Valve Set Supertech 1.8T 20V Intake Valve SetThis is for a full set of 12 Supertech performance intake valves! These are a great starting point for any 1. 8t cylinder head build. High quality forged stainless valves are black nitrated for maximum hardness and smoothness. For the price, these are an excellent replacement for stock valves. Single groove keeper setups are also available for extremely high rpm usage. This setup grips the actual shaft of the valve, rather then relying on the material

Our intake temperature testing found no significant difference from the factory intake during both sustained cruise and full throttle operation

For mounts that will sustain the latter abusive scenarios

In addition to being one of the best bang for the buck performance upgrades for A4 owners

Available for factory turbo only (K03/K04 or Eliminator kits)

This kit is not compatible with European models that have a charcoal canister in front of the engine mount

US codes CPLA and CPPA)

The included ARP 2000 bolts need to be tightened and measured to

Includes two (2) 90 degree Turndown Tips for track use

there is no better option for the GT4 owner seeking maximum power and performance while retaining catalysts

Octane: 93 Octane / 98 Ron gas

minimal noise characteristics

AWE sound engineers carefully studied the tones of the multiple prototype 991TT systems at various RPMs