Smeding Diesel S362/65 Drop-In Turbo Upgrade 94-02 Dodge 5.9L Cummins

The factory Holset turbos found on the 2nd Gen Cummins were either an HX35 or HY35 depending on model year and transmission. The HX35 featured a 12cm housing where the HY35 had a much smaller 9cm to aid in fast spoolup. Unfortuntaley, due to the fact that 99.9% of 2nd Gen Cummins have upgraded the power output of their trucks and the gross popularity especially of the 2000-2002 trucks with an automatic transmission, meaning they had the smaller HY35 turbo, these trucks are starving for a turbo upgrade! 

Good news: Smeding Diesel specializes in turbo upgrades for these trucks and delivers options for varying power levels. This particular turbo features a 62mm compressor and a 65mm turbine. No, this isn't the biggest turbo out there and its not meant to be. This turbo is excellent for trucks under 500 horsepower that still daily drive, tow, have larger tires with stock gears, so basically every 12 and 24 valve truck on the road! Available in both a 14cm (0.80 A/R) and 12cm (0.70 A/R), you can select basically how much backpressure is on the turbo. Relatively speaking, the smaller the A/R, the faster it will spool, but the higher the EGT's, especially at higher elevations and/or ambient temperatures. 

The next option you have is what the exhaust outlet will look like. If you are currently running a stock turbo and have either the stock exhaust or have upgraded to a larger than stock exhaust, but still running a stock turbo, then you'll want the Down Pipe Adapter that fits the factory down pipe connection. Conversely, if you've already upgraded to an HX40 style downpipe due to an aftermarket turbo upgrade that required this, then you would need this different outlet. 

And finallly, if you're WANTING to upgrade to an HX40 downpipe, then you can opt for this outlet and have a downpipe included in the kit. Remember, you'll need to have an existing 4" exhaust, or you could do a 5" with a four to five inch adapter. Overall, if you're looking to upgrade the turbo on your 1994-2002 Cummins and want something that will spool well, keep temps down, be fun to drive, and deliver a boost in power, this Smeding Diesel 62/65 Turbo is a great choice.