As with all of their Exhaust products, this 2001-06 BMW E46 M3 Un-Resonated Straight Pipe Section 1 is made from the same mandrel bent Polished T-304 Stainless Steel with CNC Machined Stainless Steel Flanges and feature a Limited Lifetime Warranty. It does not include  bungs, tabs, or brackets. If you love the “Rasp” The S54 Motor creates this is the Section 1 for you! No restrictions just straight piping for the most sound and power. weight 12lbs and ID of piping is 60mm or 2.36″. Made in the USA

Note: Current lead time for Section 1 un-resonated  is 1 to 2 weeks