V6 2005/08, 7 hp improvement, 12 ft lb gain, 123% cfm gain
gain up to 10% better fuel economy

5.7 & 6.1 V8, 2005/08, 10 HP Improvement, 16 ft lb gain, 66% cfm gain
gain up to 10% better fuel economy

2001/06, 4 HP Improvement, 5 ft lb gain, 99% cfm gain
gain up to 10% better fuel economy

3.5l, 3.7l - 2007/08, 5 HP Improvement, 6 ft lb gain, 97% cfm gain
Expect a 10% Gain in your fuel Economy

Subaru WRX and STI
MY02-06
83%cfm gain, 15 HP gain, 83 ftlb gain
gain up to 10% better fuel economy