Monster Muflers by Banks. Get increased power and torque from reduced backpressure with this straight-through muffler. With its straight-through, massive 4" core, this muffler presents essentially no backpressure to your engine. The Monster is the ultimate in low backpressure exhaust system design. And along with all that power, the Monster delivers a deep, throaty exhaust note, without any annoying drone. The Monster muffler comes in polished stainless steel for long lasting good looks.

Features:

• Reduces Back-pressure and Increases Exhaust Flow
• 100% Stainless Steel
• Polished exterior
• Superior Flow and Rich, Throaty Sound
• Straight-through flow path
• Exclusive expansion chamber dissipates annoying mid-range drone
• Flows up to 201% better than stock
• Produces a Deep Exhaust Tone without Annoying Cab Drone
• Increases Torque, Power, and even Increases Fuel Mileage
• All Tubing is Mandrel Bent for constant diameter and smooth airflow
• Includes all needed parts and hardware

With a massive, straight-through 4" core, this muffler represents essentially no backpressure to your engine. Sure, that's easy to do—why bother with a muffler at all? Banks has managed to make this muffler achieve high flow without the bark that upsets the neighbors while tooling through the neighborhood - or the drone that sets the driver's teeth on edge when keeping up with traffic on the freeway. It's the best of both worlds. The Monster muffler uses an exclusive straight-through expansion chamber design that provides a deep, throaty exhaust note, but doesn't make you crazy with freeway drone. Packed with a refractory ceramic packing instead of fiberglass, these mufflers will retain their mellow note far longer than the competition.

Reduced backpressure means you don't spend money on fuel to push exhaust out through a restrictive exhaust system and muffler. The Monster system lets it flow more easily, giving you improved power, torque and fuel economy all at the same time. Letting more exhaust downstream faster means better scavenging of the cylinders, which in turn means more cylinder filling with intake air. That translates directly to improved power and torque. You'll feel that improvement immediately, whether you haul a heavy load or tow a big trailer. That goes double if you ever go up a hill.