A pair of TIG welded, direct fit, exquisite high flow catalytic converters to fit Mercedes-Benz G63 AMG. Ideally paired with our sports sound valvetronic silencers. These high flow catalytic converters will give the G63 AMG some additional power and a noise worthier of its V8 engine. Direct fit replacement that can be fitted to OE or paired with other Topgear products. Guaranteed extra performance!