The Volvo S60 Polestar Performance Package offers a factory-backed upgrade that sharpens throttle response, adds a more aggressive exhaust note, and boosts horsepower and torque. For S60 owners who want OEM reliability combined with genuine performance gains, this package is a compelling option. This article covers everything you need to know before installing the package on your S60, including detailed installation guidance, realistic power expectations, and important considerations to ensure you get the most out of the upgrade.

What Is the Polestar Performance Package?

The Polestar Performance Package is an official Volvo accessory and software upgrade developed by Polestar, Volvo’s former motorsport partner and current performance brand. While Volvo’s top-tier “Polestar Engineered” models come with the full hardware suite from the factory, the Performance Package is designed as a retrofit for standard S60 T5 and T6 models (model years 2012–2020). It typically includes:

  • Powertrain software recalibration for the engine control unit (ECU) and transmission control unit (TCU)
  • Polestar‑branded exhaust system (sometimes optional depending on market and year) with larger tailpipes and a richer sound
  • Chassis tuning components such as firmer damper settings or updated sway bars on certain model years
  • Visual cues like Polestar badges for the grille, fenders, and trunk lid

Unlike generic aftermarket tunes, the Polestar package retains full manufacturer warranty coverage when installed by an authorized Volvo dealer. It also complies with emissions regulations in most markets, making it a worry‑free upgrade for daily drivers.

Installation Tips for the S60 Polestar Performance Package

Installation complexity varies depending on which components you are adding. The software portion is straightforward (a dealer flash), but if you also opt for the exhaust or suspension elements, mechanical work is required. Below is a comprehensive guide that covers both the software‑only and full hardware installs.

Preparation and Tools

Before you begin, verify that your S60 is compatible with the package. Use your VIN to confirm with a dealer or on Polestar’s official website. For a full installation (including exhaust and suspension), you will need:

  • Socket set (metric, 8–19 mm)
  • Torque wrench (capable of 10–100 ft‑lb)
  • Trim removal tools
  • Jack and jack stands or a lift
  • Penetrating oil (for exhaust nuts)
  • OBD‑II scanner (to verify software upload if doing DIY, though dealer flash is recommended)
  • Service manual specific to your S60’s model year

If you are only installing the software, no special tools are needed – the dealer performs the flash via Volvo’s diagnostic system. For the exhaust and suspension, allocate a full day and consider having a second set of hands.

Software Installation

The software recalibration is the heart of the power gain. It is most commonly done at a Volvo dealership, but some independent shops with the proper Volvo VIDA/DICE tooling can also perform the flash. Key steps:

  1. Battery conditioning: Ensure the battery is fully charged – a drop in voltage during flashing can corrupt the ECU. Use a battery maintainer if needed.
  2. Data backup: The dealer will read your current ECU calibration and save it before overwriting with the Polestar file.
  3. Flash process: The new calibration is uploaded. This takes about 20–30 minutes. Do not disturb the vehicle during this time (doors closed, ignition on).
  4. Verification: After flashing, the dealer runs a diagnostics check and clears any fault codes. They will also update the vehicle’s records so warranty stays intact.
  5. Road test: A brief test drive confirms that all systems (ABS, stability control, transmission) adapt correctly to the new parameters.

Note: If you are performing the flash yourself using aftermarket cloning tools, you risk bricking the ECU. For most owners, dealer installation is the safest and most reliable method.

Exhaust System Upgrade

If your Polestar package includes a performance exhaust, the swap requires lifting the vehicle and working with rust‑prone exhaust hardware. The process typically involves:

  1. Raising the car and placing it securely on jack stands.
  2. Liberally applying penetrating oil to the exhaust flange bolts and hanger clamps 30 minutes before removal.
  3. Removing the stock exhaust from the catalytic converter back. On S60 models with dual exhaust, you may need to drop the spare tire well or trim heat shields.
  4. Installing the Polestar exhaust using supplied hardware. Torque all band clamps to the manufacturer’s specification (usually 30–40 ft‑lb).
  5. Rechecking clearances around the rear bumper and suspension links – the Polestar exhaust has slightly larger tubing and different tip positioning.
  6. Lowering the car and starting the engine to check for leaks. Listen for any rattles that may indicate contact with the underbody.

After installation, the exhaust note will be deeper at idle and under throttle, but should not drone excessively on the highway.

Suspension and Chassis Adjustments

Some S60 Performance Packages include revised suspension bushings or updated damper valving (often part of the “Polestar chassis” tune). This work is more invasive than the exhaust and should be tackled by an experienced mechanic unless you have access to a spring compressor and alignment rack. Typical steps:

  • Front strut replacement – Remove the strut assembly, disassemble the spring, install the Polestar‑spec dampers (if provided), and reassemble. Use a quality spring compressor.
  • Rear damper replacement – Access from inside the trunk or under the vehicle. Most S60 models use separate spring and damper units in the rear, making the job simpler.
  • Alignment – After any suspension work, a professional four‑wheel alignment is mandatory. The Polestar package may change ride height by a few millimeters, altering camber and toe.

Expected Power Boost and Performance Gains

The most frequently asked question: “How much horsepower will I get?” The answer depends on your S60’s engine and model year. Polestar publishes conservative figures, but real‑world dyno tests confirm the gains are meaningful.

Horsepower and Torque Numbers

For a 2.0L T5 (Drive‑E) engine (2016–2020 S60), the official gain is 20–25 hp and 25–30 lb‑ft of torque. Final output typically lands around 272 hp and 303 lb‑ft (vs. stock 250 hp/280 lb‑ft). On a T6 engine (3.0L turbo inline‑6) from earlier models (2012–2015), the gain is similar – around 20 hp – bringing peak figures to approximately 325 hp from 304 hp stock.

“After installing the Polestar tune on my 2018 S60 T5, the difference in mid‑range pull was immediately noticeable. It feels like the engine has another 500 cc of displacement. On a dyno run, I measured 274 whp, which puts crank horsepower around 285 hp.” – Owner post on a Volvo enthusiast forum

These gains are achieved through optimized boost pressure, ignition timing, and fuel mapping. The transmission also receives a recalibration that shortens shift times and holds gears longer under hard acceleration.

0‑60 mph and Quarter‑Mile Improvements

Independent tests show that a Polestar‑tuned S60 T5 can shave 0.3–0.5 seconds off the 0‑60 sprint, dropping from 6.0 seconds to around 5.5–5.6 seconds. For the T6, 0‑60 times can drop from 5.5 seconds to just under 5.0 seconds. Quarter‑mile times improve proportionally, with trap speeds increasing by 2‑3 mph.

Keep in mind that ambient temperature, fuel quality, and tire condition affect real‑world results. The car will feel quicker in everyday driving thanks to the torque increase in the 2,500–4,500 rpm band.

Throttle Response and Transmission Behavior

One of the most praised aspects of the Polestar upgrade is the improved throttle response. The recalibration eliminates the hesitation that stock Volvos sometimes exhibit when you floor the accelerator from a low rpm. In Dynamic mode, the transmission downshifts more eagerly, and manual paddle shifts are executed faster. Some owners report that the car no longer hunts for gears on uphill grades – a direct result of the revised TCU logic.

Additional Benefits Beyond Horsepower

Exhaust Note

The Polestar exhaust system (when included) gives the S60 a sportier voice without being obnoxious. At idle it has a smooth burble; under full throttle it produces a deeper, more aggressive tone. The sound is still refined – it avoids the trumpeting of some aftermarket systems – and does not trigger annoyance in residential neighborhoods.

Handling and Oversteer Reduction

On S60 models that receive the chassis components, the car exhibits less body roll during cornering. The firmer dampers and revised rear sway bar help rotate the car more neutrally, reducing the understeer characteristic of front‑wheel‑drive platforms. The steering also feels more direct, with quicker turn‑in response. For daily driving, the ride remains compliant; only sharp impacts transmit a bit more harshness than the stock suspension.

Resale Value and Original Equipment Credibility

Because the Polestar Performance Package is a Volvo‑sanctioned upgrade, it can actually increase the resale value of your S60 when properly documented. Buyers searching for a sportier experience often prefer a factory‑tuned car over a modified one. The badges and trim details are subtle signals that the car has been enhanced without sacrificing reliability.

Important Considerations Before You Buy

Warranty and Insurance

When installed by a Volvo dealer, the Performance Package does not void the factory powertrain warranty. In fact, Volvo covers the additional components under the same terms. Be sure to keep the installation paperwork and update your insurance provider – some insurers offer minor discounts for manufacturer‑sourced performance upgrades because they are perceived as lower risk than aftermarket modifications.

Fuel Economy and Emissions

Fuel economy under normal driving conditions remains largely unchanged. Under enthusiastic driving, you will see about a 1–2 mpg decrease. The package is EPA‑compliant in all 50 states for model years that originally qualified. Note: if you install a downpipe or other exhaust modifications beyond the Polestar kit, you may violate emissions laws.

Cost

At the time of writing, the Polestar Performance Package for the S60 typically costs between $1,200 and $1,900 for the software flash alone. Adding the hardware (exhaust, suspension) can push the total past $3,500. Check with local dealerships for current pricing and any promotions. Compared to custom tunes from companies like Hilton Tuning or IPD, the Polestar is more expensive but offers seamless integration and warranty protection.

Compatibility Across Model Years

Not all S60 years or engine variants are eligible. Volvo introduced the package for the S60 in 2014, and it applies to T5 and T6 gasoline engines only (not T8 twin‑engine hybrids). Use the official Polestar Performance Package tool to verify your vehicle. European‑market diesel models have a separate calibration with different gains.

Comparison to Aftermarket Tunes

Aftermarket ECU tunes often deliver higher peak numbers – 40–60 hp gains are common on the T6 engine – but come with trade‑offs. Many aftermarket maps ignore safety margins, leading to higher cylinder pressures and increased risk of component fatigue. They may also require you to use premium fuel (91 octane or higher) and can cause the check engine light to illuminate if emissions monitors are suppressed.

The Polestar calibration is more conservative, but it is developed using Volvo’s full vehicle simulation and validated over thousands of miles of durability testing. If you plan to keep the car long term and value reliability over ultimate power, the Polestar package is the safer bet. For dedicated track use or drag racing, a custom tune from a reputable shop like Elevate Cars may be more appropriate.

Conclusion

The Volvo S60 Polestar Performance Package is a thoughtfully engineered upgrade that transforms the car into a more responsive and engaging machine without sacrificing daily comfort or manufacturer support. Installation is best left to professionals, especially for the software flash, to preserve warranty coverage. The power gains of 20–30 hp are modest compared to aggressive aftermarket tunes, but the overall improvement in drivability, throttle response, and sound quality makes the package a worthwhile investment for any serious S60 enthusiast. Before making a decision, confirm compatibility with your VIN and consider your long‑term ownership goals – if you want OEM‑grade refinement with a meaningful performance edge, the Polestar package delivers exactly that.