This Smeding Diesel S300 Turbo Kit is a perfect fit for 2004 - 2010 GMC vehicles with 6.6L Duramax LLY, LBZ & LMM engines. It's a great cost - effective alternative to those pricey VGT turbo options. VGT turbos have poor exhaust flow and create high drive pressure, but this kit doesn't have these problems. It comes with all the necessary parts to run an S300 Frame turbo on your 6.6L Duramax. All Smeding Diesel Parts are custom - built in Texas. It's a special order, and fulfillment may take longer. If you're in a hurry, contact us and we'll make special arrangements. The kit features a T4 Pedestal, a Smeding S300 Turbo, a 3.5' downpipe that works with factory or aftermarket exhaust, an oil feed line, an oil drain line, a coolant plug, gaskets, and bolts/other misc hardware. Regarding the differences between cast, billet, and SXE - R: a billet wheel is lighter than a cast one, resulting in less rotational mass on the shaft and faster spool - up. You'll get a bit better driveability without changing peak horsepower. The SXE - R (competition or race series wheel) is even lighter than the standard billet. It has a smaller hub, wider and arched blades, and an integrated nut. These features make it spool faster and push more air.

Using this S300 Turbo Kit is straightforward. First, make sure your vehicle is a 2004 - 2010 GMC with a 6.6L Duramax LLY, LBZ, or LMM engine. Then, install all the parts included in the kit one by one following the basic installation steps. Connect the oil feed and drain lines properly to ensure good lubrication and drainage. The 3.5' downpipe can be connected to either the factory exhaust or an aftermarket one according to your preference. As for maintenance, regularly check the oil lines for any leaks. Keep an eye on the turbo's performance and if you notice any unusual noises or reduced power, it might be time for a more in - depth inspection. Remember, these parts are custom - built in Texas and special ordered, so if you need replacement parts, contact the seller in advance to avoid long waiting times. Also, if you're in a hurry for the initial installation, reach out to the seller to arrange a faster fulfillment.