2011-2014 Ford 6.7L Powerstroke Compound Turbo Kits

Compound turbos on the 2011-2014 Ford 6.7L Powerstroke

From the factory, these trucks run one turbo: the Garrett GT32 SST DualBoost, a single-sequential VGT with a double-sided 46 mm compressor wheel on one shaft, sitting in the valley between the reverse-flow heads. It is responsive but restrictive, and it runs very high shaft speed and drive pressure. A compound kit leaves the factory VGT in place as the high-pressure stage and puts an atmospheric turbo ahead of it to feed it pre-compressed air. Because the VGT stays and keeps its control, the factory exhaust brake keeps working.

Where a compound kit fits

The GT32 is the most common big-ticket failure on this engine. Its ceramic ball bearings were the weak point on 2011 and 2012 trucks, and under aggressive tuning the shaft can pass 150,000 rpm with extreme drive pressure, the main cause of its failure rate. Failures commonly show up between 100,000 and 150,000 miles, earlier on tuned trucks, with loud screeching, tailpipe smoke, boost loss and oil consumption. A compound kit is one of the standard answers, alongside drop-in VGT replacements and the 2015-style GT37 retrofit. Which one fits depends on how far you plan to take the truck: the compound route keeps the factory VGT and exhaust brake, but it asks more of the fuel system.

Planning the build

Expect fuel-system upgrades to go with a compound kit: a lift pump upgrade and protection for the Bosch CP4.2 high-pressure pump, which is fuel-lubricated and sensitive to lubricity, water and aerated fuel. Compound kits can come in year-specific versions and different turbo frame sizes, so confirm which version matches your truck before ordering. Since the factory VGT stays as the high-pressure stage, its condition still counts: soot can stick the vanes and unison ring, and a failing actuator gives slow spool, surging and a weak exhaust brake. Service the CCV separator and inspect the charge pipes during the install, because oil-fouled pipes and crankcase pressure kill turbos.

What we carry

SPE Motorsport offers the Death Stalker Compound Turbo Kit, listed for 2011-2020+ trucks, and the Ultimate Turbo System Bundle, listed for 2011-2019. No Limit Fabrication adds the 67CTK Compound Turbo Kit, listed for 2011-2016. Read each listing for what the kit includes and exactly what it fits. Pair the kit with new gaskets, seals and crush washers, and flush the oil lines first. Browse the full turbos category or our Powerstroke hub for more 6.7L parts.

Fitment notes

The year ranges on these kits run past 2014, but 2011-2014 trucks differ from later ones in ways that matter for turbo parts: Ford changed the turbo for 2015 and revised the oil supply line and pedestal for 2017. Make sure the kit version you order is right for a 2011-2014 truck. Pickups and 2011-2016 chassis cabs also use different factory turbos, the GT32 DualBoost versus the AVNT3276V, so confirm your body style. If you register in California or another CARB state, confirm the kit's CARB EO status before you buy. Verify fitment by VIN.

Frequently asked questions

Does a compound kit keep my exhaust brake?

A compound kit that keeps the factory VGT as the high-pressure stage leaves VGT control in place, so the exhaust brake keeps working. On 2011-2014 trucks the exhaust-brake function is built into Tow/Haul and engages automatically. Check the kit's listing to confirm it retains the factory VGT.

Do I need fuel system upgrades with compound turbos?

Plan on it. Fuel-system upgrades, including a lift pump and protection for the CP4.2 high-pressure pump, are expected to go alongside a compound kit. The CP4.2 is fuel-lubricated and sensitive to poor lubricity, water and aerated fuel.

Compound kit or GT37 retrofit: which suits my 2013 F-350?

Both are common paths for these trucks, along with drop-in VGTs. The GT37 retrofit moves to the larger 2015-style turbo and needs a full kit: pedestal, later up-pipes and manifold, a two-piece 4 in downpipe, new lines and the lower intake manifold. A compound kit keeps the factory VGT and adds an atmospheric turbo to feed it. Call the shop with your plans and we will walk through both.

Do compound kits fit 2011-2016 chassis cabs?

Do not assume so. 2011-2016 F-350, F-450 and F-550 chassis cabs use the Garrett AVNT3276V instead of the pickup GT32 and run a 300 hp, 660 lb-ft calibration. Confirm the kit's listing names your chassis cab before you order.

Not sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.