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)…
1961 Mercedes-Benz 300SL Roadster
Currently Listed at Mecum Auctions >>> In the realm of automotive legends, few names resonate as harmoniously as Mercedes-Benz, and among its illustrious lineup, the 1961 300SL Roadster stands as a beacon of sophistication and engineering prowess. We have written on Mercedes-Benz before, but this is something special. With only…
2025 Mercedes-AMG GT63 SE: Remarkable Vibrant Hybrid Worth A Look
Key Takeaways The 2025 Mercedes-AMG GT63 SE Performance sets a new standard in hybrid luxury sports cars with a blindingly fast 0 to 60 mph time. Advanced performance features include active roll stabilization, twin-turbocharged V-8, and rear-axle steering to bolster its dynamic capabilities. Luxury meets power with an interior optioned…
Biden’s New NHTSA Policy Now Stops You From Fixing Your Own Car
When a vehicle experiences problems, the onboard diagnostics system (OBD) is the gateway for vehicle owners and independent mechanics to diagnose and fix these issues, but due to a new NHTSA policy that may change. One state has is now recognizing the importance of this access. Massachusetts has officially enacted…
Forgotten LUV: A Look Back on this Amazing Chevy Mini-Truck
Exploring the history of Chevy’s LUV, a compact truck born from GM’s 1972 stake in Isuzu. Originally conceived as a response to the escalating demand for smaller, more fuel-efficient trucks in the United States during the 1970s, the Chevy LUV, standing for “Light Utility Vehicle,” emerged as a distinctive solution….
The Best Sleeper Car Is Cheap, And It’s A Cadillac.
The Affordable Power: Cadillac’s V-Series Is The Best Sleeper Car You Never Knew You Needed Looking for a thrilling driving experience without breaking the bank? Cadillac’s V-Sport models offer an enticing solution, blending power and performance with understated elegance. By far, the best sleeper car, once hailed for their premium…
1980s Muscle Car Restoration Tips for Beginners in 2026: The Ultimate Guide to Reviving Fox Bodies, F-Bodies, and More
Hey there, fellow gearhead! If you’re reading this on CarNutChronicles.com, chances are you’ve got that itch—the one that hits when you see a clean Fox-body Mustang rumbling by or spot an IROC-Z with its signature ground effects still looking mean in 2026 traffic. The 1980s weren’t just about big hair…

