Before the Cheetah my EGTs would creep into the worry zone on sustained grades with a loaded trailer — after the swap they stay comfortable even in the same conditions. The turbo itself feels well-built, shaft play is tight, and boost response is satisfying.

EGTs dropped noticeably pulling my trailer on the interstate and the turbo spools up way earlier in the RPM range than the factory unit ever did. Install was involved but Fleece's instructions are detailed and everything lined up on the first try.

The performance difference is immediately obvious — throttle response under load is sharper and the truck pulls grades without the EGT climb I was used to managing. Only giving it four stars because a couple of the oil line fittings were tight to access and I'd have appreciated a torque spec sheet in the box.

Runs commercial routes towing equipment daily and the Cheetah has kept EGTs in check through every hot summer load I've thrown at it. Boost pressure is consistent and there's no rattling or shaft noise even after a lot of hard miles.

Pulling 14k lbs over mountain passes and the Cheetah just keeps pulling without the EGT spike I used to manage on every long grade. Spool is crisp, no lag at cruise when you want to pass, and the 6.7L feels like a different engine.

Third performance part from Fleece and the quality is exactly what I've come to expect — this turbo feels like a purpose-built piece, not a reboxed unit. Spool and towing EGTs are night-and-day better than the factory 6.7L setup.

Spool comes on fast enough that highway passing is actually fun again in a diesel truck — you don't have to plan it two lanes in advance. Very happy with the build quality; nothing felt cheap in the install process.

Spool time is dramatically better under load — merging on the highway with a gooseneck no longer requires a head-start and a prayer. Installation took me most of a Saturday and I'd recommend having all the gaskets staged before you start, but the end result is worth the effort.

Does what it should. Build quality is excellent. Holds up great so far. Setup took no time. Sturdy and durable. Fitment was spot on. Would buy from them again.