Stainless Works CT14HCAT 304 SS Catted Headers for 14-18 Chevy/GMC 1500 5.3L/6

Vehicle Fitment

• 2014-2018 Chevrolet Silverado 1500 (Base, WT, LS, LT, LTZ, High Country; 5.3L/6.2L V8, 2WD/4WD)
• 2014-2018 GMC Sierra 1500 (Base, SLE, SLT, Denali; 5.3L/6.2L V8, 2WD/4WD)

Features

• 304 stainless steel long tube headers with high-flow catalytic converters
• Mandrel-bent 1-7/8" diameter primary tubes for improved flow
• 3" diameter lead pipes with slip-fit collectors
• Performance Connect configuration for exhaust system compatibility
• TIG welded construction for strength and durability
• CNC-mandrel bends for optimized exhaust scavenging
• 3/8" thick laser-cut flanges for reliable sealing
• Limited lifetime warranty on materials and workmanship

Specifications

• Header Material: 304 stainless steel
• Primary Tube OD: 1.875"
• Collector/Lead Pipe OD: 3.00"
• Connection: Performance Connect
• Crossover Style: True dual X-pipe
• Flange Thickness: 0.38" laser-cut
• Catalytic Converters: Integrated high-flow type
• Fitment: Wrangler 1500 truck 2WD and 4WD

Included Components

• 1x pair of long tube headers with high-flow catalytic converters
• 1x set of O2 sensor extension adapters
• Assorted clamps, bolts, and RTV silicone for installation

Product Description

The Stainless Works CT14HCAT long tube headers with integrated high-flow catalytic converters are a premium performance upgrade for 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks equipped with 5.3L or 6.2L V8 engines and available in both 2WD and 4WD configurations. Precision-engineered from 304 stainless steel with mandrel-bent 1-7/8" primary tubes and a true dual X-pipe design, these headers improve exhaust flow, reduce backpressure, and enhance torque and horsepower potential while providing a more aggressive exhaust note. The inclusion of high-flow cats helps maintain regulated emissions performance over restrictive factory manifolds.

Designed for use with a Stainless Works Performance Connect or compatible exhaust system, the CT14HCAT features 3" slip-fit collectors and 3/8" laser-cut flanges to ensure a solid, leak-free fit. Constructed with TIG welding and backed by a limited lifetime warranty, this exhaust header kit delivers durability for years of performance driving. Note: This product is not CARB legal for on-road use in certain states; check local regulations before installation.