Why ISR Resonated Test Pipes Are the Move for Your Exhaust
If you've been scouring the forums looking for a way to wake up your VQ or KA engine without making it sound like a swarm of angry bees, you've probably seen a lot of people mentioning isr resonated test pipes. It's one of those parts that almost every 350Z, 370Z, or 240SX owner considers at some point because, let's be honest, the factory catalytic converters are huge, heavy, and they do a great job of sucking the soul out of your exhaust note. ...