Buy Diesel Performance and Gas Performance Products Factory Direct: 800-601-8072
01-04
Chevy/GMC - 6.6L Duramax LB7
Cool Sound. Cool Tips.
- 100% stainless, not aluminized!
- Doubles the flow; virtually no backpressure
- Huge polished ob-round rolled-edge tips
- Muffler’s expansion chamber cuts the drone
- Perfect fit; no spare tire relocation required
Monster® Diesel Duals Exhaust
Very fitting.
This is no cheap, ill-fitting aluminized exhaust. Banks' 4” Monster Exhaust is made of rugged, long-lasting 100% stainless steel. It fits better than the competition, because Monster Exhaust utilizes the factory hangers and maintains proper clearance to all under-vehicle components. Unlike other split-duals, Monster safely clears the spare tire, shocks and brake lines.
Performance art.
With nearly five decades of engineering airflow improvements, Banks has mastered the art of maximizing flow while minimizing backpressure. The polished straight-through Monster Muffler, mandrel-bent head pipe assembly (non-cat-converter-equipped vehicles only), intermediate pipe(s) and tailpipes improve flow up to 150%, virtually eliminate backpressure, lower exhaust gas temps and deliver more power to the ground. And the 6X5” polished-stainless angle-cut rolled-edge tips have real “show” quality!
Not just flow-tested. Sound-tested!
Many straight-through mufflers deliver an obnoxious drone that overpowers conversations. Monster Muffler is extensively sound-tested, and engineered with a unique expansion chamber and high-temperature packing. Instead of a drone, you're treated to a rich exhaust note that's authoritative, yet civil. It sounds as great as it looks!
| Application | Year Range | Part # |
|---|---|---|
| Monster Exhaust, Split-dual LB7 | Std cab, long bed | No cat converter | 2001-04 | 48670 |
| Monster Exhaust, Split-dual LB7 | Ext/crew cab, short bed | No cat converter | 2001-04 | 48671 |
| Monster Exhaust, Split-dual LB7 | Ext/crew cab, long bed | No cat converter | 2001-04 | 48672 |
| Monster Exhaust, Split-dual LB7, LLY | Std cab, long bed | Cat converter | 2002-05 | 48673 |
| Monster Exhaust, Split-dual LB7, LLY | Ext/crew cab, short bed | Cat converter | 2002-05 | 48674 |
| Monster Exhaust, Split-dual LB7, LLY | Ext/crew cab, long bed | Cat converter | 2002-05 | 48675 |
Owners Manual(s)
| Split-Dual Monster Exhaust ('01-07) LB7, LLY & LBZ (Part #96439) |  Download |
LB7 tuner & exhaust: Way More Fun Than Any Muscle Car I’ve Owned Over The Last 35 Years
2005-04-15
Steve of Sarasota, Florida, installed a Six-Gun, Speed-Loader and Monster exhaust system on an ’02 GMC 2500HD with a Duramax 6.6L turbo-diesel
I pull a 12,000 pound construction trailer with my GMC 6.6 D/A 2500HD. I have installed the Six-Gun, Speed-Loader, and [Monster] Exhaust. WOW!! I recently towed 2,200 miles from Florida to Indiana and back. Mileage is way up. Exhaust temp is way down and the torque is Unbelievable. Without the trailer and just with a little spool up on the brakes at a red light, this thing will smoke just about any production street car. This is way more fun that any muscle car I have ever owned over the last 35 years. Thanks for your great products.
LB7 tuner & exhaust: Even the Other “Chipped” Diesels Could Not Keep Up!
2005-02-07
Jim of West Columbia, Texas, installed a Six-Gun and a Monster Exhaust system on an ’01-04 K2500 Crew Cab Duramax LB7 6.6L turbo-diesel
I bought my new K2500 Crew Cab because I had just out-grown my old 1/2 ton. My business had expanded so much that my old truck was getting tired. I have always been a GM man and was getting so tired of the "Power choke" and "Wait, I'm Cummins" boys bash the DuraMax. I started to look at diesel "hop-up" products. I went with Banks because you are known for your milestone diesel enhancements with over all concern for safety and dependability. After the install I was shocked with the results that were achieved. I went out to show off my new toys, and found that even the other "chipped" diesels could not keep up! I wear my Banks stickers with pride because all the other guys are spending more money on other companies’ products trying to catch me (us). I wish they would only listen and call BANKS!
Accolades
“Gale Banks pulled more power out of diesel engines than just about anyone—from motorhomes to record-breaking Bonneville salt racers.”
Diesel Power (Summer '05)