2.5" to T4 single
  • 2.5" to T4 single
  • 2.5" to T4 single
  • 2.5" to T4 single

2.5" to T4 single


This is the best CNC merge collector available on the market. CNC machined from a solid billet for maximum durability.

This collector/adapter is 25mm thick (1 inch), allowing a smooth transition from the 2.5" tube to the T4 flange. The flange has a thickness of 12.7mm (½ inch) for great stiffness.



Return policy

The ultimate part for making exhaust manifolds for maximum performance. Featuring smooth transitions, and exact dimensions for the best flow possible. This translates into less back pressure, and means more power with the same boost, or the same power with lower boost (and less lag)!

This CNC billet turbo collector features chamfered entry pipes to make welding as simple as possible. This ready-to-weld part cuts hours or days off your exhaust manifold build time, and gives you a much better exhaust manifold!

4 Items

Data sheet

Inlet pipe/tube size
2.5" tubing
Outlet flange
T4 single-scroll
Wastegate size