Porsche Boxster Upgrade Parts: A Practical Guide to Enhancing Your 986, 987, 981, or 718

If you own a Porsche Boxster, you already know it delivers a thrilling driving experience. But like any sports car, there's room to make it faster, sharper, and more personal. Whether you're looking for more power, better handling, a louder exhaust, or a visual refresh, the aftermarket offers a wide range of Boxster upgrade parts. This guide covers the most effective categories of upgrades for the 986, 987, 981, and 718 generations, helping you choose the right parts based on your goals and budget.

Performance Upgrades: Unlocking More Power

For many Boxster owners, the first upgrade is increasing horsepower and torque. The engine possibilities depend on which generation you have: the 986 (1997–2004), 987 (2005–2012), 981 (2013–2016), or 718 (2017–present).

Intake and Exhaust Systems

A cold air intake and a cat-back exhaust are popular starting points. On the 986 and early 987, a quality intake from brands like K&N or BMC can free up a few horsepower and improve throttle response. For the 981 and 718, aftermarket intakes are more limited but still offer small gains. A cat-back exhaust not only adds power (usually 5–10 hp) but transforms the sound. For a deeper, more aggressive note, consider systems from Carnewal, Fabspeed, or AWE Tuning. Make sure to check local noise regulations if you track the car.

Software Tuning

ECU tuning is one of the best bangs for the buck. On the 987.2 and 981, companies like Cobb Tuning offer accessport tuners that allow custom maps. For the 718, which uses turbocharged engines, a stage 1 tune can add 30–50 hp. Popular tuners include APR, GIAC, and Softronic. Tuning does not require any hardware changes, but you should use high-octane fuel and monitor engine health.

Forced Induction for 986 and 987

If you own a 986 or early 987, supercharger kits are available from companies like TPC Racing and VF-Engineering. These kits can push horsepower to 350–400, but they are expensive and require professional installation. For most drivers, a less invasive option like a cat-back exhaust and tune provides a satisfying power increase without the complexity.

Suspension and Handling: Sharper Cornering

The Boxster’s mid-engine layout already offers excellent balance, but upgrading suspension components can reduce body roll, improve turn-in, and provide more feedback.

Coilover Kits

Coilovers allow you to lower the car and adjust ride height, damping, and sometimes camber. Popular choices include KW Variant 1, 2, and 3, Ohlins Road & Track, and Bilstein PSS9/PSS10. For street use, KW V1 or Bilstein B16 are comfortable yet capable. For track-focused drivers, Ohlins offer superior damping control. Expect to spend between $1,500 and $3,500 for a quality set.

Sway Bars

Adding thicker sway bars (anti-roll bars) reduces body lean without sacrificing ride quality. Companies like H&R, Eibach, and Tarett Engineering make bars for all Boxster generations. A common setup is a 27mm front and 27mm rear bar from H&R. For the 987 and later, Tarett’s adjustable drop links allow fine-tuning.

Bushings and Alignment

Polyurethane or solid bushings from Powerflex, Tarrett, or Rennline tighten up the chassis, especially on older 986 models. A proper alignment with more negative camber (e.g., -2.0° front, -2.5° rear) can dramatically improve turn-in grip. Many shops can set this up with stock components, but adjustable control arms from Tarrett or Rennline make camber adjustment easier.

Brake Upgrades: Stopping Power Matters

If you are adding power or tracking the car, upgraded brakes are essential.

Pads and Rotors

Start with high-performance pads and slotted rotors. For street and occasional track, EBC Yellowstuff pads with EBC Sport Rotors are a good choice. For heavy track use, Pagid RSL29 or Carbotech XP10 pads offer fade resistance. Do not use race-only pads on the street—they can be noisy and require heat to work properly.

Big Brake Kits (BBK)

If you want more stopping force and better heat management, a big brake kit from Brembo, StopTech, or Tarrett provides larger calipers and rotors. For the 986 and 987, a common upgrade is installing 996 Turbo calipers (which bolt on with minimal modification). The 981 and 718 can use GT4 brakes or aftermarket kits. A BBK can cost $2,000–$5,000 but transforms braking confidence.

Exhaust and Sound: Make It Sing

Many Boxster owners upgrade the exhaust for a more exciting soundtrack. Options range from a simple muffler delete to a full system.

Cat-Back vs. Axle-Back

A cat-back system replaces everything from the catalytic converters back. Axle-back changes only the mufflers. For the most dramatic sound, a cat-back system is better. Popular brands include Soul Performance (great for 981 and 718), Fabspeed, and Carnewal. For the 718, be aware that the turbo engine sounds different—some prefer a valved exhaust to control noise.

Headers and High-Flow Cats

On naturally aspirated engines, headers and high-flow catalytic converters add both power and sound. For the 987 and 981, a header system from Fabspeed or Cargraphic can add 10–15 hp. For the 718, downpipes are the equivalent, and a tune is recommended to avoid check engine lights.

Interior Upgrades: Driver-Focused Comfort

While performance is key, the interior can be improved for daily enjoyment.

Steering Wheel and Shifter

Replace the stock wheel with a smaller, thicker one from Sparco or a custom Porsche unit from Rennline or Suncoast. A short shifter kit from Numeric or CARGRAPHIC reduces throw and gives a more mechanical feel. For the 986 and 987, a GT3 style gear knob is a popular aesthetic upgrade.

Seats

If you track your Boxster, aftermarket seats (e.g., Recaro Pole Position, Sparco Ergo) offer better support. For street use, OEM Sports Seats are a good upgrade from standard seats. You can also add seat back or center console storage from Stickerfab or Rennline.

Technology: Audio and Navigation

Older Boxsters lack modern connectivity. You can replace the stereo with an aftermarket unit from Kenwood, Alpine, or Sony that supports Apple CarPlay and Android Auto. Companies like Crutchfield provide installation kits. For a more OEM+ feel, consider a Dynavin unit (specific to Porsche) that retains the factory look.

Exterior Styling: Aggressive Looks

Visual upgrades can make your Boxster stand out. Keep in mind that many aesthetic parts also serve aerodynamic purposes.

Front Lips and Rear Spoilers

A front lip spoiler from GT-Technik, Rennline, or Suncoast reduces lift and gives a lower stance. For the rear, a GT3-style wing or a ducktail spoiler (e.g., from CARDI) can improve downforce at high speeds. On the 718, the factory aerodynamics are already good, but a subtle lip adds flair.

Wheels

Lightweight wheels reduce unsprung mass and improve acceleration, braking, and handling. Popular choices include OZ Racing, BBS, and APEX. For a budget option, look at used Porsche 911 wheels (e.g., 997 Carrera) that fit with adapters. Ensure proper offset and hub bore—check with a specialist.

Lighting

Upgrade headlights to LED or HID projectors—especially on the 986, which has dated reflectors. Brands like DEPO or Morimoto offer direct-fit units. Tail lights with LED strips from Spyder Auto or VLAND modernize the rear.

Final Recommendation: Start with the Fundamentals

When choosing parts for your Porsche Boxster, prioritize upgrades that align with how you drive the car. For most owners, the best order is:

• Exhaust and tune for a more engaging driving experience (around $1,000–$2,500).
• Suspension (coilovers or sway bars) to sharpen handling ($1,500–$3,000).
• Brake pads and rotors if you push the car hard ($500–$1,000).
• Wheels and tires as a long-term investment ($2,000–$4,000).

Avoid buying parts that exceed your skill level or intended use—a full track suspension is overkill for a daily driver. Also, check compatibility with your specific generation and engine. Many parts from 987.1 do not fit 987.2 because of changes in electronics or geometry.

Finally, work with reputable suppliers like Suncoast Porsche Parts, Pelican Parts, or FCP Euro. They offer technical support and return policies. If you are uncomfortable with installation, budget for a professional shop—especially for tuning and suspension work. With the right combination of parts, your Boxster will feel more responsive, sound better, and corner like a true sports car should.