HKC-speed.com Posted November 30, 2019 Share Posted November 30, 2019 (edited) SOLD These are a 1 year only head from the 07 STI. Best flowing single AVCS heads available. Heads are completely stock and come complete with camshafts. 6000 miles on heads since IAG refreshed the heads. These heads were removed for IAG Stage 5 heads. $1500 Edited January 16, 2020 by HKC-speed.com Link to comment Share on other sites More sharing options...
SonoftheBread Posted December 5, 2019 Share Posted December 5, 2019 Interested. Do these work on an '05 without modification? Link to comment Share on other sites More sharing options...
HKC-speed.com Posted December 5, 2019 Author Share Posted December 5, 2019 Interested. Do these work on an '05 without modification? They are a direct swap with zero modifications. Due to how much more air they flow, I'd get a tune. Link to comment Share on other sites More sharing options...
SonoftheBread Posted December 6, 2019 Share Posted December 6, 2019 Yes of course. I'm rebuilding to 400hp after snapping a timing belt, so I need a new top end. Link to comment Share on other sites More sharing options...
HKC-speed.com Posted December 7, 2019 Author Share Posted December 7, 2019 Yes of course. I'm rebuilding to 400hp after snapping a timing belt, so I need a new top end. You have a PM Link to comment Share on other sites More sharing options...
Mortal2None Posted December 11, 2019 Share Posted December 11, 2019 Just curious, How much of a difference did the stg 5 heads make vs these on the car you had them on? Are these sold yet? Link to comment Share on other sites More sharing options...
HKC-speed.com Posted December 11, 2019 Author Share Posted December 11, 2019 Just curious, How much of a difference did the stg 5 heads make vs these on the car you had them on? Are these sold yet? To scale the differences is damn near impossible because the changes are so drastic in the entire powerband. For 7k you get a race car worthy head. The better question is D25 vs V25B. Top end is better and pairs well with a larger turbo. The cams aren't rowdy but are slightly more aggressive than stock lgt cams. V25b is ideal for that quick spooling 425-450 power car. Not sold, yet. Link to comment Share on other sites More sharing options...
Gabo Posted December 11, 2019 Share Posted December 11, 2019 To scale the differences is damn near impossible because the changes are so drastic in the entire powerband. For 7k you get a race car worthy head. The better question is D25 vs V25B. Top end is better and pairs well with a larger turbo. The cams aren't rowdy but are slightly more aggressive than stock lgt cams. V25b is ideal for that quick spooling 425-450 power car. Not sold, yet. And here I am with a set of V25B heads that I bought for my build originally. I ended up just reusing the D25 and thought I could resell the V25B's and recoup some of my investment. Two years later and now I'm thinking I might as well keep them for my next build. Sorry for dumping on your thread.... Free bump for you sir! Link to comment Share on other sites More sharing options...
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