GrimmSpeed Uppipe 3-BOLT INLET - WRX STI LGT FXT

A top-of-the-line Up-Pipe made to be abused! Adding a well-designed, well-built aftermarket up pipe is one of the first things you should do to your Subaru. Our ultimate goal was to make the best up pipe the aftermarket has to offer. The flex joint is 321 Stainless Steel w/ an Interlocking Liner and the tubing is a heavy-duty 14 Gauge 304 Stainless Steel (competitors use thinner 16 GA) that has been precisely CNC Mandrel Bent; our flanges are made out of 1/2" 304 Stainless Steel and are put through a tumbling process to smooth out the edges. The pipe is hand-welded on the inside of the flange, in addition to the outside, allowing for added strength to the finished product and a nice mating surface with optimal flow through the pipe.