How much horsepower does a stock Lexus IS 350 have?

The stock Lexus IS 350 currently makes 311 horsepower.

Across its model history, power has varied slightly by generation, with early IS 350s rated around 306 hp and later models at 311 hp. This article breaks down how horsepower has evolved across generations and what buyers should expect from a factory-spec IS 350 today.

Horsepower by generation

The following bullet points summarize the factory horsepower for each IS 350 generation and major updates.

• First generation (2006–2013): 306 hp, 268 lb-ft of torque. The 3.5-liter V6 used in this era was rated at about 306 hp (SAE net) with torque around 268 lb-ft.


• Second generation (2014–2019/2020): 311 hp, 277 lb-ft of torque. A revised 3.5-liter V6 (2GR-FKS) delivered a modest power bump to 311 hp.


• Third generation (2020–present): 311 hp, 280 lb-ft of torque. The latest IS 350 continues the 311-horsepower rating, with torque tuned to about 280 lb-ft.

Notes: horsepower figures refer to SAE net horsepower in the U.S. market; torque figures can vary slightly by trim and transmission, but the peak horsepower has generally remained 306 hp for early models and 311 hp for later generations. The IS 350’s horsepower rating does not change with most trims, though torque and drivetrain configurations can affect overall performance.

In practical terms, the IS 350 has offered a stable horsepower figure around 311 hp since the mid-2010s, with the most noticeable differences coming from torque output and weight rather than peak horsepower alone.

Summary

Across its generations, the Lexus IS 350’s factory horsepower has shifted from 306 hp in the first generation (2006–2013) to 311 hp in the later generations (2014–present). The latest models carry 311 hp with about 280 lb-ft of torque, providing similar straight-line performance across recent years. When evaluating a used IS 350, verify the model year to confirm the exact horsepower and torque specs for that vehicle.

How many horsepower is a Lexus IS 350?

The Lexus IS350 has 311 horsepower. This is from a 3.5L V6 engine that also produces 280 pound-feet of torque. 
You can watch this video to learn more about the IS350's engine, horsepower, and torque: 57sGold PonyYouTube · Feb 10, 2025

• Horsepower: 311311311 hp
• Engine: 3.53.53.5L naturally aspirated V6
• Torque: 280280280 lb-ft @ 4,8004 comma 8004,800 rpm
• Acceleration: 000 to 606060 mph in around 5.45.45.4 to 5.75.75.7 seconds 

This video shows the acceleration of the IS350 F Sport: 55sHow To Car Guy (HowToCarGuy)YouTube · Jun 14, 2025

IS 350 AWD 0 to 60?

The 0-60 mph time for a Lexus IS 350 with All-Wheel Drive (AWD) is approximately 5.7 seconds. This is slightly slower than the Rear-Wheel Drive (RWD) version, which typically achieves a 0-60 mph time of around 5.6 seconds. 
You can watch this video to see a 0-60 mph test of a Lexus IS 350 F SPORT AWD: 44sDM Car ReviewsYouTube · Jun 25, 2025

• 0-60 mph: ~5.7 seconds (AWD)
• 0-60 mph: ~5.6 seconds (RWD)
• Engine: 3.5L V6
• Horsepower: 311 hp
• Torque: 280 lb-ft 

What's faster, IS 350 or IS 300?

The IS350 is faster than the IS300 due to its more powerful engine. The IS350 has a V6 engine that produces 311 horsepower, while the IS300 has a turbocharged 4-cylinder or a detuned V6 depending on the model, both of which have less horsepower. This power difference leads to quicker acceleration, with the IS350 achieving a 0-60 mph time of around 5.6 seconds compared to the IS300's 6.1 seconds for the AWD model. 
This video compares the acceleration of the IS350 and IS300: 48sBen HardyYouTube · Jan 9, 2023
Performance comparison

• Engine:
  • IS350: 3.5-liter V6 engine with 311 horsepower. 
  • IS300:
    • AWD models: A detuned version of the 3.5-liter V6 with 260 horsepower. 
    • RWD models: 2.0-liter turbocharged 4-cylinder engine with 241 horsepower. 
• 0-60 mph Acceleration:
  • IS350: Approximately 5.6 seconds for AWD and RWD models. 
  • IS300: Approximately 6.1 seconds for the AWD model. 
• Torque:
  • The IS350 has more torque, which allows it to accelerate more quickly without needing to downshift as often. 

Which one should you choose?

• Choose the IS350 if: You want the best performance and a more spirited driving experience.
• Consider the IS300 if: You need a more budget-friendly option and your primary use is commuting or city driving, where the power difference may be less noticeable. 

Is the Lexus IS350 a fast car?

The Lexus IS 350 F Sport can go 0 to 60 in just 5.6 seconds for the RWD model, and slightly slower for the AWD option. Both versions can reach 143 MPH before being electronically limited. That makes the vehicle fast enough for sports sedan enthusiasts, while still being enjoyable for daily driving.