I got the bug again.

Did a search and I'm amazed more information isn't available on these. What sort of gains could one expect from this mod? I already have the NW duals so I'd like to get a feel for if the mod is worth it or not. Looking for a 5-10 HP advantage over stock manifolds.

SRT6 / SLK32 / C32 Tweaked Stock Intake Manifolds

Claim is 255-260cfm @ 28 In. of H2O for 1 manifold, stock. Compare this to the tweaked manifold at 330 cfm. They also have new better flowing manifolds (about 485 cfm each) but for 2x the price. Doubtful I could justify the $$$ for this one, but may do so for the tweaked stockers if the performance gain was worth it.

My guess is there's a bit of marketing fluff on the high end manifolds... I believe the airflow claims but we all know the engine can only suck up so much air, 330 vs 485 cfm looks great but if engine can flow only at 300 cfm the 330's will obviously suffice.

Also, is this mod dependent on bigger headers, or would I see an improvement regardless?

Thoughts?