RVNG Raceworks - 5" Fatboy Downpipe for BMW Gen 1 B58 / Gen 2 B58

With the Rvng 5" downpipes back pressure is significantly reduced by eliminating the restrictive catalytic converter in the factory downpipe which results in faster spool, an increase in power & a more aggressive exhaust note. Our downpipe features a full 5″ stainless steel design as well as a CNC 304 grade stainless steel flange that offers a smooth transition from the turbo to the mid pipes. All Rvng downpipes are hand crafted from SS304 grade stainless steel and include a lifetime warranty as well as our “No Hassle” satisfaction guarantee (includes fitment)

• Made from hand crafted, tig welded SS304 grade stainless steel.
• Cnc tube bended for a Smooth radius bends to decrease turbulence and increase flow as well as a perfect fit guaranteed 
• CNC SS304 Stainless Steel Flanges.
• Gains anywhere from 15whp-20whp without tune and up to 25-30whp with tune.
• RVNG Lifetime Warranty