Sale Quick view IAG Performance IAG Coolant Expansion Tank For 02-07 Subaru WRX, 04-07 STI Availability: Usually Ships in 24 to 72 Hours (1) $209.99 $178.49 The IAG Performance custom aluminum coolant expansion tank is designed for car builders seeking a race like engine bay for their 2004-07 Subaru WRX or STI. By relocating the coolant expansion tank from the intake manifold to the passenger side front... Choose Options Choose Options Add to Wish List Add to My Wish List Create New Wish List