PQY 1-Inch Throttle Body Spacer for Jeep TJ/YJ/XJ 2.5L/4.0L – Raise Manifold, Gasket Included

Boosted throttle response with the PQY 1-Inch Throttle Body Spacer

The PQY throttle body spacer sits between the throttle body and intake manifold, adding a touch of extra plenum volume. This small but solid 1-inch spacer helps the air charge remain dense as you move from idle to mid throttle, providing a more immediate feel when you press the accelerator. Built for 4-bolt throttle bodies on 4.0L and 2.5L Jeep powertrains, it offers a straightforward bolt-on upgrade that complements your stock setup without altering essential engine parameters.

Think of this upgrade as a practical accessory for drivers who want a responsive yet balanced driving experience. While it does not change fundamental engine specs, the design aims to support a smoother transition from idle into efficiency-friendly RPM ranges, which can translate to more confident throttle control in everyday driving, during hill climbs, or when merging onto highways.

What you might notice after installation

• Off-idle torque may improve from about 800 rpm to roughly 3,000 rpm, contributing to quicker responses at low speeds
• Smoother throttle transitions and a more predictable feel when stepping on the gas
• Potential improvements in engine efficiency and drivability in certain driving conditions

How it works and what’s included

With a 1-inch thickness, the spacer creates a slightly larger air plenum behind the throttle plate. This design aims to maintain a denser air charge as you open the throttle, which can translate to a more responsive feel during light-to-moderate acceleration. The kit is built for bolt-on installation, using your existing throttle body hardware.

• 1x aluminum throttle body spacer
• 2x gaskets
• 3x spacers
• 7x bolts with small washers

Compatibility at a glance

Designed for Jeep TJ Wrangler 1997-2006 4WD; TJ Unlimited 2004-2006 4WD; YJ Wrangler 1987-1995 4WD; XJ Cherokee 1984-2001 4WD/2WD; MJ Comanche 1986-1993 4WD/2WD. This spacer is intended for models with 4-bolt throttle bodies and the 4.0L or 2.5L engines.

Notes for installation

• Easy bolt-on installation
• No installation instructions included; basic mechanical skills recommended