Hawk HP Plus Brake Pads on the Street: Is It Too Aggressive

By Core Brake Parts Tech Team — Circleville, OH warehouse

Hawk HP Plus (sold as HP+) is legal to run on the street, but for most daily drivers it is more pad than they need. Hawk sells it as a crossover street/race compound that is ideal for autocross, and its optimal temperature range starts at 300 F, while Hawk's dedicated street pads, HPS and HPS 5.0, are optimized from 100 F. If your car spends most of its life commuting, a street compound will feel better day to day; if you autocross or drive hard on weekends, HP Plus is a reasonable single pad for both.

What Hawk HP Plus Actually Is

Hawk lists HP+ pads under the product name HP+ Crossover Street/Race Brake Pads. On Hawk's motorsports page, the company describes HP+ as a Ferro-Carbon friction material developed for sport driving, with lower wear rates and higher torque values than competitive materials. The compound page sums it up with four points: low to mid temperature range, fade resistant, smooth and predictable torque, and ideal for autocross.

You can spot an HP Plus pad by the compound letter in the part number. For example, Hawk's HB145N.570 is an HP+ rear pad, with the N marking the compound and .570 listed as the thickness. Hawk lists that pad for a long run of Honda and Acura models, including Civic, Accord, S2000, RSX and Integra applications, plus some Suzuki SX4 and Kizashi models. Compare that to Hawk's street chart, where HPS is compound F and HPS 5.0 is compound B. Always check that letter, because the same pad shape is often sold in several compounds.

The Real Question: Temperature

Whether a pad is too aggressive for the street has less to do with how hard it grabs and more to do with where it works best. Every friction compound has a temperature window. Below it, the pad is not at its best; inside it, you get the bite and consistency it was designed for. Hawk publishes these windows, which makes the comparison straightforward.

Two numbers stand out. First, HP+ has the highest operating ceiling of the four at 800 F, which is why it holds up at autocross and spirited track-style use. Second, its optimal range does not begin until 300 F. The street compounds are all optimized starting at 100 F. That means a car driven gently around town, where the brakes rarely get hot, keeps HP+ below its sweet spot much of the time. It still stops the car, since Hawk rates its operating range down to 100 F, but you are not using the pad the way it was designed to be used.

What HP Plus Feels Like on a Daily Driver

Pedal and bite

Hawk describes HP+ torque as smooth and predictable, so it is not a grabby on-off pad. Where drivers notice a difference is in consistency: the pad is built to come alive as it heats up, so a cold first stop in the morning and a hot stop at the end of a mountain road can feel different. Street compounds optimized from 100 F feel more uniform across normal driving.

Noise and dust

Hawk does not publish noise or dust claims for HP+. It does for its street pads: HPS is described as producing less dust than standard pads, and Performance Ceramic as extremely quiet with ultra-low dust. If quiet, clean wheels are a priority, those are the compounds Hawk itself positions for it. Hawk's FAQ notes that correct installation, machined rotors and anti-squeal lube on the pad backing all help reduce squeal with any of its pads.

Rotor and pad wear

Hawk says HP+ has lower wear rates than competitive materials in its class. That is a comparison to other sport and crossover pads, not to a mild street compound. For a commuter, the more relevant point is that any higher-temperature compound running below its optimal range is not working at its best, so there is little benefit to paying for that heat capacity if you never use it.

Who Should Run HP Plus on the Street

• Autocross drivers who drive to the event: This is exactly the use Hawk names. One set of pads for the commute and the course saves swapping pads in the paddock.
• Weekend canyon or back-road drivers: Repeated hard stops push brakes into the upper temperature ranges where HP+ is designed to live.
• Sport compacts driven hard: Hawk offers HP+ for a wide range of cars, including many Honda and Acura models such as the Civic, S2000 and RSX.

Who should skip it:

• Commuters and highway drivers: HPS or HPS 5.0 is optimized from 100 F, which matches everyday brake temperatures much better.
• Anyone who prioritizes quiet and clean wheels: Look at a ceramic street pad instead. Browse our ceramic brake pads for low-dust options.
• Cars with carbon ceramic rotors: Hawk states none of its compounds are compatible with carbon ceramic rotors; they are designed for iron or metal rotors only.
• Dedicated track cars: Hawk sells separate race compounds, such as its DTC series, for sustained track use.

Not sure what fits your car? Start with our brake pads for your vehicle and confirm the exact front and rear part numbers before ordering.

Installing HP Plus the Right Way

A crossover compound makes rotor condition even more important. Measure your rotors against the minimum thickness cast or stamped on them, and replace rotors that are under spec, heat-checked or deeply grooved. New brake rotors give fresh pads a flat surface to bed against. Hawk's FAQ also recommends machining rotors at installation to help prevent squeal. Replace tired clips and slide pins with a brake hardware kit, and check that caliper slides move freely so the pads wear evenly.

For street pads, Hawk's published bed-in procedure is:

1. Make 6 to 10 stops from approximately 30 to 35 mph using moderate pressure.
2. Make 2 to 3 hard stops from approximately 40 to 45 mph.
3. Do not drag the brakes.
4. Allow 15 minutes for the brake system to cool down.

Torque caliper and bracket bolts to your factory service manual values, pump the pedal before driving, and check fluid condition. A higher-temperature pad pushes more heat into the caliper and fluid, so old, moisture-contaminated fluid is worth flushing using the fluid type printed on your master cylinder cap.

Frequently Asked Questions

Is Hawk HP Plus street legal?

Hawk sells HP+ as a crossover street/race pad, and its product pages list it under street use. It is intended for cars that are driven on the road and also used for autocross.

Will HP Plus pads work when cold?

Yes. Hawk rates the operating range from 100 F to 800 F. The optimal range is 300 F to 600 F, so the pad performs at its best once warmed up rather than on the first cold stop.

Is HP Plus better than HPS 5.0 for the street?

For daily driving, HPS 5.0 is the better match because its optimal range starts at 100 F. HP Plus makes more sense if you also autocross or regularly get the brakes hot.

How do I tell HP Plus from HPS in a part number?

Look at the letter before the decimal. N is HP+, F is HPS, B is HPS 5.0 and Z is Performance Ceramic. HB145N.570, for example, is an HP+ pad.

Can I run HP Plus on the front and a street pad on the rear?

Mixing compounds changes front-to-rear brake balance and can change how ABS and stability control behave. Use the same compound at both ends unless your pad maker lists a specific combination for your car.

Do HP Plus pads work with carbon ceramic rotors?

No. Hawk states that none of its compounds are compatible with carbon ceramic rotors and that its pads are designed for iron or metal rotors.

Sources

1. Hawk Performance - HP+ - 300-600 F optimal and 100-800 F operating range, ideal for autocross, carbon ceramic incompatibility
2. Hawk Performance - HB145N.570 - HP+ Crossover Street/Race product name, N compound letter, .570 thickness, Honda/Acura/Suzuki fitment
3. Hawk Performance - Motorsports - HP+ Ferro-Carbon material, lower wear and higher torque claims, DTC race compounds
4. Hawk Performance - Street Compounds - HPS, HPS 5.0 and Performance Ceramic codes and temperature ranges, dust and noise claims
5. Hawk Performance - How To - street pad bed-in procedure
6. Hawk Performance - FAQs - machining rotors and anti-squeal lube to reduce noise