2004-21 Subaru WRX STi | 02-14 WRX Impreza T-304 Up-Pipe 

COMPATIBILITY: 2015-2021 Subaru WRX STi

MATERIAL: T-304 Stainless Steel

SURFACE FINISH: Anodized Silver | Blue Burnt Tips

TYPE: Muffler Dual Delete Axle Back

EXIT TYPE: Quad Tips

TIP WALL TYPE: Double Wall Tip

TIP SHAPE: Round Angle Cut

EXHAUST TIP DIAMETER: 4 Inches

EXHAUST PIPE DIAMETER: 2.5 Inches

PERFORMACNE:

• Flow Bench Results vs. OEM at 28" WC
• OEM Catless - 244.6 CFM
• OEM Catted - 164.7 CFM
• Extreme Online Store - 292.6 CFM

PACKAGE INCLUDED:

A Pair of Subaru WRX STi Muffler Delete Axle-Back Quad Burnt Tips Exhaust, 2 Pair of Hangers, 1 Pair of Gasket, 1 Bag of Hardware

The Extreme Online Store Up-Pipe has been made with beefy local raw materials. The flex joint is 321 Stainless Steel w/ an Interlocking Liner and tubing is a heavy-duty 14 Gauge 304 Stainless Steel that has been CNC Mandrel Bent and finished up with a nice brushed finish. Their flanges are made out of 1/2" 304 Stainless Steel and are fully machined on all sides. The insides of their flanges are "cut-back" to allow the pipe to rest inside the flange which gives you a nice flush mating surface thus allowing optimal flow through the pipe. 

Professional Installation is Recommended