Shorty Header (JBA, Pacesetter)
Drop-in replacement for the cast manifold without the long primary tubes. Fits in the stock location, more manageable install, smaller gains than long-tube.
A shorty header keeps the OEM downpipe interface but replaces the cast iron manifold with a tubular stainless or mild-steel piece. The main motivation is the cracking issue — a shorty solves the durability problem without the fitment headaches of a long-tube. Gains are modest (3-6 whp on stock engine) but it's a meaningful upgrade for a daily driver that needs the cracked manifold replaced anyway.
JBA Cat4Ward shorty (PN 1528S) is the most popular and fits cleanly with the stock heat shield and EGR setup. Pacesetter is the budget option and fits less well. Banks made a shorty for a while but discontinued it; the Borla long-tube replaced that slot in their catalog.
If you're going stroker, skip the shorty and go long-tube. If you're keeping the truck stock and the manifold cracked, JBA shorty is the right call.
Why it works
- bolt-in
- fixes cracked manifold
- keeps OEM downpipe
Trade-offs
- minimal performance gain
- still uses small collector
Tools required
- socket set
- torque wrench
- O2 sensor socket
Parts
| Part | Vendor | Est. price |
|---|---|---|
| JBA Cat4Ward shorty header | JBA | ~$480 |
Sources
Related
- Long Tube Header (Banks / Borla / Hedman)
- All Jeep Cherokee XJ guides & tools
- Browse the full DIY database
Written and maintained by an AZ wheeler and driveway wrencher. How we source guides. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.