Brembo 08-13 M3/11-12 1M Front GT BBK 6 Piston Cast 365x34 2pc Rotor Slotted Type1-Black

Brembo GT 1N2.8505A1 Front Big Brake Kit — BMW M3 E90/E92/E93 & 1M E82 | 365x34mm | 6-Piston Black Monobloc | Slotted

Name: Brembo GT 1N2.8505A1 Front Big Brake Kit — BMW M3 E90/E92/E93 & 1M E82 | 365x34mm | 6-Piston Black Monobloc | Slotted - Wyld Performance
SKU: brb1N2.8505A1
Price: 4795.00 USD
Availability: InStock

SKU: brb1N2.8505A1

$4,795.00

In stock

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Brembo GT 6-Piston Front Big Brake Kit w/ 2-Piece Slotted Rotors | BMW E9X M3 & 1M Coupe

If you track your E9X M3 or 1M Coupe or push it hard on backroads, the stock single-piston front brakes quickly show their limits. The factory sliding calipers trap intense heat, which quickly boils the brake fluid, makes your pedal feel soft, and stretches your stopping distances out coming into corners. The Brembo GT Front Big Brake Kit (Part Number: 1N2.8505A1) replaces those weak factory components with heavy-duty 6-piston aluminum monoblock calipers and massive 365x34mm 2-piece floating slotted rotors. This setup stops the brake fade entirely, giving you predictable, firm stopping power on every single lap.The 6-piston setup clamps the brake pads perfectly flat against the rotor face. Working alongside Brembo's Type-1 slot design, it constantly vents away gas, brake dust, and road water. This mechanical self-cleaning means you get a sharp, immediate pedal bite the exact moment you drop your foot onto the brakes. The calipers are finished in a tough gloss black coating with the white Brembo logo, completely filling out the space behind your wheel spokes.

Features and Benefits

Solid Monoblock Calipers: Cast out of high-grade aluminum as a single solid piece so the caliper body cannot flex or twist under heavy track pressure. This keeps your brake pedal feeling tight and communicative.
2-Piece Floating Discs (365x34mm): The lightweight aluminum center hat is pinned loosely to the outer iron brake ring. This lets the iron ring expand freely as it gets hot, preventing the warping and cracking you get with 1-piece stock rotors.
Type-1 Slotted Face: The machined slot lines shave off burnt pad glaze and clear away moisture on every rotation, maintaining a high-grip surface even during back-to-back hard slowdowns.
Saves Unsprung Weight: Even though these calipers and rotors are much wider and thicker than the stock parts, the 2-piece design keeps front axle weight down so your suspension stays nimble.
Full Direct Bolt-On Kit: Arrives with braided stainless steel brake lines, custom mounting brackets for your specific spindles, and performance street/track pads already loaded into the calipers.

Vehicle Fitment Matrix

This Brembo GT front axle kit bolts directly onto the front spindles of these specific BMW models:

Year Range	Make	Model	Chassis / Engine Notes
2008–2013	BMW	M3	E90 Sedan / E92 Coupe / E93 Convertible (4.0L S65 V8 Only)
2011–2012	BMW	1M Coupe	E82 Chassis (3.0L N54 Twin-Turbo Inline-6 Only)

Wheel Clearance Warning: This kit uses large 6-piston calipers and thick 365mm rotors, making wheel clearance very tight. Most factory OEM 18-inch wheels (like Style 260M or 219M) and tight-barrel aftermarket wheels will scrape against the caliper body. You will need to run hub-centric wheel spacers or change over to high-clearance 19-inch wheels. Print out the official Brembo 1:1 clearance template and check your actual wheels before ordering.

Technical Specifications

Part Number: 1N2.8505A1
Caliper Type: 6-Piston Fixed Radial Mount Monoblock
Caliper Finish: High-Gloss Heat-Resistant Black Paint with Brembo Script
Rotor Dimensions: 365mm Outer Diameter × 34mm Thickness
Rotor Style: 2-Piece Vented Disc with Type-1 Slotted Pattern
Axle Application: Front Axle Only (Includes Complete Left and Right Setups)

Frequently Asked Questions (FAQ)

Will this 6-piston kit make my brake pedal feel soft or mushy?

No. A common issue with generic brake upgrades is that the stock master cylinder cannot move enough fluid for the larger calipers, causing long pedal travel. Brembo designs these 6 internal pistons to match the exact fluid volume displacement of the stock BMW M3 and 1M master cylinders, so your pedal stays firm and immediate.

Does this kit come with all the pads and lines I need?

Yes, it is a complete front swap package. It includes custom steel caliper mounting brackets, performance street/track pads pre-loaded into the calipers, and heavy-duty stainless steel braided brake hoses to replace the soft factory rubber lines that expand when hot.

Can I keep using my stock BMW 18-inch wheels over these brakes?

It is highly unlikely. While a few aftermarket 18-inch track wheels have wide barrels built to clear big brakes, the standard factory BMW 18-inch wheels will rub against the outer edge of the caliper body. Upgrading to a 19-inch wheel configuration is the safest route for clearance.

What is the correct way to bed in these new rotors and pads?

To get a clean layer of pad material onto the iron rotor and prevent brake shudder later, you must bed them in right after installing:

Go to a safe, open road where you can drive without interruption.
Slow down firmly from 60 mph to 10 mph 10 to 12 times in a row. Press the pedal hard, but do not slam it enough to trigger the ABS.
Important: Never come to a dead stop while the brakes are hot during this cycle, or the pads will leave an uneven imprint on the rotor face, causing permanent vibrations.
Drive for 5 to 10 minutes at cruising speed without using the brakes to let the whole system cool down in the wind.

⚠️ Important: The Brembo calipers may be larger than stock — you may need a larger wheel for proper clearances. Please verify wheel clearance before purchasing using the Brembo wheel clearance guide. Due to the custom nature of this product, it is NON-RETURNABLE once installed.

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Brembo GT 1N2.8505A1 Front Big Brake Kit — BMW M3 E90/E92/E93 & 1M E82 | 365x34mm | 6-Piston Black Monobloc | Slotted