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AEM Filters Brute Force Air Induction System with Power Spacer for 97-06 Jeep Wrangler TJ & Unlimited with 4.0L 6 Cylinder Engine

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Dyno tested to deliver more torque and more horsepower. How does a 13-horsepower gain @ 5,000 RPM for your 4.0L engine sound? Torque gains of over 15 ft./lbs. were also achieved at 4,500 RPM. AEM performs three-axis testing to qualify gains made at different throttle positions and to ensure extra power at every point across the rpm band. AEM air induction systems are individually tuned in length and diameter with the highest standards of construction. Kits include an exclusive throttle body spacer for maximum performance and a powder coated CNC mandrel-bent 6061 aluminum air tube with TIG-welded fittings and brackets. AEM now includes DRYFLOW Synthetic filters with their Brute Force Induction Systems. Made from a polyester synthetic media that never degrades over time, meaning it delivers the same filtration efficiency after its 50th cleaning cycle as it does right out of the box. The powder-coated steel heat shield blocks warm engine bay air, allowing the colder (horsepower producing) air though the intake. Made in U.S.A. 50-State Legal.
Installation Notes
Installation Difficulty:
Level 2Intermediate

Tools Needed
5/16� Socket
10mm Socket
5/16� Nut Driver
10mm Wrench

Installation Time: 1-2 hours
Parts Included

Performance Air Inlet Pipe
3.00" ID x 9.00" Long AEM Filter
3.00" to 2.75" Reducer Hose
2.75" Hose Clamp
3.00" Hose Clamp
11" x 5/8" Breather Hose
Two 1" Hose Clamps
Two 6mm Nuts
Two 6mm x 25mm x 1mm Washers
Rubber Mount
Heat Shield
3/8"-16 x 3/4" Hex Head Bolt
3/8"-16 Nut
Two 3/8" Washers
Mounting Nylon Cable Ties
18" Sponge Rubber Gasket
Throttle Body Spacer
Two Throttle Body Spacer Gaskets
Four M6 x 1 x 50 Hex Flange Bolts
Two Spacers
Two Bolts

Limited Lifetime Warranty.
  • Engine Size: 4.0L I-6
  • Engine Fuel: Gasoline
*Please make a selection above to view weight, dimensions, specs of a specific product
  • Jeep Wrangler (TJ)

  • 2006 Jeep Wrangler (TJ)
  • 2005 Jeep Wrangler (TJ)
  • 2004 Jeep Wrangler (TJ)
  • 2003 Jeep Wrangler (TJ)
  • 2002 Jeep Wrangler (TJ)
  • 2001 Jeep Wrangler (TJ)
  • 2000 Jeep Wrangler (TJ)
  • 1999 Jeep Wrangler (TJ)
  • 1998 Jeep Wrangler (TJ)
  • 1997 Jeep Wrangler (TJ)
  • Jeep Wrangler Unlimited (LJ)

  • 2006 Jeep Wrangler Unlimited (LJ)
  • 2005 Jeep Wrangler Unlimited (LJ)
  • 2004 Jeep Wrangler Unlimited (LJ)
CARB Certified for 97-06.

AEM Filters Brute Force Air Induction System with Power Spacer Options

Part NumberCatalog #Price
21-8311DC17012.004Powder Coated Silver$289.99
21-8311DP17012.104Mirror-Polished Finish$315.99
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