The test pipes first function is to improve engine performance and increase horsepower by significantly reducing exhaust flow restrictions. Made from mandrel-bent aircraft quality 304 stainless steel and precision TIG welded, includes a 2 bolt and a 3 bolt flange as well as being a 3 piece design that you can adjust 360 degrees. Finally it has an extra O2 sensor port for when you need to do secondary oxygen sensor analysis.

The second function of the K-swap test pipe is to allow you to easily adapt your new Kseries engine with your exhaust system. This is often one of the overlooked parts when performing a swap. You get the entire swaped bolted in and ready to go and then you realize you need to take a trip to the fabrication or local muffler shop. This is always a pain because these guys have no idea whats going on. This pipe will simplify the entire process and in some cases you can knock out the entire job where your installing the engine.

This piece will likely save you a few hours of dealing with your local muffler shop as well as the cash they make you pony up for a "custom job"