VALVE GUIDE SET 4B11 (TA309A-MT02A) 1555 One of the first things

One of the first things to note about the OE exhaust manifold are the several points where flow is decreased due to a neckdown in piping diameter

Included software tested at various road courses

The OEM duct only draws air from behind the front grill and is very shallow over the slam panel

Constructed with premium aerospace quality USA T321 stainless steel flex bellows

2012 Scion tC 2

VALVE GUIDE SET 4B11 (TA309A-MT02A) 1555 One of the first thingsWe chose to use Phosphor Bronze (Cn Sn P alloy) to make our Valve Guides, for its highly tensile and superior heat transferring ability, which is vital in high power and high RPM outputting engines. Since race engines these days require more power at higher RPM use , these engines now experience more extreme heat conditions. These conditions will increase the deterioration rate on these valve train related components. The Phosphor Bronze material has