Best 4-Inch LS Swap Cold Air Intake Kits for Restomods
The following article highlights top 5 4-inch LS swap cold air intake kits designed for restomod serious builds. Each option emphasizes universal fit, improved airflow, and compatibility with popular LS engines (LS1/LS2/LS3, LQ4, LQ9, and more). Read on to compare features, installation notes, and performance implications for better throttle response and horsepower gains.
Buying Guide at end includes key considerations: fitment, airflow path, sensor compatibility, mounting flexibility, materials, and installation ease.
| Product | Brand | Engine Compatibility | Air Intake Diameter | Estimated Benefit |
|---|---|---|---|---|
| RiAiCiING 4” LS Swap Cold Air Intake Kit (Silver Tube) | RiAiCiING | LS1/LS2/LSX/LQ4/LQ9 etc. | 4 inch | 8-12% HP, 6-10% torque |
| LDMINDA LS Swap Cold Air Intake | LDMINDA | LS1/LS2/LS3/LQ4/LQ9, LY6 | 4 inch | Less restrictive airflow, horsepower/torque gains |
| dokoyeo 4” LS Swap Cold Air Intake Kit | dokoyeo | LS1/LS2/LSX/LQ4/LQ9 | 4 inch | Better throttle response and engine efficiency |
| Zieichy 4” LS Swap Cold Air Intake Kit | Zieichy | LS1/LS2/LS3/LQ4/LQ9 | 4 inch | Improved airflow, power output, smooth bends |
| CaBYbigG 4 Inch LS Swap Cold Air Intake | CaBYbigG | LS1/LS2/LS3/LQ4/LQ9 | 4 inch | Driver/passenger side filter options, durable build |
Note: The table above reflects the primary attributes and performance emphasis reported by product listings. Always verify fitment for your specific vehicle and engine before purchase.
RiAiCiING 4” LS Swap Cold Air Intake Kit (Silver Tube) – Universal Fit
Brand: RiAiCiING
Engine compatibility spans LS1, LS2, LSX, LQ4, LQ9, LY6, and common 4.8L/5.3L/5.7L/6.0L displacements. The design emphasizes maximum clearance between radiator and accessory pulleys and supports both Speed Density and Round MAF sensors (note: MAF requires additional couplers/clamps). Users report an 8-12% horsepower increase and a 6-10% torque gain, with improved throttle response and power delivery. The system often places the air filter on the driver side, with potential rotation to the passenger side for fitment flexibility.
LDMINDA LS Swap Cold Air Intake Kit
Brand: LDMINDA
Package includes a 4 inch red color cold air intake with all necessary hardware. It is designed to fit most LS1/LS2/LS3/LQ4/LQ9/LY6 engines and is compatible with a wide range of LS swap projects. The kit aims to reduce intake restriction by delivering cooler, denser air, thereby increasing horsepower and torque. Its universal fit and robust construction are highlighted as key selling points for restomod enthusiasts seeking noticeable performance gains.
dokoyeo 4” LS Swap Cold Air Intake Kit
Brand: dokoyeo
Fits LS1/LS2/LSX/LQ4/LQ9 and 4.8L-6.0L displacements. Designed for maximum clearance between radiator and pulleys, this kit offers flexible air filter placement (driver’s side or rotatable to passenger side) and compatibility with Speed Density and round MAF sensors. Reported benefits include improved throttle response and increased engine efficiency due to less restrictive airflow. The conical 4″ aluminum tube aims to optimize air delivery to the engine.
Zieichy 4” LS Swap Cold Air Intake Kit
Brand: Zieichy
Compatibility includes LS1/LS2/LS3/LQ4/LQ9 and 4.8L/5.3L/5.7L/6.0L engines. The kit is designed to provide a less restrictive airflow path, improving throttle response and overall power output. Notable features include a 4″ conical aluminum tube with smooth walls and precision bends to maximize clean air delivery to the engine, along with flexible air filter placement options to suit different engine bays.
CaBYbigG 4 Inch LS Swap Cold Air Intake
Brand: CaBYbigG
Designed for LS1/LS2/LS3/LQ4/LQ9/LY6 engines (4.8L-6.0L). The kit includes a 4″ black powder-coated aluminum tube. It emphasizes compatibility with a broad range of LS engines and offers a durable, corrosion-resistant build. The kit is categorized for universal swap projects and emphasizes smooth, unrestricted airflow to boost throttle response and engine efficiency.
ATLBALA 4” LS Swap Cold Air Intake Kit
Brand: ATLBALA
Universal fitment across LS1/LS2/LSX/LQ4/LQ9/LY6 and 4.8L-6.0L engines. The kit supports both driver and passenger side intake placement and is engineered to maximize clearance between the radiator and accessory pulleys. It features a durable 4” CNC-bent aluminum tube for smoother airflow, plus a powder-coated finish for longevity. The setup is compatible with Speed Density and round MAF sensors where applicable.
Buying Guide
Key considerations when shopping for a 4-inch LS swap cold air intake kit:
- Fitment and engine compatibility: Ensure the kit supports your engine family (LS1/LS2/LS3, LQ4, LQ9, LY6, etc.) and your vehicle layout.
- Airflow path and sensor compatibility: Look for a design that minimizes intake restrictions while supporting Speed Density and round MAF sensors if needed. Check whether additional couplers or clamps are required.
- Mounting and clearance: A kit should maximize clearance between the radiator and pulleys and offer flexible air filter placement to suit the engine bay.
- Tubing diameter and material: A 4″ tube with smooth walls aids flow; aluminum tubes are common for durability and heat resistance.
- Filter quality and placement: Driver-side placement is common; verify whether the setup allows rotation to the passenger side if needed for fitment.
- Construction and finish: Powder-coated or corrosion-resistant finishes help long-term durability in varied climates.
- Ease of installation: Consider included hardware and whether professional installation is advisable for your specific vehicle.
- Performance expectations: Real-world gains vary; manufacturers typically suggest horsepower and torque improvements, but these depend on vehicle condition and tuning.
From a performance perspective, these kits are designed to reduce intake restriction and facilitate greater air delivery to the engine, contributing to crisper throttle response and improved power delivery. For restorations or restomods, choose a kit that aligns with your preferred filter placement, sensor setup, and overall engine bay aesthetics. Always confirm compatibility with your vehicle and consult installation guides or a qualified technician if uncertain.