The Best Ls1 Obx Headers of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Ls1 Obx Headers of 2023. Check our ranking below.
2,183 Reviews Scanned
- Stainless Steel Construction: Durable and heat-resistant for long-lasting performance.
- Direct Fit for LS Engines: Compatible with popular LS1, LS2, LS3, LS6, and LS engines.
- Increased Horsepower and Torque: Optimized flow design for improved engine performance.
- Bolt-On Installation: Easy to install without major modifications.
- Aggressive Exhaust Sound: Enhanced engine sound for a sportier driving experience.
- 【Compatible with】Fit for 1982-04 Chevy S10 GMC Sonoma Blazer,Works with LS1, LS2, LS6, LS7 engines,Works with 4.8L, 5.3L, 6.0L Vortec Engines.
- 【Quality materials】：CNC Machined Flanges，Seamless welding，Standard Graphite Manifold Gaskets.The exhaust manifold is forged from high quality stainless steel.Flange Thickness:3/8" (9.5mm).
- 【Improve Performance】: The inner wall is smooth, no burrs, ultrasonic cleaning, to ensure that there is no impurities inside the tube,Smooth airflow and stable performance，Can increase 10-15 horsepower.
- 【Easy to Install & Use】：The LS swap headers include exhaust manifold and mounting screws, gaskets and other accessories for easy assembly design. These headers create a reduction in cylinder backpressure and improved exhaust gas velocity, these improvements free up lost horsepower and torque.
- 【Note】:Headers are for LS series engine swaps only. These do not work on the factory engines.Please check carefully before ordering to make sure this pair of exhaust headers fit your vehicle. Please refer to a factory/manufacturer manual for installation and details. Installation is recommended to be completed by a professional mechanic.(No Instruction Included)
- OEM Part Number: 5.3/6.0 LS Exhaust Manifold Bolt is for 551696
- Fitment: 5.3/6.0 Ls Header Bolts are Compatible With GM Chevrolet Chevy LS1 LS3 LS2 LSX LT Engines; All GM LS & LT series engines 1997-up
- Material: 5.3/6.0 LS Exhaust Manifold Bolts Hardware Kit is made of premium quality steel with High Strength Grade 10.9, strong and reliable, not easy to break or deform, can be used for a long time.
- Size: Grade 10.9 Automotive Bolt, M8 x 1.25 Thread x 25 mm, Anti-Corrosion Zinc Plated.
- Easy to Install: 5.3/6.0 Ls Header Bolts are simple to use and easy to operate. It's designed for easy installation so you can quickly and easily replace your old mounting kit.
- 12PCS COMPLETE HEADER BOLT KIT. This set includes 12 premium exhaust manifold/header flange bolts with integrated flanged heads—no need for extra washers. Designed to meet JIS specifications for precise fit and secure installation.
- Compatibility: Directly replaces OEM Part Number 551696. This header bolt kit is engineered for LS Series engines, including LS1, LS2, LS3, LS6, LSX, LM7, LR4, LQ4, LQ9, L33, LH6, L92, L76, L99, L96, L82, L83, L84, L86, L87, and LT1 models.
- GRADE 10.9 HIGH-STRENGTH STEEL. Each bolt is manufactured from heavy-duty alloy steel with a Grade 10.9 rating—built to withstand extreme torque, vibration, and heat for long-lasting, secure performance.
- ADVANCED DACROMET COATING. Coated with Dacromet for superior corrosion resistance in high-moisture, salt-spray, and high-heat environments. The eco-friendly coating prevents rust without the risk of hydrogen embrittlement.
- IDEAL FOR LS SWAPS & REBUILDS. Perfect for engine swaps, performance upgrades, or replacing worn-out OEM hardware. Trusted by mechanics and DIYers for reliable exhaust manifold fastening on any LS project.
Last update on 2025-07-08 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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