JBA 1687S 1-1/2" Shorty Exhaust Headers Natural Stainless Steel Cat4Ward

The JBA 1687S is a Cat4Ward shorty performance exhaust header built from raw 409 stainless steel with 1-1/2" mandrel-bent primary tubes. Designed as a direct-fit replacement for the factory exhaust manifolds, these headers offer a meaningful power and efficiency upgrade over restrictive OEM hardware while retaining full emissions compliance. This set holds a California Air Resources Board (CARB) Executive Order exemption, making it 50-state legal when installed per the manufacturer's application guide.

Key Features:

• Mandrel-bent 409 stainless steel primary tubes — 1-1/2" diameter for optimized exhaust flow, durability, and improved throttle response
• Proprietary JBA Firecone collector — race-proven design that maximizes exhaust gas velocity for peak horsepower and torque gains
• Extra thick collector domes — resists distortion under heat and pressure, preventing leaks over the long term
• 3/8" thick CNC-machined header flanges — oversized exhaust ports accommodate cylinder head porting; resists warping and ensures a tight, leak-free seal
• Factory-style emission connections — retains factory catalytic converters for legal street use and simpler installation
• Complete hardware kit included — header flange gaskets, collector bolts with nuts, and header fasteners with lock washers for a professional no-leak installation
• Natural stainless finish — also available with optional silver ceramic or titanium ceramic coatings for added corrosion protection and a thermal barrier
• CARB EO Exemption: D-57-48 — 50-state legal

The kit includes one driver-side header assembly, one passenger-side header assembly, one CARB EO sticker, two header flange gaskets, four collector bolts with nuts, and sixteen header fasteners with lock washers. The JBA 1687S is a direct-fit Cat4Ward shorty header that bolts into the factory location with no cutting or welding required. UPC: 694342526252.