ISR Performance MB SE Type -E Dual Tip Exhaust 1989-1994 Nissan 240SX (S13)ISR MB SE Type E Dual Tip Exhaust Nissan 240sx 89 94 S13 The ISR Performance MBSE line of exhausts are designed to provide much greater flow than your stock exhaust system while still maintaining a relatively subdued sound and look. If you are looking for increased performance for your vehicle without catching unwanted attention, the MBSE series of exhaust are just what you are looking for! The Type E MBSE will feature a large resonator box in the mid