The 10.5 hotside is a great mod for those of you that have a 03-04 Evo with a smaller 9.8cm^2 hotside. After installation you will notice improved top end power and flow. We highly recommend this modification for any 03-04 EVO owner that is looking to improve the power output of the 4G63.

TECH TIP: This works with the stock EVO turbo only. It will not work on aftermarket turbochargers.

Fits: Mitsubishi Lancer Evolution 8, 9

Part # 100001