Understanding the Cosworth Turbo Kit for the Infiniti Q60

The Infiniti Q60, particularly the Red Sport 400 variant, already offers impressive twin-turbocharged power from its VR30DDTT engine. However, for enthusiasts seeking a moderate yet reliable increase, the Cosworth turbo kit delivers a targeted 60-horsepower gain. Cosworth, a name synonymous with high-performance motorsport engineering (their engines have won Formula One races and Indy 500s), has adapted its expertise into a bolt-on kit specifically for the VR30 platform. This kit typically replaces the factory turbochargers with optimized compressor wheels, revised turbine housings, and upgraded wastegate actuators. Unlike aggressive “max-effort” builds, the Cosworth kit focuses on fast spool, drivability, and thermal management while staying within safe boost limits.

The 60 hp figure is not arbitrary; it represents a modest increase that preserves factory reliability margins without requiring internal engine modifications or forced supporting fuel system upgrades. For many Q60 owners, this is the sweet spot between daily-driver civility and noticeable pull at highway speeds.

Complete Cost Breakdown

Below is a detailed line‑item breakdown of the expenses you should expect. Prices are based on 2024–2025 market averages for parts and professional installation in the United States. Actual costs will vary based on your location, shop rates, and any unforeseen vehicle-specific needs.

1. Cosworth Turbo Kit (Core Components)

$5,500 – $6,200
The kit includes the upgraded turbochargers, cast exhaust manifolds, silicone charge pipes, high‑flow intake ducts, and all necessary gaskets/hardware. Some vendors bundle a COBB Accessport or custom calibration, which may add $200–$400 to the base price. Always verify what is included in the purchase price before ordering.

2. Installation Labor

$1,200 – $1,800
Installing a turbo kit on the Q60 is labor‑intensive (12–16 hours for a competent shop). The engine bay is tight, and removing the factory turbos requires disconnecting coolant and oil lines, the intercooler, and the intake manifold. Shops specializing in Nissan/Infiniti performance often charge $120–$150 per hour. For a smooth installation, choose a shop with proven VR30 experience.

3. Professional Tuning & Calibration

$700 – $1,000
Even though the kit is “bolt‑on,” the engine management system must be recalibrated to match the new airflow, boost targets, and ignition timing. Most tuners use the COBB Accessport (or EcuTek for advanced fuel control) and perform street or dyno tuning. A dyno session with live adjustments costs around $700–$1,000. Do not skip this step — running the Cosworth kit on the factory calibration can lead to knock, overheating, or inconsistent power delivery.

$600 – $1,200
To ensure the 60‑hp gain is reliable and sustainable, these are common additions:

  • High‑Performance Intercooler – The factory unit becomes heat‑soaked under sustained boost. An uprated front‑mount intercooler adds $400–$700.
  • Oil Cooler Kit – The VR30 runs hot, especially with increased boost. A setrab‑style cooler kit: $300–$500.
  • BPR (Blow‑Plasma) Intake Valves – Optional but recommended for carbon‑clean operation if you drive short trips often.
  • Spark Plugs One Step Colder – Included in many kits, but if not, budget $80–$120.

5. Miscellaneous Expenses

$250 – $400
Includes fresh engine oil (5W‑30 synthetic), coolant, ATF if the transmission is serviced, new gaskets (if not in the kit), and shop consumables. Also plan for a dyno rental fee if not included in the tune.

6. Total Estimated Investment

$8,250 – $10,600
The sweet spot for a quality 60‑hp Cosworth setup lands around $8,500. If you opt for premium intercooler and oil cooler but skip extraneous parts, you will still be under $9,500. Budget an extra $500–$1,000 for contingencies (e.g., snapped bolts, extra tuning time, or a needed Walbro fuel pump if your car is a 2017–2018 model with the older pump).

Factors That Influence the Final Price

  • Labor Rates by Region: A high‑end shop in Los Angeles or New York may charge $180/hour, while a Midwest indie shop might be $110/hour. Get at least three quotes.
  • Vehicle Condition: If your Q60 has high miles (>60k), you may need to replace the water pump or valve cover gaskets during turbo removal — add $300–$600.
  • Smog / Emissions Requirements: Some states require CARB‑EO compliant parts. The Cosworth kit may not have a CARB number, so you might need to retain factory catalytic converters or source a custom tune that passes readiness checks.
  • Upgraded Fuel System: Although not strictly needed for 60 hp, if you plan future upgrades, installing a Stage 2 LPFP now saves labor later. Add $400.

Installation Process Overview

Professional installation typically takes one to two days. The shop will:

  1. Drain coolant and oil, remove underbody panels, and disconnect the battery.
  2. Unbolt the factory turbochargers along with the exhaust manifolds and downpipes.
  3. Inspect the oil drain lines and replace any suspect O‑rings.
  4. Bolt on the Cosworth turbo assembly with new gaskets, ensuring correct wastegate base pressure.
  5. Reconnect all plumbing, install the upgraded intercooler (if purchased), and fill with fresh fluids.
  6. Perform a boost‑leak test and check for oil/coolant leaks.
  7. Flash the tune and perform a road or dyno calibration.

DIY installation is possible for an experienced mechanic, but you will need a lift, a full set of metric tools, and a willingness to work in tight spaces. The first‑timer will likely take 20+ hours.

The Importance of Tuning and Calibration

Tuning is not optional. The factory ECU uses closed‑loop fuel and boost logic; simply bolting on upgraded turbos without recalibration will cause the engine to run excessively rich (wasting power) or dangerously lean (potentially damaging pistons). A reputable tuner will dial in the desired 60‑hp gain while respecting knock limits. Many Cosworth kit owners prefer EcuTek’s RaceROM or COBB ProTuner. Expect the final dyno graph to show a broad torque plateau between 3,500 and 6,000 rpm rather than a peaky curve. For daily driving, this translates to effortless merging and passing.

Real‑World Performance Gains Beyond 60 HP

The 60‑hp figure is a conservative estimate from Cosworth. Many owners report gains of 70–80 whp with a full exhaust and intercooler upgrade. The torque increase is equally dramatic — often +70 lb‑ft from 3,000 rpm. This transforms the Q60 from a quick grand tourer into a genuinely aggressive performer. 0–60 mph times typically drop from 4.5 seconds to the high‑3s with proper traction. Quarter‑mile times improve by roughly 0.5–0.7 seconds, depending on conditions.

Supporting Modifications for Reliability and Safety

To ensure the added power does not shorten engine life, consider these upgrades:

  • Oil Cooling: The VR30’s twin turbos already generate significant heat. A quality oil cooler (e.g., Setrab 50‑row) maintains oil temperatures below 260°F during aggressive driving.
  • Catch Can System: The direct‑injection engine builds up carbon on intake valves; a dual‑catch‑can setup reduces oil vapor reintroduction.
  • Transmission Upgrade: The 7‑speed automatic in the Q60 can handle this power level if you do not launch repeatedly. For peace of mind, a transmission cooler (add $200) and a shift calibration (via the tune) reduce clutch slip.
  • Lower‑Temperature Thermostat (170°F): Helps maintain consistent IATs and reduces heat soak.

Comparing the Cosworth Turbo Kit to Other Power Adders

For the Q60, the main alternatives are:

  • Supercharger: Costs $7,000–$9,000 + installation, delivers instant throttle response but often less peak power per dollar. Superchargers also add weight and parasitic loss.
  • Nitrous Oxide: A 60‑hp wet shot kit costs under $1,500 but requires refills and careful tuning; not ideal for daily driving.
  • E85 Tune + Downpipes: A more affordable route (~$3,000) that can yield 50–60 hp with ethanol, but only if you have E85 availability and accept fuel system modifications.

The Cosworth turbo kit strikes a balance — it is a genuine hardware upgrade with no bottle refills or fuel‑flex limitations, and it retains OEM+ drivability.

Long‑Term Considerations and Maintenance

After installation, you should adopt a slightly more diligent maintenance schedule:

  • Oil Changes Every 3,000–4,000 miles with full synthetic 5W‑30 or 0W‑40.
  • Boost Leak Tests Annually – even minor leaks affect performance and fuel economy.
  • Spark Plug Replacement Every 30,000 miles (vs. 60,000 stock) due to increased cylinder pressure.
  • Warranty Implications: The Cosworth kit will void your factory powertrain warranty unless installed by an Infiniti dealership (unlikely). Consider a used vehicle or budget for repairs.

Resale value: A well‑documented, professionally installed kit can add $3,000–$5,000 to the car’s value if sold to an enthusiast. However, a sloppy install will hurt value.

Conclusion

Adding 60 horsepower to your Infiniti Q60 with the Cosworth turbo kit is a substantial but rewarding investment. The total outlay — hovering around $8,500 to $10,000 — buys you more than just a number; it transforms the car’s character with stronger low‑end torque, improved throttle response, and the confidence that your engine is operating with parts engineered by a motorsport icon. By carefully planning your budget, selecting an experienced installer, and investing in proper tuning and supporting cooling, you can enjoy a reliable 60‑hp increase that elevates the Q60 into serious sports coupe territory.

For further reading, explore Cosworth’s official product page here, check a detailed installation guide on MotoIQ, and browse owner experiences on the Infiniti Q60 Forum.