GT SPEC stainless Steel Uppipe. Includes EGT bung for stock sensor. This uppipe has one of the biggest diameters on the market. Provides excellent mid range to high end horse power. A must for an upgraded turbo.

Uppipe to turbo diameter: 2"
Uppipe to manifold diameter: 2.3"

Fits: GDA04 (04 WRX), GDA02 (02-03 Impreza Sedan), GDBC (04 STI), GGA (02+ Wagon)