STREET PERFORMANCE 2 - SP2 In Greddy Street Performance Version 2, or SP2, Greddy has the ultimate in show quality shine, superior flow and excellent sound quality. The full stainless steel SP2 has the same classic tuned straight-through design as the other Greddy exhausts with the added benefit of a high polished single walled SUS 304 oval muffler with SUS 430 end caps and a unique outer-curled oval Greddy slant tip. With applications for both turbo and normally aspirated cars, most SP2 follow the O.E. exhaust layout and offer some of the quietest exhaust notes of any high performance systems.