stronbl

Please see my ad here for details: https://rennlist.com/forums/parts-ma...l#post12141518

Approx 15,600 miles on the heads and they are in great condition. Fits 997-2 Carrera S and 4S with 9A1 3.8L, non-turbo engine.

I am selling my used 997-2 cylinder heads, both banks cylinders 1-3 & 4-6 for $2000 or best offer. Pics in my ad.

Please PM me if interested. I will reply to all offers.

Bijan

Soooo ... I am interested on why you took them off ?

stronbl

I replaced them with X51 cylinder heads.

Bijan

Thanks I should have guessed 😊
How much is the X51 kit

nwGTS

$12,900 w/PSE
$11,900 w/o PSE
http://www.suncoastparts.com/product/997G2X51.html

Before installation...

stronbl

Bump ... lower price to $2000 / pair or make an offer.

Mumbles

Howz the difference in performance now the heads have been changed ?....worth doing it ?

stronbl

I did it for the track and to have a bit more confidence in minimizing engine wear & tear (also a good chance to open things up and make sure everything was looking good ... it was). There is a slight feel of improvement at the high end rpm's - slightly more torquey. Low end, almost no change that I can tell. If Porsche hadn't significantly dropped the price recently I'd probably not do it. But I do like knowing that the 20 - 30 hp increase is mechanical and not a "flash" of the DME (had to have the DME re-coded due to powerkit parameters with the PIWIS system). And I do have that way cool carbon fiber air box with the "Porsche Exclusive Powerkit" logo.

Mumbles

Thanks for that