Blitz Nur Spec DT Exhaust System - Single Exit - 67636 - Impreza S-GT GH8Blitz Nur Spec DT Exhaust System Single Exit for Impreza S GT GH8 Part No: 67636 Model Specific Features: Nur Spec DT, 2 Piece exhaust system Polished SUS304 stainless steel 80mm bore pipwork 114. 3mm Single Tailpipe Noise level 91DB Impreza, S GT, GH8, EJ20T The design and construction of the Blitz Nur Spec Double Tube exhaust is second to none. They are engineered from SUS304 grade polished stainless steel, with computer controlled precision Tig