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Anyone know the specs on the Sportec turbos?? they are over 2X's more expensive than a standard K04, other than their name on it what are the internal differences. Would love to know, for twice the money are there any notable perf. improvements of these turbos versus a standard K04. Thanks in...

are the same I know, but are the exhaust valves on the 2.6/2.8 EURO heads the same. I thought they were all the same, thought they had the same part number but now someone tells me the turbo cars run sodium filled exhaust valves while the normally aspirated heads like the 2.6 and 2.8 DO NOT run...

OK, so the cam timing is changed to increase torque on the 2.7T. From what I have been able to gather, the 2.8 heads mimic the rs4 heads in cam profile, intake port and exhaust port. I thought I read somewhere that the exhaust valves on the 2.8 heads were slightly larger but the exhaust valves...

Looking into adding upper RS intake pieces like Mani/TB and cams and while the RS4 heads are not worth the cost wanted to know if anyone has had any success with adding 2.8 heads ? From what I heard from one person everything should bolt up fine with the rs4 parts as well as the 2.8 heads have...

Trying to find a few other fellow S4 owners who have the O.CT kit but there doesn't seem to be any ?? What gives ? Would love to talk with anyone who has gone to a stage 6 S4 kit, larger head gaskets, RS4 turbo's, MAF etc etc etc. Have an issue with Throttle cut at 6200 rpms and would like to...