This ETS Mitsubishi Evo X Intercooler Kit is perfect for car enthusiasts who own a GSR, MR, or Ralliart (with an upgraded Evo X Upper Pipe). Use it when you're looking to boost your car's power and performance, whether it's for daily driving or hitting the track. The kit comes with different bar and plate core sizes (20x12x3.0, 20x12x3.5, 20x12x4.0) to suit your power needs. It has been pressure - checked at 35psi and uses high - quality 4 - ply couplers and stainless - steel t - bolt clamps. All mounting hardware is included, and it has a bolt - on design that doesn't require any cutting or modification to your car.