Power Pulse MX-5 Exhaust - If you're like most MX-5 enthusiasts, one of the first upgrades that you're likely to consider for your car is an upgraded exhaust system If youre like most MX5 enthusiasts, one of the first upgrades that you're likely to consider for your car is an upgraded exhaust system. Our customers believe this to be by far the best on the market in terms of the superb build quality and the quiet exhaust tone that it gives, i.e. not too loud that the noise drones in the cabin, but loud enough to hear the true sound of the engine when you want to plus you will see horse power and torque gains to make your MX5 even more fun to drive.