Hawk HB181F.660 HPS Front Brake Pads BMW E31 840Ci/850Ci Ferrari 550 Maserati

Vehicle Fitment

• 1994-1997 BMW 840Ci (4.4L V8, RWD) - E31
• 1994-1997 BMW 850Ci (5.0L M70 V12 / 5.4L M73 V12, RWD) - E31
• 1997-2002 Ferrari 550 Maranello (5.5L F133 V12, RWD)
• 2000-2002 Ferrari 550 Barchetta Pininfarina (5.5L F133 V12, RWD)
• 1993-1999 Lamborghini Diablo VT (5.7L V12, AWD)
• 1995-1999 Lamborghini Diablo SV (5.7L V12, RWD)
• 1995-1999 Lamborghini Diablo VT Roadster (5.7L V12, AWD)
• 1998-2002 Maserati 3200 GT (3.2L Twin Turbo V8, RWD)
• 2002-2007 Maserati 4200 GT (4.2L V8, RWD)
• 2001-2007 Maserati 4200 Spyder (4.2L V8, RWD)
• 2004-2007 Maserati GranSport (4.2L V8, RWD)
• 2007-2019 Maserati GranTurismo (4.2L V8, RWD)
• 1994-2001 Maserati Quattroporte 4th Gen (2.8L / 3.2L Twin Turbo V8, RWD)
• 2003-2012 Maserati Quattroporte 5th Gen (4.2L V8, RWD)

Fitment Notes

• Front axle application only - FMSI D639.
• Not compatible with carbon ceramic rotors; designed for iron/metal rotors only.
• Compatible with stock, slotted, and cross-drilled rotors.
• No shims, hardware, or electronic wear sensor included.
• Pad wear sensors from OEM pads will not transfer to these pads.

Features

• HPS Ferro-Carbon compound delivers 20-40% more stopping power than standard OEM pads.
• Higher coefficient of friction than stock for improved brake response and confidence.
• Fade resistant across a wide street-use temperature range for consistent pedal feel.
• Virtually noise-free operation with low dust output for clean wheels and quiet daily driving.
• Gentle on rotors - extends rotor service life compared to more aggressive compounds.
• Extended pad life suitable for long-term street and spirited driving use.
• Friction technology derived from aerospace and motorsport severe-duty applications.
• Integrally molded construction - no shim delamination or rattle concerns.

Specifications

• Part Number: HB181F.660
• Compound: HPS - High Performance Street (F)
• FMSI ID: D639
• Pad Thickness: 0.660 in.
• Position: Front
• Material: Ferro-Carbon
• Operating Temperature Range: 100-700°F
• Optimal Temperature Range: 100-500°F
• Construction: Integrally molded without shims
• Electronic Wear Sensor: No
• Hardware Included: No

Included Components

• 2x HPS Brake Pads (Front Axle Set - Driver and Passenger Side)

Product Description

The Hawk HB181F.660 HPS front brake pads are engineered for a wide range of high-performance European grand tourers and exotics sharing the FMSI D639 caliper, including the BMW E31 8 Series, Ferrari 550 Maranello, Lamborghini Diablo, and multiple generations of Maserati. Built with Hawk's proven Ferro-Carbon HPS compound, these pads offer a meaningful upgrade over factory friction materials, delivering 20-40% more stopping power with improved fade resistance and a more confident pedal feel - all while remaining quiet and low-dust for daily or spirited street use.

These pads are an ideal choice for owners of classic Italian exotics and BMW grand tourers who want better braking performance without the harshness, noise, or rotor wear of a track-oriented compound. The HPS compound is effective from cold temperatures and performs consistently across the full range of street driving conditions. A proper bed-in procedure is recommended after installation to maximize friction film transfer and ensure optimal braking performance from the first drive.