Quick view ISR ISR Performance GT Single Exhaust - 09+ Hyundai Genesis Coupe 2.0T ISR Performance GT Single Exhaust - 09+ Hyundai Genesis Coupe 2.0T This is a Race type Straight pipe exhaust system. Straight 3" diameter piping to a single 4.5" tips. This exhaust has a resonator but no mufflers. It is an awesome... $540.00 Add to Cart