By installing the Mishimoto downpipe, the exhaust system is able to breathe easier, providing a significant increase in horsepower and torque when tuned. Above all, this Mishimoto downpipe provides a significant torque improvement in the low end and across the entire power band. The Mishimoto downpipe provided an extremely aggressive exhaust tone under acceleration and boost, giving you that aggressive tone you have been looking for! The engineers at Mishimoto designed their downpipe with precision TIG-welded 304 stainless steel. This allows uninterrupted exhaust flow. To customize the downpipe even further, it is offered in either a catted or catless version. Because the engineers know that owners commonly like to add wideband O2 gauges, they included an additional O2 sensor bung and plug in an ideal location for aftermarket wideband sensors! To top it off, the Mishimoto downpipe includes new turbine housing studs and nuts (which commonly strip), a new turbo outlet gasket, a new flange gasket, and all stainless steel hardware, so you don‚Äö√Ñ√¥t have to worry about rust on your hardware. Like all of our parts, this downpipe comes with the Mishimoto Lifetime Warranty you know and trust.