Diamond Eye 4" Aluminized Cat-Back Single Outlet Exhaust with Turbo Direct Pipe 04.5-05 LLY Duramax

Diamond Eye 4" Aluminized Cat-Back Single Outlet Exhaust with Turbo Direct Pipe 04.5-05 LLY DuramaxUpgrading your exhaust in your LLY Duramax is possibly the most popular upgrades a diesel enthusiest will do. Upgrading exhaust not only aids in power, fuel economy, and overall sound, but it also looks really cool. This 4" Aluminized Cat Back kit from Diamond Eye is an excellent upgrade for your LLY Duramax. This kit also includes an upgraded turbo direct pipe that features CNC machined end forms for precise fit, mandrel bent tubing for smoother flow

Upgrading your exhaust in your LLY Duramax is possibly the most popular upgrades a diesel enthusiest will do. Upgrading exhaust not only aids in power, fuel economy, and overall sound, but it also looks really cool. This 4" Aluminized Cat Back kit from Diamond Eye is an excellent upgrade for your LLY Duramax. This kit also includes an upgraded turbo direct pipe that features CNC machined end-forms for precise fit, mandrel bent tubing for smoother flow from the turbo and is covered with special thermal resistant wrapping to help reduce your EGTs by up to 150 degrees.

DETAILS OF EACH MUFFLER/ELIMINATOR PIPE OPTION

Diamond Eye Muffler: This is the standard muffler that comes in the kits. Featuring a stainless steel construction and perforated core, you really can't go wrong with this muffler. The muffler itself gives the truck a deep tone, while not being overly loud and does a good job of reducing exhaust drone.

No Muffler / Straight Pipe: For those that want the uninhibited sound of straight pipe, here it is. This is a complete kit, but instead of shipping with a muffler, you will receive an eliminator pipe to give you the exhaust bark you're after. If you ever want to put a muffler back into the system, you'll merely need to remove the eliminator pipe and install a proper length muffler.

EXHAUST TIP OPTION

No, it won't add 20 horsepower or give you better mileage, but adding an exhaust tip (or tips on dual kits) simply adds the finishing touch. As another way to make ordering easier, we allow you to simply add Diamond Eye's most popular tips right from this page to complete your kit. You have the option of Diamond Eye's 4" to 5" angle cut, rolled edge, bolt-on tips in either a stainless steel (PN: 4512BRA-DE) or black powdercoat (PN: 4512BRA-DEBK) finish. We will add the appropriate amount of tips for a single or dual kit. And if you either don't want to add a tip, or would like to choose a different option, no problem, just select "No Tip(s)."