Best 5.7 Hemi Upgrades Reviewed: Our Top 5 Picks

The 5.7L HEMI engine is a legendary powerhouse, known for its robust performance and distinctive rumble in a wide range of Dodge, Ram, Chrysler, and Jeep vehicles. From the Ram 1500 to the Challenger, Charger, and Grand Cherokee, this V8 beast offers a fantastic foundation for enthusiasts looking to unleash even more power, improve efficiency, or simply enhance its longevity. Whether you’re chasing horsepower gains, smoother operation, or addressing common wear points like MDS lifter issues, choosing the best 5.7 Hemi upgrades can dramatically transform your driving experience. Our expert-curated list focuses on top-tier components that deliver tangible benefits, ensuring your Hemi runs stronger, lasts longer, and performs at its absolute peak. Dive in to discover the essential modifications that will redefine what your 5.7 Hemi is capable of.

Our Top 5 Best 5.7 Hemi Upgrades Reviews – Expert Tested & Recommended

Complete Buying Guide for Best 5.7 Hemi Upgrades

Upgrading your 5.7 Hemi engine can be an exciting journey, promising enhanced power, efficiency, and reliability. However, with countless options available, making informed decisions is crucial. This buying guide will walk you through the essential factors to consider, helping you select the best 5.7 Hemi upgrades that align with your goals and budget.

Essential Factors We Consider

Before diving into specific parts, it’s important to understand what you want to achieve with your 5.7 Hemi upgrades. Different modifications yield different results, and some work better in conjunction with others.

• ✓ Performance Goals: Are you looking for raw horsepower, improved throttle response, better fuel economy, increased towing capacity, or enhanced engine longevity? For maximum horsepower, you might consider camshafts, headers, or even forced induction. For efficiency and reliability, a quality ignition system, an oil catch can, or an MDS lifter kit might be higher on your list.
• ✓ Compatibility (Year/Model): The 5.7 Hemi has evolved over the years. Ensure that any upgrade you choose is specifically designed for your vehicle’s make, model, and year. For example, some MDS delete kits or camshafts might only fit specific generations of the Hemi. Always double-check part numbers and application lists.
• ✓ Installation Difficulty: Some 5.7 Hemi upgrades like spark plugs, ignition coils, or an oil catch can are relatively straightforward for a DIY enthusiast. Others, such as a complete engine overhaul kit or camshaft replacement, require specialized tools, significant mechanical expertise, and often professional installation. Be realistic about your skill level and available resources.
• ✓ Quality and Brand Reputation: Always opt for reputable brands known for their quality and performance. Cheap components can lead to premature failure and potentially damage other engine parts. Look for products with positive customer reviews and robust warranties, as seen with brands like NGK or kits with proven OEM compatibility.
• ✓ MDS System Considerations: Many 5.7 Hemi engines feature the Multi-Displacement System (MDS), which can be a source of lifter failure. If you’re experiencing issues or planning a comprehensive build, consider an MDS lifter kit replacement or a complete MDS delete. Be aware that disabling MDS can impact fuel economy and may require an ECU tune.
• ✓ Emissions and Legality: Some performance upgrades, particularly those affecting the exhaust or engine calibration, may not be street legal in all areas or might void your vehicle’s warranty. Always check local regulations before making significant modifications.
• ✓ Supporting Modifications: Aggressive 5.7 Hemi upgrades often require supporting modifications. For instance, a high-performance camshaft might necessitate stronger valve springs, a custom ECU tune, and upgraded fuel injectors to realize its full potential safely.

Budget Planning

Upgrading your 5.7 Hemi can range from a few hundred dollars to several thousands, depending on the extent of modifications. Creating a budget and prioritizing your upgrades is key to avoiding overspending or incomplete projects.

• ✓ Entry-Level (Under $500): Focus on maintenance and basic performance. This includes premium spark plugs, ignition coils, an oil catch can, or a high-flow air filter. These provide noticeable improvements in efficiency, response, and engine longevity without breaking the bank.
• ✓ Mid-Range ($500 – $2000): This budget allows for more significant power adders like a cold air intake, a performance exhaust system, or a basic ECU tune. If addressing major repairs, a comprehensive MDS lifter kit could fall into this range, especially if DIY installed.
• ✓ High-End ($2000+): At this level, you’re looking at serious performance enhancements like a performance camshaft, cylinder head upgrades, full engine rebuilds, or even entry-level supercharger kits. These modifications often require professional installation and supporting upgrades.
• ✓ Factor in Labor Costs: Unless you’re doing all the work yourself, remember to budget for professional installation. Complex installations can easily double the total cost of parts. Always get quotes from reputable shops experienced with Hemi upgrades.
• ✓ Consider Long-Term Value: While some upgrades might seem expensive upfront, they can offer long-term benefits in terms of fuel efficiency, improved reliability, and extended engine life, potentially saving you money on future repairs.

Final Thoughts

Embarking on 5.7 Hemi upgrades is a rewarding experience that can significantly enhance your vehicle. By carefully considering your goals, ensuring compatibility, choosing quality components, and planning your budget, you can transform your Hemi into the powerhouse you envision. Always prioritize engine health and reliability, as a strong foundation is key to sustainable performance gains. Don’t rush the process; thorough research and patience will lead to the most satisfying results.

Frequently Asked Questions

Q: What are the most impactful 5.7 Hemi upgrades for performance?

A: For significant performance gains, some of the most impactful 5.7 Hemi upgrades include a performance camshaft, forced induction (supercharger or turbocharger), long-tube headers with a full exhaust system, and a custom ECU tune. While these are higher-end modifications, even basic upgrades like a cold air intake and a quality ignition system (spark plugs and coils) can yield noticeable improvements in throttle response and power delivery, as seen with our Editor’s Choice GBTAD kit and NGK Iridium Spark Plugs.

Q: Do 5.7 Hemi upgrades affect reliability?

A: 5.7 Hemi upgrades can affect reliability in both positive and negative ways. Upgrades like an MDS lifter kit replacement (like our Best Choice GELUOXI kit) or an oil catch can (Product #5) are designed to improve engine reliability and longevity by addressing common failure points or preventing carbon buildup. However, aggressive performance modifications, especially those not properly installed or supported by a comprehensive tune, can potentially reduce engine lifespan. Always prioritize quality parts and professional installation for complex modifications.

Q: How do I know if my 5.7 Hemi needs an MDS lifter kit replacement?

A: Common signs that your 5.7 Hemi might need an MDS lifter kit replacement include a distinct ticking or knocking noise from the top end of the engine, especially noticeable at idle or low RPMs, cylinder misfires, a check engine light, or excessive oil consumption. These symptoms often indicate that the MDS lifters are failing. A comprehensive overhaul kit, like the GELUOXI MDS 5.7 HEMI Engine Overhaul Rebuild Kit, is designed to address these critical issues.

Q: Is an oil catch can really necessary for a 5.7 Hemi?

A: While not strictly “necessary” for the engine to run, an oil catch can is highly recommended for any 5.7 Hemi. Hemi engines, particularly those with MDS, are prone to carbon buildup on the intake valves due to the PCV system recirculating oil vapors. An oil catch can (such as the 6.4L Billet Oil Catch Can Kit with New 5.7 HEMI Z-Bracket Technology) intercepts these oil vapors, preventing carbon deposits, misfires, and ultimately prolonging engine life and maintaining optimal performance. It’s an excellent preventative measure for long-term engine health.

Q: How often should I replace spark plugs in my 5.7 Hemi?

A: For a 5.7 Hemi, it’s generally recommended to replace spark plugs every 30,000 to 100,000 miles, depending on the type of plug and driving conditions. Copper plugs typically require more frequent replacement (30k miles), while iridium plugs (like the NGK Iridium IX or those in the GBTAD Ignition Coil Pack and Iridium Spark Plug Kit) can last much longer, often up to 100,000 miles. Regular replacement ensures optimal combustion, fuel efficiency, and prevents misfires.

Q: Can I install these 5.7 Hemi upgrades myself?

A: Many 5.7 Hemi upgrades are suitable for DIY installation with basic mechanical skills and tools. Items like spark plugs, ignition coils, valve cover bolts, and oil catch cans are generally considered accessible projects. However, more complex upgrades such as a full engine overhaul kit or camshaft replacement require advanced mechanical knowledge, specialized tools, and often professional expertise to ensure correct installation and optimal performance. Always assess your skill level and comfort before attempting complex installations.

The 5.7 Hemi engine is a marvel of modern engineering, offering a fantastic blend of power and everyday usability. With the right 5.7 Hemi upgrades, you can unlock its true potential, whether that means soaring horsepower, enhanced fuel efficiency, or simply prolonging its robust life. From comprehensive engine rebuild kits to critical ignition components and preventative maintenance tools like oil catch cans, our top picks offer solutions for every need and budget. By investing in these expert-tested and recommended parts, you’re not just modifying your vehicle; you’re optimizing it for peak performance and lasting enjoyment. Don’t wait to give your Hemi the attention it deserves. Explore these upgrades today and feel the difference!