This hardware kit is assembled specifically for connecting E46 M3 section 2 (Stock OEM or similar aftermarket) to aftermarket rear mufflers (Section 3). The OEM hardware holding Section 2 to 3 are not useful after being installed on the OEM system for 20+ years.
This hardware will NOT fit OEM Section 3 rear mufflers.
This kit includes four (4) M8 x 55mm, Grade 10.9, Yellow-Zinc plated bolts and four (4) M8 copper, flanged locknuts. The yellow-zinc plated hardware is designed to resist corrosion while the copper, flanged locknuts are spec'd to withstand exhaust temperatures.
Sold as a complete kit of 4 bolts and 4 nuts.
