How much horsepower does a twin turbo Stealth have?

The twin-turbo Stealth, a performance variant badged as VR-4 in Mitsubishi's lineup and sold in the U.S. as the Dodge Stealth, typically delivers about 300 to 320 horsepower, depending on year and market. Early models were rated around 300 hp, while later versions commonly carried a 320 hp rating.

What is the twin-turbo Stealth?

The twin-turbo Stealth refers to the high-performance variant of Mitsubishi's 3000GT platform that was marketed in North America under the Dodge Stealth name. It uses a 3.0‑liter DOHC V6 with sequential twin turbochargers and all‑wheel drive. Engine tuning, emissions rules, and market-specific badges led to modest variations in the official horsepower ratings over its production run.

Power output by year and market

The horsepower figures for the Stealth’s twin-turbo variant varied over time and by market. Below is a concise summary of the most widely cited values:

• Early US models (1991–1992): approximately 300 horsepower.


• Later US models (1993–1996): approximately 320 horsepower.

In many international markets, the twin-turbo version was rated around 320 PS (about 315–320 horsepower in common conversion to horsepower). Transmission choice and local tuning could yield small variations from these figures.

Why the numbers vary

Engine management software, intercooler efficiency, exhaust tuning, and market-specific emissions regulations contributed to differences in stated horsepower across model years and regions. As a result, enthusiasts may encounter a range rather than a single fixed number when discussing the twin-turbo Stealth’s output.

Summary

The twin-turbo Stealth generally sits in the 300–320 horsepower band, with early U.S. models around 300 hp and later ones commonly listed at 320 hp. Market and year, plus transmission and tuning, account for the typical variations you’ll see in historical spec sheets.

How much horsepower does a twin turbo give you?

A twin-turbo setup can add anywhere from 50 to over 1,000 horsepower, depending on the engine, boost level, and supporting modifications. For a typical street-driven car, you can expect an increase of 50 to 150 horsepower, while high-performance applications can see much larger gains, say, a custom engine going from 510 hp to over 1,000 hp with a twin-turbo setup and high boost.
 
This video explains how twin turbos add boost: 1mAlex LTD LXYouTube · Feb 8, 2025

• Modest gains: For many modern, smaller engines, a twin-turbo system might add 50 to 150 hp for a significant but manageable increase in performance. 
• Moderate gains: Larger engines can see a moderate increase, such as a V6 going from 230 hp to around 310 hp. 
• Significant gains: High-performance or racing applications can achieve massive gains, with some engines going from around 500 hp to well over 1,000 hp. 
• Factors influencing the gain: The exact amount of horsepower depends on several factors:
  • Boost pressure: Higher boost levels force more air into the engine, increasing potential power. 
  • Turbo size: Larger turbos can flow more air, but may also introduce more turbo lag. 
  • Engine modifications: The stock engine's components need to be able to handle the extra power. Supporting mods like fuel injectors, a new camshaft, and an upgraded cooling system are often necessary to achieve significant gains and ensure engine longevity. 
  • Engine type: The overall design, displacement, and compression ratio of the engine play a large role in how it responds to forced induction. 

You can watch this video to see the horsepower gain from a twin-turbo Mustang: 37sRacerXYouTube · Jun 11, 2021

What is the top speed of the 1995 Dodge Stealth RT twin turbo?

155 mph
While it weighed almost as much as a contemporary BMW 7-Series, the Stealth's high power and torque combined with the all-wheel drive allowed it to blast from 0-60 mph in a little over five seconds, do the quarter-mile in under 14 seconds, and go on to a limited top speed of 155 mph.

How much horsepower does a Dodge Stealth twin turbo have?

300 horsepower
1996 Dodge Stealth R/T Beyond its twin-turbocharged, intercooled V-6 making 300 horsepower and 307 pound-feet of torque—enough to propel the car to 60 mph in 5.2 seconds on its way to a 155-mph top speed—it came equipped with every awe-inspiring gizmo of the day: four-wheel drive, four-wheel steering, active ...

How much horsepower does a 1992 Dodge Stealth RT twin turbo have?

300 horsepower
The 1992 Stealth ranges in power from the Coupe 2D with 164 horsepower to the R/T Turbo Coupe 2D with 300 horsepower and a 0-60 time of 4.9 seconds.