1987-1990 Jeep Wrangler 4.2L 6 Cyl AMC 258 Exhaust Header
1987-1990 Jeep Wrangler 4.2L 6 Cyl AMC 258 Exhaust Header is backordered and will ship as soon as it is back in stock.
Confirm vehicle fitment
Confirm vehicle fitment
Confirm fitment before ordering. Match the year, make, model, trim, engine, drivetrain and selected options shown on this page. If any detail is unclear, search your exact vehicle or contact us before checkout.
Shipping expectations
Shipping expectations
Availability and processing time can vary by manufacturer. Available shipping choices and charges appear at checkout. Tracking is emailed after shipment. Oversized, special-order and supplier-shipped items can require additional processing time.
Returns and cancellations
Returns and cancellations
Please review eligibility before purchase. Installed, used, electronic, custom, special-order and clearance items may have return restrictions. Contact us promptly if you need to change or cancel an order.
What’s included
What’s included
The product description and selected variant determine what is included. Items shown in lifestyle or installation photos are not included unless they are specifically listed in the description.
1987-1990 Jeep Wrangler 4.2L 6 Cyl AMC 258 Exhaust Header
1987-1990 Jeep Wrangler 4.2L 6 Cyl AMC 258 Exhaust Header is backordered and will ship as soon as it is back in stock.
Buy with confidence
Verify fitment, selected options, availability and included components before checkout. Secure payment options and order confirmation are provided at checkout.
Description
Description
Exhaust Headers For 1987-1990 Jeep Wrangler 4.2L 6 Cyl AMC 258 Engines
Upgrade your Jeep with this high-performance AMC 258 header, designed for 1987–1990 Jeep Wrangler 4.2L 6-cylinder engines. Crafted from polished stainless steel with mandrel-bent 1.50" tubes and a 2.00" collector, it improves exhaust flow, boosts horsepower, and enhances engine sound. Direct bolt-on fit—no modifications needed.
Specifications:
Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: Stainless Steel
Surface: Mirror Polish
Tube Diameter: 1.50"
Collector Diameter: 2.00"
Exhaust Header VS Manifold, which is the better choice?
The structural differences between exhaust headers and manifolds mainly lie in material and design. Exhaust headers are made of lighter, thinner steel, while manifolds are typically built from thick cast iron. Headers are also longer, and because each engine cylinder is connected to its own individual tube, they help reduce back pressure—unlike manifolds, which often restrict exhaust flow and decrease performance.
By minimizing back pressure, exhaust headers improve engine efficiency, allowing exhaust gases to exit more freely. This results in better performance, increased horsepower, and enhanced sound—making headers the better choice over traditional manifolds, especially for engines like the AMC 258 4.2L 6-cylinder found in the 1987–1990 Jeep Wrangler.
Upgrading or replacing your exhaust header is essential for those looking to boost both engine output and exhaust tone. Whether you're on the street or off the trail, FLASHARK offers a range of performance headers to meet your needs. Our designs are direct bolt-on, requiring no modifications, making installation quick and convenient.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product features
Use this section to highlight specific product features to your customers.
Product comparison grid
Add content here to explain a bit about the range of products on offer and which ones may be most suitable for your customers.
