The 04-07 STI piping kit uses 2.5" OD 304 Stainless Steel tubing. This ensures the highest level of durability. The pipes are 1 piece mandrel bent with no welds or joints to disrupt the flow. The ends of the pipes have beads so you won't have to worry about couplers coming off during a pull. We finish our pipes in a wrinkle black powder coat. We guarantee the best possible fitment which will save you precious time during install.

• 2.5" Mandrel Bent SS
• Powder Coated Wrinkle Black
• Industry Leading Fitment
• ETS Black Silicone Couplers 
• SS T-Bolt Clamps
• AIT Bung/Plug (No Sensor)
• BOV Flanges

Note: ETS Rotated Turbo Kit option does not come with turbo kit pipe

Note: Does not work with foglights

For a complete kit you can add the intercooler seen here.