10-12 Cummins S400 2nd Gen Swap Kit

Bring more power and reliability to your 2010 - 2012 6.7 Cummins with our 2nd Gen Swap Kit ! A correctly sized S400 turbo with good tuning works incredibly well for a daily driver / tow rig and even play on the track ! We have found very low EGT's while towing, great drive pressure ratios and very good fuel economy with this setup. With proper tuning and turbo, a stock fuel 6.7 can make 600 rwhp and with an aftermarket fuel system the sky is the limit ! This kit will work with any S400 frame turbo that features T4 manifold flange, 4.62 flat V band exhaust outlet, 5" compressor inlet and 4.2" V band compressor outlet.

All of our 2nd Gen Swap kits now include a direct fit downpipe. This down-pipe will clamp directly to your exsisting exhaust for a very easy install. No cutting or welding required to connect your s400 turbo to the exhaust system.

*** This kit is available for S400 SXE turbos as well ***

This is a complete INSTALL kit including:

  • 5" welded aluminum intake w/ MAF & IAT bungs
  • 4" 4.62 S400 DIRECT-FIT downpipe w/ clamp
  • 3" aluminum intercooler tube
  • silicone intercooler boots
  • all stainless t-bolt clamps
  • billet aluminum fitting and coolant lines to remove EGR coolant riser
  • all necessary clamps, plugs and misc hardware for a clean install
  • INCLUDES 3 piece manifold !
  • braided stainless oil supply and drain lines


All kit are availble raw or powder coated any choice of colors

G & R Diesel

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