This is Brian Tooley Racing's Stage 2 camshaft for turbo LS applications. It is a hydraulic roller, 3-bolt camshaft for Gen III and IV LS engines.
Specs: 226/231 .610"/.608" 113+4
In BTR's opinion, this is the most versatile turbo camshaft on the market today. The Stage 2 has been proven to be an excellent camshaft choice for cathedral port headed 5.3s and 6.0s utilizing a wide range of different turbos. Whether you're putting together a budget street build with a small 7275 turbo or aiming for the fences with a Borg Warner S488, this camshaft will make sure the valve events are optimized for your pressurized application.