BNM Performance Fab 3-Bolt Up-Pipe

The BNM Performance Fab Up-Pipe is designed as a direct-fit solution for aftermarket headers using the popular 3-bolt flange pattern. It offers seamless integration with leading header brands such as PSR, Tomei, Roger Clark Motorsport, ETS (Extreme Turbo Systems), and naturally, BNM Performance Fab's own 3-bolt headers.

This up-pipe is the ideal companion for customers purchasing new headers that don’t include a matching up-pipe, such as the BNM or ETS 3-bolt header kits, or for those looking to replace an existing 3-bolt up-pipe that has been worn, cracked, or heat-cycled beyond serviceable condition.

Constructed from high-quality stainless steel and crafted with precision welds and flanges, this up-pipe maintains optimal exhaust flow and thermal stability between the header and turbo. Whether you’re completing a new build or restoring the performance of a seasoned setup, this component ensures durability and proper fitment where it matters most.

Important Notes:

Gaskets and hardware are not included.

While this up-pipe is compatible with OEM-style gaskets and studs, we strongly recommend installing new gaskets and high-temp fasteners during any header or up-pipe replacement for the best long-term seal and reliability.

About BNM Performance Fab

BNM Performance Fab is built on a simple principle: do the job right, or don’t do it at all. Every part that leaves their workshop in the USA is hand-fabricated by a team that lives and breathes high-performance Subaru tuning.

This isn’t mass production. It’s precision fabrication using premium 304 and 321 stainless steel, shaped and welded with care, one piece at a time. From the first cut to the final weld, BNM components are crafted with a deep respect for quality and performance.

These parts are designed for builders who push beyond the factory limits. They’re made to take on high heat, serious boost, and the wear that comes with hard driving. Fitment is spot-on, with designs that install cleanly without modification or frustration.

BNM’s attention to detail is where it really shows. The use of thick, oversized, laser-cut flanges helps eliminate common problems like warping or exhaust leaks, even after countless heat cycles. Every weld, every cut, every finish is made to last.

Whether you’re upgrading a daily driver or building a full track car, BNM parts are built to support your goals now and into the future. They’re trusted by Subaru owners and engine builders who refuse to settle for generic bolt-ons. If your setup demands strength, reliability, and real craftsmanship, BNM delivers.