FLOW STATE PERFORMANCE S55 DOWNPIPES

Flow State Performance S55 Catless Downpipes

Engineered to maximize exhaust flow and unlock the true potential of the S55 engine, Flow State Performance S55 Catless Downpipes eliminate restrictive OEM catalytic converters for faster turbo spool, noticeable power gains, and even more brap!

Build Quality & Materials

Fabricated from heavy-wall, premium T304 stainless steel and meticulously TIG-welded to handle intense track usage and elevated exhaust gas temperatures.

Fitment

Features precision CNC-machined flanges and integrated O2 sensor bungs that guarantee a perfect, leak-free bolt-on alignment with factory turbos and mid-pipes.

Performance Benefit

Optimizes exhaust velocity and significantly reduces backpressure, making it an essential upgrade for Stage 1, Stage 2, and custom-tuned S55 platforms.

Designed for BMW F80 M3, F82/F83 M4, and F87 M2 Comp