This Smeding Diesel S300 Custom turbo is a perfect drop - in replacement for 2003 to 2007.5 Dodge Ram with 5.9L Cummins engine. All Smeding Diesel parts are custom - built in Texas, and special orders may take longer to fulfill. If you're in a hurry, contact us for special arrangements. Part Number: SMED - 0945. Features include exhaust housing options of 12cm or 14cm, turbine wheel sizes of 65mm, 68mm, or 73mm, and compressor wheel sizes ranging from 62 - 63mm to 69 and 72mm. A lighter billet wheel means faster spool - up and better driveability. The SXE - R wheel is even lighter and has unique geometries for more air movement. The 12cm housing spools faster but may overheat during long wide - open throttle runs, while the 14cm handles such situations better. Choose the right turbine and compressor wheel sizes according to your power needs. For example, the 65mm turbine wheel is great for quick spooling up to 500 HP, the 68mm is good for 400 - 600 HP, and the 73mm supports 750 - 800 HP. Compressor wheel selection is also crucial. The 62 - 63mm wheels are ideal for 400 - 550 HP setups, the 64.5 - 66mm for 500 - 650 HP with supporting mods, and the 69 and 72mm for 600 - 750 HP in light street trucks and racers. Please choose your exhaust housing, turbine wheel, and compressor wheel.

Using this Smeding Diesel S300 Custom turbo is straightforward. First, make sure you've selected the right exhaust housing, turbine wheel, and compressor wheel according to your vehicle's power requirements. Installation is a drop - in replacement for 2003 - 2007.5 Dodge Ram with 5.9L Cummins engine. Just follow the standard turbo installation steps for your vehicle. When it comes to use, keep in mind that different wheel and housing combinations have different performance characteristics. For example, if you've chosen the 12cm housing, be careful during long, wide - open throttle runs as it may overheat. As for maintenance, regularly check the turbo for any signs of damage or wear. Keep the air intake clean to ensure the compressor wheel works efficiently. If you notice any strange noises or a decrease in performance, it's a good idea to have the turbo inspected by a professional. Also, remember that these parts are custom - built in Texas, and if you need any replacements or have questions, contact the manufacturer.