COTM Feb 2012
Car: Aston V12 Vantage S
Join Date: 9th January 2008
Thanked 319 Times in 282 Posts
The Milltek made gains throughout the powerband when I tested mine, 3-5bhp. I felt a gain from the exhaust manifold (I had Tegiwa) like others said although the best gain i have to say was introducing the Mugen intake with scoops, the Tegiwa enclosed system would perform similar.
If youre after further gains, the RRC intake manifold gave really good top end gains and going further some of TDI's stage 2 cams will make the Type R fly!