How much horsepower does a V6 IS250 have?
The Lexus IS 250's 2.5-liter V6 produces about 204 horsepower, giving the compact luxury sedan brisk acceleration while emphasizing smooth, everyday driving. In most markets and model years, peak power is rated at 204 hp, with peak torque around 185 lb-ft.
To understand how that power is delivered, where it comes from, and how it compares to related models in the IS lineup, this article breaks down the engine specs, year-to-year consistency, and what it means for real-world performance.
Engine basics
The IS 250 uses a 2.5-liter V6 designed to deliver a balance of refinement and responsive torque. It is typically paired with a six-speed automatic transmission in North American markets, with power routed to the rear wheels in most configurations. The engine is tuned to deliver peak horsepower at higher revs and peak torque around 4,000 rpm, contributing to a smooth, all-around performance profile.
Key specifications for the IS 250's V6 powerplant include the following:
- Displacement: 2.5 L
- Horsepower: 204 hp at 6,400 rpm
- Peak torque: 185 lb-ft (251 Nm) at 4,000 rpm
- Redline: typically around 6,400–6,500 rpm (varies by market and model year)
- Common transmission: 6-speed automatic in most markets
These specifications illustrate the IS 250's design focus: steady, predictable power delivery suited for daily driving and highway cruising, rather than high-end performance. For a specific vehicle, verify the power figure on the window sticker or in the owner's manual, as regional emissions tuning and model-year changes can cause minor variations.
Model-year and market context
From its introduction in 2006 through the early 2010s, the IS 250 consistently used the 2.5-liter V6 with similar power output. In most regions, the 204 hp rating remained standard, with minor variations due to emissions regulations and market-specific tuning. The IS 350, by contrast, used a larger 3.5-liter V6 with significantly more horsepower, highlighting the broader performance range within Lexus's IS lineup.
What to check when buying used
If you're shopping for a used IS 250, check the official window sticker or service records for the exact figure on that car. While 204 hp is the common rating, some markets or model years may show small variations due to tuning or regulatory differences.
Performance context and takeaway
Power is just one part of how a car feels on the road. The IS 250 balances its horsepower with a refined ride, precise handling, and Lexus's emphasis on comfort and reliability. When compared with its siblings, the IS 250's 204 hp sits below the IS 350's 306 hp, but the overall package—including weight and chassis tuning—often delivers a satisfying, confident driving experience for daily use.
Summary
The Lexus IS 250's V6 produces about 204 horsepower, with peak torque around 185 lb-ft. This power level, combined with the car's chassis and refinement, positions the IS 250 as a balanced entry in Lexus's IS lineup—adequate for everyday driving while offering a respectable level of performance for its class.
How much horsepower does a IS250 V-6 have?
The Lexus IS250's 2.5-liter V6 engine produces 204 horsepower and 185 lb-ft of torque. This power output was consistent across many model years, including 2006, 2010, 2012, 2014, and 2015.
You can watch this video to see a POV test drive of the 2015 Lexus IS 250 F Sport: 54sDhruv DrivesYouTube · Jan 29, 2025
- Horsepower: 204 hp @ 6,400 rpm
- Torque: 185 lb-ft @ 4,800 rpm
- Engine size: 2.5-liter V6
- Transmission: Paired with a 6-speed automatic or manual transmission
This video explains the features of the Lexus IS 250, including its engine: 59sDhruv DrivesYouTube · Feb 24, 2025
Is a Lexus IS250 fast?
No, the IS250 is not considered fast, but it is a responsive and capable car for daily driving. It has a 0-60 mph time of around 7.6 to 8.4 seconds, making it slower than many other luxury or performance-oriented cars on the market. The engine can feel weak under stress, like going uphill, due to a lack of low-end torque.
You can watch this video to see a test drive and performance metrics of the Lexus IS250: 59sDM Car ReviewsYouTube · Mar 15, 2024
Performance comparison
- 0-60 mph: Approximately 7.6 to 8.4 seconds.
- Engine: A 2.5-liter V6 engine with around 204 horsepower.
- Torque: Lacks significant torque, which can make it feel sluggish during acceleration or when climbing hills.
- Comparison to IS350: The more powerful {is350: IS350} model is significantly faster and is a more competitive option for those seeking higher performance.
What the IS250 is good for
- Daily driving: It is a reliable and comfortable car for everyday use.
- Handling: It has rear-wheel drive and good handling, making it enjoyable on winding roads.
- Aesthetics and build: It is a well-built, luxurious car with sharp styling.
Who it's for
- The IS250 is ideal for drivers who prioritize reliability and luxury over outright speed.
- If you want faster acceleration, consider the {is350: IS350} model or look at newer generations.
Is 250 V-6 stage 1?
Stage 1 ECU Remapping Performance Information
A Stage One ECU Remap tune up for the Lexus IS IS250 - 2.5 - 204-BHP would produce typical gains of 7.8% POWER (an extra 16bhp) as well as a 7.6% increase in Torque (+19).
Is the IS250 a V4 or V-6?
| Grade | IS250_AWD | |
|---|---|---|
| Dimensions | Wheelbase(mm) | 2730 |
| Engine | Engine code | 4GR-FSE |
| Engine type | V6-cylinder, DOHC | |
| Displacement(cm3) | 2499 |
