pads
Part #: 83.622.4600.51
MSRP: $2195
Our Price: $2195
Inventory: Usually ships in 1-4 weeks

stoptech black st-40 black caliper big brake kit Mazdaspeed3
stoptech slotted aerorotor 332mm x 32mm
StopTech Front Big Brake Kit, Black Calipers:
Includes: 4 Piston Black Calipers, 2-Piece 332x32mm Zinc Coated Slotted Rotors, Stainless Steel Brake Lines, & StopTech Peformance Brake Pads
Part #: 83.622.4600.53
MSRP: $2265
Our Price: $2265
Inventory: Usually ships in 1-4 weeks

stoptech black st-40 silver caliper big brake kit Mazdaspeed3
stoptech slotted aerorotor 332mm x 32mm
StopTech Front Big Brake Kit, Silver Calipers:
Includes: 4 Piston Black Calipers, 2-Piece 332x32mm Slotted Rotors, Stainless Steel Brake Lines, & StopTech Peformance Brake Pads
Part #: 83.622.4600.51
MSRP: $2195
Our Price: $2195
Inventory: Usually ships in 1-4 weeks

stoptech black st-40 silver caliper big brake kit Mazdaspeed3
stoptech slotted aerorotor 332mm x 32mm
StopTech Front Big Brake Kit, Silver Calipers:
Includes: 4 Piston Black Calipers, 2-Piece 332x32mm Zinc Coated Slotted Rotors, Stainless Steel Brake Lines, & StopTech Peformance Brake Pads
Part #: 83.622.4600.53
MSRP: $2265
Our Price: $2265
Inventory: Usually ships in 1-4 weeks
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