Crucial Full 3" Impreza Midpipes

Full 3" mandrel bent piping with a flat flange on each end. No donut gasket here. These are two of the only midpipes on the market that are a full 3" diameter from end-to-end! The Crucial midpipes will bolt up to our (or most other brands') shorty downpipe and will replace the OEM midpipe/secondary pipe, which houses the final catalytic converter. Your full 3" catback bolts to the other end (look for one from Crucial coming soon!).

These will turn your shorty downpipe into a long downpipe, but will maintain the convenience of a modular system -- swap the racepipe in and out for track days, swap the catalytic converter back in in just minutes for street driving, or use the highflow pipe full-time without the raw fuel smells and noise of being catless with nearly no added restriction! Plus one can purchase and replace parts in stages, which is great for anyone who wants the highest possible quality while working with a tight budget, or maybe for our customers who drive aggressively off-road and are rough on undercar piping.

The Crucial highflow catalytic converter midpipe (pictured below) uses the highest quality metallic substrate catalytic converter available. Much more resistant to heat and vibration than ceramic units like the factory ones, while being more efficient and offering nearly no resistance to exhaust flow! Our highflow midpipe is full 304 stainless steel, including flanges, fully TIG welded, and full 3" mandrel bent. This pipe is absolutely gorgeous.

The Crucial racepipe (pictured below) employs full mandrel bent stainless piping and no catalytic converter for absolute maximum flow and light weight!

Fitment - MY02-05 WRX, MY04-06 WRX STi, Forester XT, and Saab 9-2x.

 * All Crucial Racing Systems parts are intended for off-road use only. These midpipes can never be used on emissions controlled vehicles and is absolutely not for highway use, as it removes or modifies an emissions control device. *