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Exhaust› Headers, Manifolds and Components

Jba

4.0L Shorty Performance Header

$656.66 $579.00 Save $77.66

SKU: 1526S

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The JBA 1526S is a shorty performance header designed for 1991-1999 Jeep Wrangler and Cherokee models with a 4.0L engine. Constructed from durable, mandrel-bent stainless steel, this header features JBA's proprietary Firecone collector for maximum power and torque gains.
Show original supplier description
The JBA 1526S is a shorty performance header engineered to be a significant upgrade over stock manifolds for 1991-1999 Jeep Wrangler and Cherokee models equipped with the 4.0L engine. Constructed from durable, mandrel-bent stainless steel tubing, this header is built to withstand the rigors of racing, towing, and daily driving. The header boasts 1.625-inch primary tubes, a 2.25-inch collector port diameter, and 3/8-inch thick machined flanges with oversized exhaust ports for optimal flow. The header has an uncoated, matte grey finish. It is CARB EO Number: D-57-46, making it 50-state legal when installed according to manufacturer instructions. The header application is based on original engine and cylinder head port centerlines; raised port cylinder heads may cause installation issues.
Vehicle Symptoms
  • Exhaust leak ticking from manifold
  • Reduced power during acceleration
  • Poor fuel economy
  • Check engine light for catalyst efficiency
  • Rough idle after warm-up
Diagnostic Codes
  • P0420 – Cat Sys Efficiency Below Threshold (B1)
  • P0133 – O2 Snsr Slow Response B1 Snsr 1
  • P0131 – O2 Snsr Ckt Low V B1 Snsr 1
  • P0300 – Random or multiple cylinder misfire Det
Relevant Conversations
  • ticking noise from engine bay 4.0L Jeep
  • JBA 1526S header install time
  • best shorty header for 4.0L Cherokee
  • P0420 after header replacement
  • JBA vs Banks header for 4.0L
  • shorty header vs long tube for XJ
  • 4.0L performance exhaust upgrade forum
  • will JBA headers fit 1999 Wrangler
  • header install tips for 4.0L
  • co-purchase header gasket JBA

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandJba
Part Number1526S
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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