Unlock the Power Inside Your LS-Based Engine With These Nine Tips
The LSx engine is a popular choice among car enthusiasts due to its potential for high horsepower gains. It is also sought after due to the ease of installing the best LSx engine modifications. This includes motors such as the LS1 in the 90s Chevy Camaro or the LS6 from the ZO6 Corvette. By adding a few specific power-adders, you can further boost the performance of this already impressive engine.

One of the most popular upgrades for the LSx is a cold air intake from brands like K&N or SLP. This modification increases the amount of air that enters the engine, resulting in improved horsepower and torque. Another popular option is a performance exhaust system from brands like Borla or Magnaflow, which can add up to 15 horsepower and give your LSx a deep, aggressive tone.
RELATED: Top 10 Fastest Pontiacs Of All Time
To further increase power, a high-flow throttle body from brands like BBK or Accufab is a great option. This modification allows more air to enter the engine, resulting in improved acceleration and power. A performance camshaft from brands like Comp Cams or Texas Speed can also make a big difference, especially when combined with other upgrades.

To keep your LSx running smoothly and reliably at higher horsepower levels, consider upgrading your fuel system with components from brands like DeatschWerks or Aeromotive. This can include larger fuel injectors, a high-flow fuel pump, and a fuel pressure regulator.

Finally, a good tune from brands like HP Tuners or Diablosport is crucial to optimizing your LSx’s performance with all of these modifications. A professional tune can also increase horsepower by adjusting timing and fuel curves to maximize power output.
With these specific LSx engine modifications, you can take your LSx engine to the next level and achieve impressive horsepower gains while maintaining reliability and performance.

Best LSx Engine Modifications Top Nine Checklist
- Upgrade the air intake system with a high-performance cold air intake from brands like K&N, SLP or Volant.
- Install a set of long tube headers from companies like Kooks or American Racing Headers to increase exhaust flow.
- Upgrade the exhaust system with a high-flow cat-back exhaust system from brands like Borla, Corsa or Magnaflow.
- Install a high-performance camshaft from companies like Texas Speed or Comp Cams to improve valve lift and duration.
- Upgrade the fuel system with a larger fuel pump, injectors, and fuel pressure regulator from companies like DeatschWerks or Aeromotive.
- Add a performance throttle body from companies like BBK or FAST to increase airflow to the engine.
- Install a high-performance intake manifold from companies like Holley or FAST to improve airflow and increase horsepower.
- Upgrade the ignition system with performance spark plugs and ignition coils from companies like NGK or MSD.
- Add a high-performance engine tune from a reputable tuner like Texas Speed or Black Bear Performance to optimize the engine’s performance.

Want to stay quick off the line? Check out our top tire picks for your classic Muscle Car Here!
Note To Reader: Car Nut Chronicles is reader supported. We may post content which contains links to affiliate sites such as Amazon where we may earn a small commission. This helps us keep the lights on and the articles you enjoy being produced. Thank you for your readership, we appreciate you!

The Ultimate Chevy 6-Lug Wheel Fitment Guide: Pro Tips for 2026
Silverado, Tahoe, Suburban & More – Expert Specs, Offsets, Compatibility Fellow gearheads, if you’re anything like me at CarNutChronicles.com, you’ve…
Best OBD2 Scanner for Classic and Muscle Cars 2026 Review: Expert Picks That Actually Work on Your Iron
Fellow gearheads, if you’re anything like me at CarNutChronicles.com, you’ve got grease under your fingernails and a soft spot for…
Ford F-150 5.0 Coyote Oil Change DIY with Service Reset: Complete 2026 Guide
By Jay Altman, CarNutChronicles.com | Expert Truck Maintenance Series Published: April 2026 | Updated for 14th-Generation Ford F-150 (2021–2026 Models)…
Dodge Ram SRT-10 with a Viper Engine Are Now Less Than a New Ford Maverick
There are so many practical and efficient small pickup trucks on the market these days, such as the Ford Maverick. Yet, there stands the Dodge Ram SRT-10, a remnant from the long lost era where raw power and amazing street presence reigned supreme. This behemoth of a muscle truck represents…
An Eye For Detail: How to Transform Your Car into a Work of Art
Elevating Your Vehicle to a Masterpiece Though this Ultimate Guide To Automotive Detailing Car detailing is an art form that transforms vehicles into works of art. It’s not just about cleaning a car; it’s about enhancing its appearance and preserving its value. Detailing involves a meticulous process of cleaning, restoring,…
2024 Jeep Gladiator: Ignites The Awesome Fire It Needed
The 2024 Jeep Gladiator: A Fresh Look and Enhanced Features In the ever-evolving world of off-road vehicles, Jeep continues to set the standard with the refreshed 2024 Jeep Gladiator. This rugged pickup not only undergoes a visual transformation with a striking new grille but also introduces exciting trims and features,…
Best Ways to Store a Truck Topper: Secure & Space-Saving Methods
Storing a truck topper, also known as a truck cap or camper shell, is essential for preserving its condition, preventing damage, and extending its lifespan. These versatile additions offer extra security, storage space, and even potential fuel efficiency gains when mounted on your pickup. But when not in use, their…
EVs Plunge In Value: Study Uncovers Cars with Best Resale
Electric Cars Plummet In Value While Trucks And Hybrids Demonstrate Remarkable Resilience In a groundbreaking study conducted by iSeeCars, the depreciation rates of over 1.1 million vehicles sold between November 2022 and October 2023 were analyzed, revealing significant insights into the automotive market’s resale value landscape. The study delves into…
Best Mitsubishi 3000gt Vr4 Features: A Comprehensive Guide
A Look Back On The Mitsubishi 3000gt Vr4 And The Guide You Have Been Waiting For The Mitsubishi 3000GT VR4 is a sports car that was produced from 1990 to 2001. It was a popular model among car enthusiasts due to its sleek design and impressive performance capabilities. The VR4…

