The aFe 46-40114 is a left/right cast ductile-iron exhaust manifold pair for 2007–2011 Wrangler JK 3.8L V6 applications. It mates with the factory Y-pipe and has machined inlet/outlet ports. It is not a stainless complete exhaust or a turbocharger kit.
| Years | Model | Exact engine / requirements |
|---|---|---|
| 2007–2011 | Jeep Wrangler JK, including supported Unlimited configurations | 3.8L V6; exact body/engine and factory Y-pipe connection. Not later 3.6L JK or JL. |
46-40114: The exact BOM lists two manifold castings, four studs and four nuts; replacement gaskets are explicitly not supplied. Generic Filter Included/Coupler Included fields do not establish filter or hose contents. This exact guide does not list diesel-style EGT plugs or probes, so those contents and port claims must not be borrowed from a related diesel manifold. The guide removes both original heat shields but does not explicitly instruct reinstalling them; verify the correct actual shielding arrangement rather than inventing a reuse or disposal instruction.
| Detail | Value |
|---|---|
| Manufacturer Part Number | 46-40114 |
| Configuration | Left-side and right-side manifold pair, with supplied Y-pipe connection studs/nuts |
| Material / runners | Heavy-wall cast ductile iron with machined inlet/outlet ports |
| Finish | No polished exhaust tip, stainless tubing or separate coating package is certified |
| Fasteners / torque | Use the original head-mounting bolts, starting at the middle and working outward: 16–20 ft-lb. The exact October 2018 guide gives no numerical Y-pipe stud/nut torque, spark-plug torque or mileage recheck interval. |
| Retained equipment / installation | Remove and label the spark-plug wires and spark plugs for access; reconnect every wire at its original location and keep wires off the manifolds with adequate clearance. Both inner fender splash guards are removed and restored. |
| Emissions | The current exact primary page states not CARB exempt; unavailable for purchase in California or use on California-registered vehicles. |
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
A cast ductile-iron left/right manifold pair for the specified 3.8L Wrangler JK, not a stainless header/tailpipe package.
Does it include exhaust gaskets?No. The exact manual requires new gaskets but explicitly says they are not supplied, with a factory reference to be verified for the actual engine.
Which hardware is supplied?Four studs and four nuts for the two pipe joints. The original cylinder-head mounting bolts are reused.
What is the manifold mounting torque?16–20 ft-lb, beginning at the middle bolt and working outward. The guide supplies no numeric Y-pipe nut or spark-plug torque.
Does it include diesel-style EGT plugs or probes?The individual parts list contains neither. Do not infer those contents or ports from related diesel manifolds.
What must happen to the spark-plug wires?Mark them before removal, reconnect each at its original position and provide adequate clearance so none directly contacts the manifold.
Are the original heat shields explicitly reinstalled?The guide removes them but does not specify a reinstallation step. Verify the correct actual shielding arrangement rather than assuming reuse or disposal.
Is it CARB exempt?No. The current exact manufacturer page states the California purchase/use restriction.
46-40114: inspect every connection and resolve the documented kit discrepancies before operation.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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