Quick view ETS | sku: 100-10-EXH-101 ETS GESI Test Pipe For Mitsubishi Evo X The ETS Evolution X GESI Test Pipe is a direct replacement of the factory catalytic pipe. This has been dyno tested for a 10-15 whp increase over the factory catalytic pipe. Works with factory downpipe and factory exhaust system as well as any other... $880.00 Add to Cart Compare