Upgrade your BMW N54 downpipe installation with a complete, high-quality install kit designed for a secure fit and a reliable seal. This kit includes genuine OEM BMW copper nuts, zinc-coated M8 x 1.25 bolts, split lock washers, and aftermarket flange gaskets to give you everything needed for a proper downpipe-to-exhaust connection.

Whether you’re installing aftermarket downpipes on your 335i, 135i, 535i, 1M, or other N54-powered BMW, this kit helps make the job cleaner, easier, and more dependable. The OEM BMW copper nuts deliver factory-style clamping performance, while the zinc-coated hardware helps resist corrosion and the split lock washers add extra holding strength. The included flange gaskets help reduce the chance of exhaust leaks and make this a more complete solution than hardware-only kits.

Built for enthusiasts who want a proper install without missing parts, this kit is ideal for replacement, maintenance, or new aftermarket downpipe installs. If you’re looking for a complete BMW N54 downpipe hardware kit, this is the all-in-one solution for a tighter, cleaner, more professional install.

Features:

• Complete BMW N54 downpipe install kit.

• Includes genuine OEM BMW copper nuts.

• Includes zinc-coated M8 x 1.25 bolts.

• Includes split lock washers for added security.

• Includes aftermarket flange gaskets.

• Designed for a secure, leak-resistant downpipe-to-exhaust installation.

• Ideal for aftermarket downpipes and replacement hardware.

• Great for BMW N54 performance and maintenance builds.

What’s Included:

• 2 flange gaskets.

• 4 genuine OEM BMW copper nuts.

• 4 zinc-coated M8 x 1.25 bolts.

• 4 split lock washers.

Fitment:

• BMW N54 downpipe-to-exhaust applications.

• Common fitment for BMW 135i, 335i, 535i, 1M, and other N54-equipped models using compatible aftermarket downpipes.