How to Increase the Performance of Your Mitsubishi Engine

Table of Contents

How to Tune Out the Performance of Your Mitsubishi Engine

Unlock more horsepower, speed, and efficiency with proven upgrades and high-performance Mitsubishi engines for sale, featuring specs and expert tips. How to Increase the Performance of Your Mitsubishi Engine

Introduction

Mitsubishi cars—be it a tough Pajero, a stylish Lancer Evolution, or a nimble Mirage—are renowned for their engineering compromise between performance and durability. But for tuners and enthusiasts, out-of-the-box performance may not be sufficient. For pursuing lap times, increased torque for off-road, or simply a more vibrant daily commute, you’ll have numerous methods to enhance your Mitsubishi engine’s performance.

In this book, we’ll guide you through how to increase your Mitsubishi’s horsepower with known-performance upgrades, tuning advice, and best-of-the-line replacement or performance-upgraded Mitsubishi engines for sale. We’ll cover everything from basic bolt-ons to complete engine swaps, as well as provide detailed specifications for top Mitsubishi performance engines so you can purchase and assemble with confidence.

1. Know Your Engine Platform

Before you undertake any upgrades, it’s useful to know what Mitsubishi engine you’re working with. Engines vary with how they take to tuning and upgrades.

Mitsubishi Engine Platforms Popular:

Engine Code	Type	Displacement	Turbo	Stock HP	Common Use
4G63T	Inline-4 DOHC Turbo	2.0L	Yes	250–280 hp	Lancer Evo I–IX
4B11T	Inline-4 DOHC Turbo MIVEC	2.0L	Yes	280–300 hp	Lancer Evo X
6G72	V6 SOHC/DOHC	3.0L	Yes/No	160–320 hp	3000GT, Pajero
4N15	Inline-4 Turbo Diesel	2.4L	Yes	178 hp	Triton, Pajero Sport
4A91	Inline-4 MIVEC	1.5L	No	109–115 hp	Mirage, Colt

✅ We offer high-quality rebuilt and performance-ready versions of these engines for sale—fully tested, low-mileage, and upgrade-ready.

2. Start with the Basics: Intake and Exhaust Upgrades

Cold Air Intake (CAI)

Replacing the stock airbox with a cold air intake takes colder, denser air into the motor. This simple upgrade improves combustion, throttle response, and maximum power.

Average Gain: 5–15 hp
Best On: 4G63T, 4B11T, 6G72 engines

Performance Exhaust Systems

A high-flow exhaust system reduces backpressure and allows your engine to breathe easier. Cat-back or turbo-back systems especially benefit turbocharged Mitsubishi engines.

Typical Gain: 10–20 hp
Recommended Brands: HKS, Greddy, Megan Racing

3. ECU Tuning – Unlock Your Engine’s Potential

Your Mitsubishi’s ECU (Engine Control Unit) controls fuel maps, ignition timing, boost levels, and more. Tuning this software can significantly increase power, especially with other bolt-ons installed.

Flash Tuning

Modify factory ECU with new parameters
Supports intake, exhaust, and turbo upgrades
Ideal for: Lancer Evolution, Eclipse GSX, Galant VR-4

Standalone ECUs

Full control over engine management
Best suited for: Race builds, engine swaps
Brands: Haltech, AEM, LinkECU

💡 Pro Tip: All performance engines that we sell can be paired with a compatible ECU or wiring harness. Let us know about plug-and-play kits.

4. Turbocharger Upgrades – Significant Power Gains

If your Mitsubishi is turbocharged (e.g., the 4G63T or 4B11T), a turbo upgrade can bring huge power gains. If your vehicle is not turbocharged, consider a turbo engine swap.

Stock Turbo Upgrade

Upgrade to a bigger or ball-bearing turbo for quicker spool and increased boost.

Example: Stock 4G63T turbo (~14 psi) → 20G or TD05H (~25+ psi)
Power Potential: 400+ hp with supporting modifications

Intercooler Upgrades

Reduce heat soak and boost stability
FMIC kits for most Evo platforms

🔥 Ask about fully assembled turbocharged Mitsubishi engines for sale—ideal for drop-in swaps.

5. Fuel System Upgrades

More horsepower equals more fuel. Replacing your fuel pump, fuel pressure regulator, and injectors will provide your engine with the proper amount of fuel.

Fuel System Mods

Injectors: 750cc+ for 350+ hp builds
Fuel Pumps: Walbro 255, AEM 340
Fuel Rails: High-flow rails for smooth distribution

✅ These are upgrades required to run high-performance Mitsubishi engines—what we sell with support mods already completed.

6. Internal Engine Builds – Built for Boost

Larger-horsepower plans require stronger internals. Most Mitsubishi engines, including the 4G63T, have decent stock internals—but forged pistons and rods will future-proof your engine.

Internal Modifications

Forged Pistons & Rods – For use over 400 hp
Metal Head Gaskets – Prevent blowouts on high boost
ARP Head Studs – For better clamping pressure

💥 We sell Mitsubishi crate engines with already installed forged internals ready to handle boost.

7. Performance Engine Swaps – Go Big or Go Home

If your current engine is weak or non-turbo, a changeover to a performance Mitsubishi engine is generally less expensive than its replacement by a weak base motor.

Hot Mitsubishi Engine Swaps:

From	To	Gains
4A91 (1.5L NA)	4G63T	+100–200 hp
6G72 NA	6G72 Twin-Turbo	+150 hp
4B11 NA	4B11T (Evo X)	+120–150 hp
4N13 Diesel	4N15 Turbo Diesel	+50+ hp & torque

🚗 Buy our Mitsubishi swap-ready engines for sale—with ECU, harness, mounts, and more.

8. Transmission and Drivetrain Upgrades

Upgrading your engine? Don’t leave your gearbox and drivetrain bits behind.

Most Important Upgrades

Clutch Kit: Stage 2+ for over 300 hp
Limited-Slip Differential (LSD): Improved traction
Transmission Upgrade: Evo 5-speed and 6-speed trans

🛠️ We also carry Evo transmissions and AWD conversion kits that are compatible with our Mitsubishi engines.

9. Cooling System Upgrades

More heat is generated by performance engines. Cooling upgrades protect your investment.

Essential Cooling Mods

Aluminum Radiators
High-CFM Electric Fans
Oil Coolers
Coolant Hoses & Thermostats

❄️ We offer Mitsubishi performance cooling packages to complement our engine builds.

10. Light-Weight Parts & Tuning Accessories

Eliminate parasitic loss and improve throttle response with light-weight components.

Examples

Light-Weight Flywheels – Increased revs, quicker shifts
Underdrive Pulleys – Less accessory drag
Aftermarket Camshafts – More power band tuning

🔧 Ask us about our performance engine kits with cams, pulleys, and timing pieces.

11. Proven Performance Packages by Engine

To make it simpler for you to choose the ideal setup, we’ve assembled Mitsubishi engine performance packages with suggested upgrades.

🔧 4G63T Street Performance Package

20G Turbo Upgrade
FMIC Kit
750cc Injectors
Walbro 255 Pump
Tuned ECU
Target: 350–400 hp

🔧 4B11T Track Setup

GTX3076R Turbo
Forged Internals
1000cc Injectors
Built 6-Speed Gearbox
Target: 450–500+ hp

🔧 6G72 Twin Turbo Restoration Kit

DOHC TT Engine
Turbo Rebuild
Timing Belt Kit
Full Gasket Set
ECU & Harness
Target: 300+ hp

📦 All as complete engine packages—ready to ship!

12. Why Buy a Performance Mitsubishi Engine from Us?

We are experts in high-performance Mitsubishi engines—rebuilt, tuned, and ready to install.

✅ What We Offer

Crate Mitsubishi Engines – New builds, zero mileage
Rebuilt JDM Engines – Low-mileage, dyno-tested
Engine Swap Kits – Accessories included
Performance Parts – Turbo kits, cams, clutches, ECUs

🔧 Every engine is warranty backed, cleaned, and tested. Regardless of what you’re modifying, a race Evo or street-driven Outlander, we have the perfect engine for your use.

13. Shipping & Support

Nationwide and international shipping with full support:

Fast Freight Shipping
Tech Support Hotline
Installation Help
Warranty Options

🚛 We’re not a parts provider—we’re your Mitsubishi performance partner.

Conclusion – Power Up Your Mitsubishi Today

From simple bolt-ons to full engine swaps, the options are limitless when you’re looking to increase your Mitsubishi’s performance. The secret lies in matching what you’re trying to do with the right upgrades and tried-and-true parts—and that’s where we come in.

Whether you’re looking for 500 hp in your Evo or want to find a new turbo diesel for your Pajero Sport, we’ve got the performance-documented Mitsubishi engines for sale available to make your project a success.

🚀 Upgrade Ready?

Check out our full line of Mitsubishi performance engines today or give us a call for a custom build quote.

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