JBA Cat4Ward Header for GM S-Truck 4.3L V6 (1989-1991) – 1-1/2 Inch Primary, Raw Stainless Steel

Description

Upgrade your GM S-Truck with the JBA Cat4Ward Header Part Number 1840S-3, engineered to deliver exceptional performance and durability. Crafted from mandrel-bent stainless steel, this header features 1-1/2 inch primary tubes designed to reduce exhaust flow restrictions, resulting in increased horsepower and torque for improved engine efficiency. The 3/8 inch thick machined flanges with oversized exhaust ports ensure a secure fit and optimal sealing while the proprietary JBA Firecone collector employs race-proven technology to maximize power gains across the RPM range. This system includes factory-style emission connections and high-quality hardware, enabling a professional, leak-free installation that maintains compliance with emissions standards. The JBA Cat4Ward Header is built to withstand the demands of daily driving, towing, and racing with its durable raw stainless steel construction and extra thick collector domes. Perfectly suited for 1989 to 1991 Chevrolet S10 Blazer and S10 models, it enhances exhaust flow and engine performance without sacrificing reliability. The inclusion of emission connections ensures that the upgrade remains compliant with EPA regulations, making it an ideal choice for enthusiasts seeking a high-performance, street-ready exhaust upgrade. Whether you’re looking to boost power or improve throttle response, this header provides a significant upgrade over stock manifolds, converting exhaust gases more efficiently for maximum engine output.

Features:

• 3/8 inch thick machined flanges with oversized exhaust ports for durability and seal quality

• Proprietary JBA Firecone collector maximizes power and torque output

• Factory style emission connections for seamless integration and compliance

• Mandrel bent stainless steel tubes for smooth exhaust flow

• Extra thick collector domes for enhanced durability and performance

Fitment:
Chevrolet Blazer Base 1995
Chevrolet Blazer LS 2002
Chevrolet Blazer LS 2003
Chevrolet Blazer LT 1995
Chevrolet Blazer ZR2 2003
Chevrolet S10 Baja 1991
Chevrolet S10 Base 1988
Chevrolet S10 Base 1989
Chevrolet S10 Base 1990
Chevrolet S10 Base 1991
Chevrolet S10 Base 1992
Chevrolet S10 Base 1993
Chevrolet S10 Base 1994
Chevrolet S10 Base 1995
Chevrolet S10 Base 2002
Chevrolet S10 Base 2003
Chevrolet S10 Durango 1988
Chevrolet S10 Durango 1989
Chevrolet S10 Durango 1990
Chevrolet S10 EL 1992
Chevrolet S10 EL 1993
Chevrolet S10 LS 1994
Chevrolet S10 LS 1995
Chevrolet S10 LS 2002
Chevrolet S10 LS 2003
Chevrolet S10 Sport 1988
Chevrolet S10 Sport 1989
Chevrolet S10 Tahoe 1988
Chevrolet S10 Tahoe 1989
Chevrolet S10 Tahoe 1990
Chevrolet S10 Tahoe 1991
Chevrolet S10 Tahoe 1992
Chevrolet S10 ZR2 1994
Chevrolet S10 ZR2 1995
Chevrolet S10 ZR2 2002
Chevrolet S10 ZR2 2003
Chevrolet S10 ZR5 2002
Chevrolet S10 ZR5 2003
Chevrolet S10 Blazer Base 1988
Chevrolet S10 Blazer Base 1989
Chevrolet S10 Blazer Base 1990
Chevrolet S10 Blazer Base 1991
Chevrolet S10 Blazer Base 1992
Chevrolet S10 Blazer Base 1993
Chevrolet S10 Blazer Base 1994
Chevrolet S10 Blazer High Country 1988
Chevrolet S10 Blazer High Country 1989
Chevrolet S10 Blazer LT 1994
Chevrolet S10 Blazer Sport 1988
Chevrolet S10 Blazer Sport 1989
Chevrolet S10 Blazer Sport 1990
Chevrolet S10 Blazer Sport 1992
Chevrolet S10 Blazer Tahoe 1988
Chevrolet S10 Blazer Tahoe 1990
Chevrolet S10 Blazer Tahoe 1991
Chevrolet S10 Blazer Tahoe 1992
Chevrolet S10 Blazer Tahoe 1993
Chevrolet S10 Blazer Tahoe 1994
Chevrolet S10 Blazer Tahoe LT 1991
Chevrolet S10 Blazer Tahoe LT 1992
Chevrolet S10 Blazer Tahoe LT 1993
Chevrolet S10 Blazer Tahoe LT 1994
GMC Jimmy Base 1992
GMC Jimmy Base 1993
GMC Jimmy Base 1994
GMC Jimmy Base 1995
GMC Jimmy SL 1995
GMC Jimmy SLE 1992
GMC Jimmy SLE 1993
GMC Jimmy SLE 1994
GMC Jimmy SLE 1995
GMC Jimmy SLS 1993
GMC Jimmy SLS 1994
GMC Jimmy SLS 1995
GMC Jimmy SLT 1992
GMC Jimmy SLT 1993
GMC Jimmy SLT 1994
GMC Jimmy SLT 1995
GMC S15 Base 1988
GMC S15 Base 1989
GMC S15 Base 1990
GMC S15 Gypsy 1988
GMC S15 High Sierra 1988
GMC S15 High Sierra 1989
GMC S15 High Sierra 1990
GMC S15 Sierra Classic 1988
GMC S15 Sierra Classic 1989
GMC S15 Sierra Classic 1990
GMC Sonoma Base 1991
GMC Sonoma Base 1992
GMC Sonoma Base 1993
GMC Sonoma SL 1994
GMC Sonoma SL 1995
GMC Sonoma SL 2002
GMC Sonoma SL 2003
GMC Sonoma SLE 1991
GMC Sonoma SLE 1992
GMC Sonoma SLE 1993
GMC Sonoma SLE 1994
GMC Sonoma SLE 1995
GMC Sonoma SLS 1993
GMC Sonoma SLS 1994
GMC Sonoma SLS 1995
GMC Sonoma SLS 2002
GMC Sonoma SLS 2003