5.75" S400 T6 Chassis Marmon Downpipe Flange with Clamp

Stop hunting for the right flange and wondering if the clamp is sold separately. This S400 T6 Marmon downpipe flange comes with everything you need to make a clean, confident connection right out of the package.

Features & Benefits

Precise S400 T6 Fitment

Engineered specifically for the S400 chassis on a T6 manifold, this 5.75" Marmon flange takes the guesswork out of your downpipe build. If you're running an S400 or S400SX4 turbo on a T6 platform, this is the piece you're looking for.

Clamp Included — No Surprises

The matching Marmon clamp is included in the box. One purchase, one package, ready to assemble. No chasing down a separate clamp or hoping your local supplier has the right size on the shelf.

Leak-Free Mating Surface

The flange face is precision-machined to produce a reliable, tight seal at the downpipe connection — critical on high-output builds where exhaust leaks cost you both power and peace of mind.

In Stock and Ships Fast

Stocked domestically and fulfilled by BSI Inc., this flange ships across North America without the cross-border delays, surprise duties, or USD conversion that often come with sourcing from American performance shops. Canadian customers pay and shop in CAD — straightforward, with no import headaches.

Built for Real Builds

Whether you're putting together a serious street rig or a purpose-built competition exhaust system, this flange is designed to handle the demands of a high-performance forced-induction setup.

When fitment and reliability matter, don't settle for a generic part shipped from across the border — get the right piece, with the clamp, backed by BSI Inc.

FAQ

What turbo and manifold setup is this flange made for?

This 5.75" Marmon flange is engineered specifically for the S400 chassis on a T6 manifold. It is suited for S400 or S400SX4 turbo setups on a T6 platform.

Is the Marmon clamp included?

Yes. The matching Marmon clamp is included in the box, so you do not need to source the clamp separately.

How does this flange help seal the downpipe connection?

The flange face is precision-machined to create a reliable, tight seal at the downpipe connection, helping prevent exhaust leaks on high-output builds.

Can Canadian customers shop in CAD?

Yes. Canadian customers pay and shop in CAD, helping avoid USD conversion and import headaches often associated with sourcing from American performance shops.