Banks 48774 Monster 4" Exhaust for 2006-2007 GM 6.6L Duramax LBZ Crew Cab Short Bed

• 4” Constant Diameter Cat-Back System
• Mandrel-Bent Stainless Steel Construction
• Improves Exhaust Flow by up to 176%
• Lowers Exhaust Gas Temperatures
• Straight-Through Muffler Design
• Exhaust Tip Not Included
• 5 Year Manufacturer Warranty
• Fits Crew Cab Short Bed

Looking for that Banks “Monster” performance with a modest price? Then Banks’ Monster Sport is the “cool cat-back” exhaust system you are looking for. That’s because the Banks’ Monster Sport Exhaust is meticulously designed & tested to deliver cooler exhaust gas temperatures. Cooler EGT equals power. This 4" rugged, heavy-duty 100% stainless steel Monster of an exhaust system helps eliminate backpressure. With air-flows up to 176% better than your Duramax’s stock exhaust, Banks Monster Sport exhaust system is streamlined with heavy-wall tubing and constant-diameter bends — increasing your truck’s airflow while improving fuel economy.

With a name like Monster you might think the Banks Monster Sport exhaust system obnoxiously over-powers in-cab conversations and music — not so. Unlike the noisy drone of many straight-through mufflers, this Monster’s muffler is extensively sound-tested and engineered with a unique expansion chamber and spun ceramic, a very high-temperature packing. The result? A rich, authoritative exhaust note that isn’t domineering — yet massively improves flow over the stock muffler! Now that’s a Monster!