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BMW Slotted Brake Rotors & Discs

Developed from years of racing and tracking the E36 and E46, these gas-slotted rotors provide a crucial oulet path for gas. This gas can build up between the pad and the rotor surface, resulting in a slight delay when pressing your foot on the pedal. These are a direct-replacement rotor, in the same dimensions as the stock rotors, and built to an exclusive Turner Motorsport design. Anti-corrosion paint is applied to the rotor hat and the vane area to prevent rust.
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Gas-Slotted Brake Rotors (Pair) - Rear - E46 M3, E39 M5
StopTech - Corporate Logo
T#:4203
Part#: 34212229379GS
In Stock
$202.50
Free Shipping
$202.50
Free Shipping
Direct replacement REAR gas-slotted brake discs for E46 M3. These rotors feature a unique black electro-coating that is designed to prevent corrosion. Each rotor is e-coated then double-ground and balanced to ensure an even surface with no vibration. The e-coating is the best anti-corrosion protection currently available in replacement rotors. Most aftermarket rotors are not coated, allowing surface rust to form right away, which is unattractive when brakes can be seen through your wheels.

Slotting a rotor helps to release gases that build up between the rotor surface and an out-gassing brake pad. Without an escape, this thin layer of gas will cause a delay until the pad cuts through gas layer. The slots in our rotors allow the gases to escape giving better braking performance. For track and racing use, slotting is preferred over cross-drilling because the slots don't take away as much mass from the rotor and won't suffer from structural cracks.

Sold as a REAR pair.

This item fits the following BMWs:
2001-2006 E46 BMW M3
1999-2003 E39 BMW M5
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ECS V4 Slotted Brake Rotor Pair - Rear (312x20) - E36 Z3
ECS - Corporate Logo
T#:586518
Part#: 025997ECS0134KT
In Stock
$223.90
$223.90
ECS V4 Brake Rotors are Electrostatic Coated to prevent rust more effectively than the typical phosphate finishes used by other manufacturers. Oftentimes these phosphate coatings are only preventative during shipping and storage, resulting in immediate visible corrosion once exposed to heat and moisture on your vehicle. ECS's Electrostatic Coating is tested to endure 400 hours of salt spray exposure without rusting to save you the headache that comes from both the unappealing aesthetic of rusty rotors and associated run out issues. ECS V4 Rotors have a fully machined finish to promote superior rotor balance and to give your car an attractive rotor that peeks out from behind your beloved wheels. ECS's V4 Rotors are designed to have a double disc ground, taper free finish - this prevents run out through guaranteed parallelism and accurate disc thickness variation (DTV). This process prevents the finish from being directional, facilitating a more effective pad and rotor break-in period, along with smooth, silent stopping power for the life of the rotors. ECS V4 Slotted rotors will give your car track appeal, complimenting the rest of your wheel and suspension setup. Designed to prevent brake dust and debris buildup from inhibiting performance, slotted rotors give you a more consistent brake feel. ECS carefully controls the cooling rate during the manufacturing process to ensure that their slotted rotors meet or exceed tensile strength requirements. ECS Tuning's V4 Slotted Rotors are designed independently for the left and right side of your vehicle. Features: ​Electrostatic Rust-Inhibiting Coating Fully Machined Finish Surface Roughness production standard: RMS = 64.3, Ra = 1.6 micrometers Individually inspected for balance, and mill corrected Symmetric, OE Style Vane Casting Engineered to meet all OE specs, along with QS and ISO Quality System Standards
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Turner Motorsport Rear TrackSport Rotor Set - 350x24mm - E9X M3
Turner Motorsport - Corporate Logo
T#:600082
Part#: 025518TMS02AKT
In Stock
Sale - Save 5% $987.95
$938.55
Sale - Save 5% $987.95
$938.55
When considering a brake rotor upgrade, it's important to factor in their specific use. On the road, a solid rotor is a simple, yet cheap and effective solution that is perfectly capable of handling daily-driver requirements. When you start taking your BMW to the track, things become a little more complicated. Extended periods of aggressive driving causes the amount of heat in the rotors to build up, and as the temperature of the rotors increase, the metal begins to expand. With solid rotors, this can lead to numerous issues such as warping of the rotors, unexpected cracking along the inner "ring" or friction surfaces, and increased brake fade. This is where Two-Piece Floating rotors start to shine. Two-Piece rotors were designed specifically for high-performance applications and are significantly more resistant to the effects of heat and friction, lessening the negative effects typically seen with standard rotors. The separation of the friction disk and the rotor hat allows for the rotor ring to expand and helps prevent heat from traveling into other sensitive braking components that could be damaged from prolonged exposure to harsh conditions. Needless to say, we aren't a fan of our track days being cut short due to braking issues, so we decided to create our very own performance-oriented TrackSport Rotors! Our TrackSport rotors feature a full floating two-piece design and slotted grooves to allow smooth, consistent braking force and easy expulsion of gases and dust created by the brake pads and rotors under heavy braking. This means that no matter the conditions, you can expect the braking feel to remain consistent, even throughout long periods of abuse. Features & Specifications: OE Fitment and Installation Two-Piece Fully Floating Design Heat-treated rotor rings for extended life and reduced wear Factory-applied coating prevents rust and corrosion Lightweight design eliminates excess rotational mass Slotted grooves expel brake dust and gases Internal vanes increase cooling and braking performance
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Gas-Slotted Brake Rotors (Pair) - Rear - E30 M3
StopTech - Corporate Logo
T#:3075
Part#: 34212225507GS
In Stock
$147.28
Free Shipping on orders $49 and up
Direct replacement REAR gas-slotted brake discs for E30 M3. These rotors feature a unique black electro-coating that is designed to prevent corrosion. Each rotor is e-coated then double-ground and balanced to ensure an even surface with no vibration. The e-coating is the best anti-corrosion protection currently available in replacement rotors. Most aftermarket rotors are not coated, allowing surface rust to form right away, which is unattractive when brakes can be seen through your wheels.

Slotting a rotor helps to release gases that build up between the rotor surface and an out-gassing brake pad. Without an escape, this thin layer of gas will cause a delay until the pad cuts through gas layer. The slots in our rotors allow the gases to escape giving better braking performance. For track and racing use, slotting is preferred over cross-drilling because the slots don't take away as much mass from the rotor and won't suffer from structural cracks.

Sold as a REAR pair.

This item fits the following BMWs:
1988-1991 E30 BMW M3
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Turner Motorsport Front TrackSport Rotor Set - 360x30mm - E9X M3, E82 1 M
Turner Motorsport - Corporate Logo
T#:600081
Part#: 025518TMS01AKT
In Stock
Sale - Save 5% $987.95
$938.55
Sale - Save 5% $987.95
$938.55
When considering a brake rotor upgrade, it's important to factor in their specific use. On the road, a solid rotor is a simple, yet cheap and effective solution that is perfectly capable of handling daily-driver requirements. When you start taking your BMW to the track, things become a little more complicated. Extended periods of aggressive driving causes the amount of heat in the rotors to build up, and as the temperature of the rotors increase, the metal begins to expand. With solid rotors, this can lead to numerous issues such as warping of the rotors, unexpected cracking along the inner "ring" or friction surfaces, and increased brake fade. This is where Two-Piece Floating rotors start to shine. Two-Piece rotors were designed specifically for high-performance applications and are significantly more resistant to the effects of heat and friction, lessening the negative effects typically seen with standard rotors. The separation of the friction disk and the rotor hat allows for the rotor ring to expand and helps prevent heat from traveling into other sensitive braking components that could be damaged from prolonged exposure to harsh conditions. Needless to say, we aren't a fan of our track days being cut short due to braking issues, so we decided to create our very own performance-oriented TrackSport Rotors! Our TrackSport rotors feature a full floating two-piece design and slotted grooves to allow smooth, consistent braking force and easy expulsion of gases and dust created by the brake pads and rotors under heavy braking. This means that no matter the conditions, you can expect the braking feel to remain consistent, even throughout long periods of abuse. Features & Specifications: OE Fitment and Installation Two-Piece Fully Floating Design Heat-treated rotor rings for extended life and reduced wear Factory-applied coating prevents rust and corrosion Lightweight design eliminates excess rotational mass Slotted grooves expel brake dust and gases Internal vanes increase cooling and braking performance
Show More Show Less
ECS V4 Slotted Brake Rotor Pair - Front (315x28) - E36 M3, Z3 M
ECS - Corporate Logo
T#:586526
Part#: 025997ECS0133KT
In Stock
$223.90