ISR Performance - Series II Full Titanium Single GT Exhaust - Nissan 240sx 89-94 S13 (IS-GTTi-S13)ISR Performance Series II Single GT exhaust is a Cat back exhaust system made of Full Titanium to ensure the lightest weight and quality. This Single exhaust gives you all the advantages of unrestricted flow to maximum horsepower while retaining a deep and aggressive exhaust tone. This Titanium Series II Single GT exhaust is the perfect combination for both naturally aspirated and forced induction applications. Features: Provides a deep and aggressive