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Speed School Podcast with Gale Banks

Monster Exhaust System

Buy Now For $289.00

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Monster Exhaust System

Buy Now For $289.00

Add To Cart
Banks Monster Exhaust system

Monster Exhaust System

Flows up to 140% better than stock!
2.5-inch Single Exit, Chrome ObRound Tip
For 2004-2006 Jeep Wrangler LJ 4.0L, Unlimited
In stock, ready to ship!
MSRP $356.79


Free Shipping on orders over $250 (48 Contiguous US)*

Huge 2.5-inch stainless mandrel-bent tailpipe. Flows up to 140 Percent better than stock. Chrome tip Straight-thru Monster muffler. For maximum results, combine with Banks TorqueTube system.

CARB E.O. Not Required

Fitment Note

Fits 4.0L Wrangler Unlimited


Constructed entirely of heavy-gauge stainless steel, Banks Monster features a supersized, 2.5-inch tailpipe with a stainless tailpipe tip polished to a mirror finish. Banks Monster muffler, its straight-through performance muffler, is the industry's least restrictive. In comparison tests, Banks muffler flowed 501.2 cfm at 1 psi, a 140% improvement over the stock exhaust's 208.6 cfm, and about 44% better than the nearest competitor.

Monster  virtually eliminates backpressure  from the catalytic converter back, for more power and efficiency with an authoritative, yet civil, exhaust note. For maximum results, combine with Banks TorqueTube® system.

Includes:  Stainless Monster muffler; Stainless 2.5" tailpipe; Stainless tailpipe tip in polished chrome or black; Mounting hardware.

Key Features

  • Mandrel bent Stainless Steel construction
  • Virtually eliminates backpressure
  • Lowers exhaust gas temps
  • Dramatically improves flow
  • Maximum Airflow
  • Huge 2.5 inch stainless mandrel-bent tailpipe
  • Flows up to 140% better than stock
  • CHROME tip
  • Straight-thru Monster muffler
  • For maximum results, combine with Banks TorqueTube system

Questions? Contact Support

If you want to get technical, then yeah, the white Jeep below is a 3.6L, but the photos will still give you an idea of what a Banks tip would look like on your 4.0L.

click for larger

free test report   Here's the TEST REPORT
for your vehicle!

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