Wilwood Big Brake Kit – 6-Piston Front/4-Piston Rear – Compatible with BMW E30 – 1982–1994

BMW E30 Wilwood brake kit Firstly, this Wilwood big brake kit brings a serious performance upgrade to BMW E30 owners seeking track-capable stopping power. Additionally, this kit includes four-caliper coverage with 6-piston front calipers and 4-piston rear calipers, both matched to 300mm drilled and slotted rotors. Furthermore, buyers receive braided stainless brake lines and mounting brackets included, eliminating separate sourcing for hydraulic components. Moreover, this kit suits track-day drivers, autocross competitors, and E30 owners upgrading from factory brakes that fade under sustained heavy use.

Wilwood Brake Kit Components Included in This Listing

• Two front 6-piston Wilwood calipers with drilled and slotted rotors
• Two rear 4-piston Wilwood calipers with matching drilled and slotted rotors
• Braided stainless steel brake lines for front and rear circuits
• Caliper mounting brackets sized for 300mm rotor clearance
• Original Wilwood hardware and mounting bolts included
• Consistent black caliper finish across all four corners

Why Buyers Choose This Wilwood Brake Kit for E30

Because this kit uses genuine Wilwood 6-piston and 4-piston caliper architecture, clamping force and pedal feel exceed factory E30 brake performance by a wide margin. Meanwhile, factory E30 brakes rely on smaller single-piston calipers that fade quickly under repeated hard braking. As a result, this kit delivers consistent stopping power across extended track sessions and aggressive street driving. Similarly, the drilled and slotted rotor design improves heat dissipation and reduces brake fade compared to factory solid rotors.

Brake Kit Characteristics and Performance Uses

• Genuine Wilwood 6-piston front and 4-piston rear calipers
• 300mm drilled and slotted rotors front and rear for even heat dissipation
• Braided stainless lines improve pedal feel over rubber factory lines
• Ideal for track-day builds, autocross setups, and E30 restomods
• Reduces brake fade compared to factory single-piston caliper design
• Sold as a complete four-corner kit, avoiding mismatched sourcing

Vehicle Fitment and Model Compatibility

Notably, this Wilwood brake kit fits BMW E30 chassis models produced between 1982 and 1994, including sedan, coupe, and convertible variants. Otherwise, buyers should confirm wheel clearance before ordering, since 300mm rotors and 6-piston calipers may require 17-inch or larger wheels depending on offset. Also, this kit typically bolts onto factory E30 spindles and axles using included brackets, though buyers should verify master cylinder compatibility for correct pedal feel.

Installation Notes and Component Condition

Given that this kit includes calipers, rotors, and lines together, installation typically involves mounting the bracket to the spindle, bolting the caliper in place, and connecting the braided lines before bleeding the system. Typically, calipers and rotors are inspected before listing to confirm no shipping damage or thread wear. Above all, buyers should bleed the entire system thoroughly after installation to remove trapped air before driving.

Shipping Standards and Purchase Assurance

Given the weight of a complete four-corner brake kit, components ship in secure, padded packaging to prevent rotor scratching or caliper damage in transit. Typically, buyers receive tracking confirmation promptly once the order ships. Ultimately, every component in this listing is verified against genuine Wilwood specifications, giving buyers confidence in performance before installation begins.