Second Gen Swap Kit – what is it? The Second Gen Swap Kit simply means that you change some parts around on your Third Gen Common Rail 5.9 or 6.7 (2003-2009) or Forth Gen 2010-2018 so that the turbo is mounted centered in the same location as it did in a Second Generation truck from 1994-2002. If you have been intimate with your truck, you know that the stock charger is mounted low and under cylinders five and six. Although this location works and everything fits, it does leave some performance to be gained by changing things up a bit. The Second Gen manifold is divided, meaning the cylinders are paired, 1-3 go to one port, and 4-6 the other. This gives you better performance by matching the exhaust pulses and minimizing turbulence when opposing cylinders are firing. Additionally, by running a center mounted turbo, you will have equalized drive pressures leading to a more balanced Exhaust Gas Temperature.
The kit begins by center mounting the turbo using a divided T4 Billet Steed Speed manifold engineered for performance in conjunction with Borg Warner’s S400 based turbo line. You can choose “No Turbo” if you already have your favorite S400 turbo, just make sure your turbine outlet is machined to a 4.0” HX40 style flange. You can go with the very popular S463/S464 turbo or choose one of AGP’s S400 based Z product line with billet wheels, 360 thrust bearings, and positive o ring sealed covers. Turbine housing A/R can be chosen from .90 ro 1.25 to perfectly match your engine setup. The exhaust manifold is tapped for EGT and Drive Pressure monitoring, simply remove the preinstalled plugs and thread in your favorite sensors. The charge pipe is also 304 stainless that goes from the compressor discharge to your intercooler coupler.
We include an aluminum 5” short ram air intake for the turbo combined with a huge S&B filter so every bit of air makes its way to the turbo. The exhaust exits via our 4” diameter stainless midpipe which ends in the stock location for the 03-04 or 04.5-18 trucks. All silicone couplers, clamps, gaskets, oil lines, water plugs (if applicable) and hardware is included in this kit for a straightforward installation.
We offer mirror polishing on the compressor housing and ceramic coating on the manifold, turbine housing, and midpipe. The polishing is for looks and the ceramic coating is for looks and performance. Although we’ve never been able to run a measurable back to back performance test, the drop in underhood temperatures when the exhaust components are coated provides a cooler charge air which leads to denser airflow and cooler EGTs in theory.
What turbo should I choose? This becomes the million dollar question and one that keeps you up late nights losing sleep over. If you have a manual truck, we are always going to recommend the smallest turbo we offer, which would be a S463 in a .90 A/R. If your truck is an auto, most setups we'll recommend a Z463 or Z467.7 both in .90 housings for the 5.9. If you have a 6.7, the Z467.7 .90 is an awesome turbo if you tow a lot. For a heavily fueled 6.7, the Z472 in a 1.0 could be a real killer for a hot rod truck.
Steed Speed T4 Ceramic Billet Manifold with Gaskets
S400 Based Turbo of Your Choice
T304 Stainless Midpipe
T304 Stainless Charge Pipe
Oil Feed and Drain Lines
5" Aluminum Intake with SB Intake Filter
Coolant Block off Fittings (If Applicable)