aFe Twisted Steel Headers (48-38029-T) deliver +6 HP and +7 lb-ft gains for 2011–2021 Jeep Grand Cherokee 5.7L with durable 304 stainless construction. Designed for strength, flow, and a precise fit, this system uses 1-5/8 inch mandrel-bent 304 stainless steel tubing and factory-style flanges for leak-free performance. The titanium ceramic coating enhances heat resistance and durability, while 100% MIG-welded joints ensure long-term reliability. These headers install directly in the stock locations without cutting or modifications and are engineered using CAD technology for a custom high-tolerance fit. Made in the USA, these headers are built for performance and engineered for hassle-free installation.
Key Features :
Gains of up to +6 HP and +7 lb-ft torque on dyno testing
Constructed from 1-5/8 inch mandrel-bent 304 stainless steel tubing
Laser-cut and machined flanges provide a secure, leak-free seal
Direct bolt-on fit with no cutting or modifications required
High-temperature titanium ceramic coating for heat protection
100% MIG-welded for race-proven durability
Engineered using advanced CAD for precise OEM-style fitment
Technical Notes
Not CARB exempt. Not for sale or use in California or on vehicles registered with the California Department of Motor Vehicles.
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