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Message: <blockquote data-quote="Leo 5.0" data-source="post: 1268878" data-attributes="member: 19276">I know this thread is old, but I want to clarify something. If for nothing else than personal knowledge.But in essence, all things considered...Would the PI intake, NPI heads, with some NPI Cams, your typical bolt ons, and longtubes, would be close if not the same to a full PI swap minus the bolt ons and exhaust?My reasoning is this, since the NPIs suffer more on the exhaust side, long tubes would be especially helpful here no?And while the PI heads bump compression, if you take that out of the equation, then the numbers should be close no?So in theory, PI intake, even regular PI cams, your bolt ons, and full exhaust with a good tune, should be able to net 250-260 range, as opposed to the PI heads and the compression where 270+ seems standard for the exact same mods?Because I had a thought.Minus the heads, but adding good NPI cams, shouldn't that balance out for a bit better than stock PI figures, while keeping a lower, more boost friendly CR?Granted at the point of cams, you may as well do the headswap, but not everyone will want to do that. Sorry for reviving a dead thread, but it fits the topic and my insomnia is getting to me, so I've been up all night reading, and am curious if I am off ground.But I would think minus the bump for compression, 250-260 would be attainable yes?Seeing as many without aftermarket cams with the PI swap and not even long tubes hit around 270, I am basing this off the OP statement, and many other comments saying most of our gain from the heads is the compression bump.Not dismissing the PI heads, but keeping on the subject of not using them for whatever reason someone may have.Ok, I asked.Again sorry, haha reading all night makes me curious.</blockquote>