JBA Shorty Exhaust Headers 1-1/2" Stainless Steel Silver Ceramic 4.6L F-150 2004-2008

Race-proven technology found in the JBA Silver Ceramic Stainless Steel 1-1/2" Shorty Exhaust Headers 1687SJS maximize exhaust flow and increase horsepower. Improve the throttle response in your 2004-2008 4.6L F-150 with the mandrel-bent stainless steel primary tubes with extra thick collector domes and a proprietary Firecone collector.

Features and Benefits:
- Mandrel-bent stainless steel primary tubes
- Best flow, durability, improved throttle response
- Proprietary JBA Firecone collector
- Race proven technology for maximum hp/tq gains
- Factory style emission connections
- Extra thick collector domes
- 3/8 thick machined flanges
- Resists warping, prevents leaks
- Oversized exhaust ports
- Increased flow, accommodates cylinder head porting