aFe Silver Bullet Throttle Body Spacer Jeep Wrangler JL & Gladiator JT V6 3.6L | 46-35008

Overview

The aFe Power Silver Bullet Throttle Body Spacer (Part #46-35008) is a precision-engineered performance upgrade purpose-built for the 2018–2026 Jeep Wrangler JL and 2020–2026 Jeep Gladiator JT equipped with the 3.6L Pentastar V6. Machined from aerospace-grade 6061-T6 billet aluminum, this throttle body spacer installs between the throttle body and intake manifold to create optimized air turbulence, delivering real, measurable improvements in horsepower, torque, and throttle response. For Wrangler JL and Gladiator JT owners seeking the best bang-for-buck bolt-on upgrade without any tuning or engine modification, the aFe Silver Bullet TBS is an industry-leading choice.

Key Features & Benefits

• Patented Serrated/Helix Combination Design (US PAT #07055513) — Creates precisely calibrated air turbulence in the intake manifold, increasing air pressure in the combustion chamber for improved horsepower, torque, and throttle response — while eliminating the intake whistle common to helix-only spacer designs.
• Aerospace-Grade 6061-T6 Billet Aluminum Construction — Precision CNC-machined for a lightweight, high-strength build with a perfect fit and finish that looks as good as it performs.
• Longer Intake Tract — Adding the spacer between the throttle body and manifold extends the intake tract, increasing intake air speed for enhanced low-to-mid RPM performance and improved throttle response where you feel it most.
• 50-State Legal — CARB Compliant (EO# D-550-41) — Fully emissions-compliant in all 50 states, including California. Includes CARB E.O. sticker for smog inspection. Safe for daily drivers without voiding emissions compliance.
• Bolt-On Installation Using Factory Mounting Locations — Sandwiches directly between the OE throttle body and intake manifold using all stock bolt holes. No drilling, no cutting, no permanent modification required. Installs in minutes with basic hand tools.
• Compatible with OEM & aFe Intake Systems — Works seamlessly with the factory Jeep air intake as well as aFe POWER cold air intakes (P/N: 51/54/75-76217 & 51/54/75-13002-B) for stacked gains.
• Improved Fuel Efficiency — Owners report up to 1–1.5 MPG improvement in real-world driving conditions, making this a performance upgrade that can pay for itself over time.
• Includes Full Hardware Kit with Gaskets — All mounting hardware, lock washers, flat washers, and a sealing gasket are included for a complete, leak-free installation right out of the box.

What's Included

• 1x aFe Silver Bullet Throttle Body Spacer (PN 46-35008)
• 1x Spacer Gasket
• 4x #12-11 x 2" Mounting Screws
• 4x M6 Lock Washers
• 4x M6 Flat Washers
• 1x CARB E.O. Sticker (EO# D-550-41)

Specifications

Fitment & Compatibility

The aFe 46-35008 Silver Bullet Throttle Body Spacer is engineered for a direct, perfect fit on the following vehicles:

• 2018–2026 Jeep Wrangler JL — V6 3.6L (All Trims: Sport, Sport S, Sahara, Rubicon, 392 Xtreme Recon excluded)
• 2020–2026 Jeep Gladiator JT — V6 3.6L (All Trims: Sport, Sport S, Overland, Rubicon, Mojave)

Note: Compatible with both OEM factory intake systems and aFe POWER cold air intakes (P/N: 51/54/75-76217 & 51/54/75-13002-B). Not designed for the 2.0L turbocharged 4-cylinder JL engine. Confirm your build date if ordering for a 2018 model year vehicle to ensure JL (not JK) fitment.

Is this CARB compliant? Yes. The aFe Silver Bullet Throttle Body Spacer 46-35008 holds California Air Resources Board Executive Order D-550-41, making it 50-state legal and smog-inspection compliant in California and all other states. A CARB E.O. sticker is included in the box for use during smog inspections.

Installation

The aFe Silver Bullet TBS is a true bolt-on upgrade requiring no permanent modifications to your Wrangler or Gladiator. The spacer mounts directly between the throttle body and intake manifold using all factory bolt locations and the included hardware. Installation requires only basic hand tools (ratchet, sockets, flat-head screwdriver) and typically takes 20–30 minutes. No ECU tune or throttle body relearn is required after installation, though it is recommended to let the engine idle briefly after install to confirm unobstructed throttle butterfly operation. Retighten all bolts after the first 100 miles of driving. Professional installation is not required but is recommended if you are unfamiliar with engine bay work.