Simoni Racing Universal Exhaust Tail Pipe Trim, Stainless Steel Weld-On (TRX16). The Universal Exhaust Tips from Simoni Racing are high-quality exhaust tips that bolt or weld on to your existing exhaust pipework. Universal Exhaust Tailpipe Trims, Choice Of Weld Or Bolt-on Fittings, High Quality Stainless Steel. Available in a range of different sizes and designs, there is a tailpipe to suit the style you want to create. Type: TRX16 Rectangular Slant Cut, Inlet: 57mm, Length: 240mm, Outlet: 140x80mm, Fitting: Weld, Colour: Silver.