When you used the term "such a small area" I thought you meant how it fit as opposed to how it works. Sorry. Actually, I put the K&N drop in's first and then the tubes. I really can't discern much gain, but I do think that it sounds better than the stock tubes. I don't know if that is because of the tubes or the drop in's however. I have a Stillen CBE that really ramps up the sound anyway so it's hard to tell if it really made much difference. As others have stated, they dino'd the drop in's at a 6hp gain, and I would imagine that the tubes may add another 1 or 2. They are quite smooth where the stock tubes were not.
AZ
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AZ Roadster
'09 Base|Chicane Yellow|TSW Nurburgrings|Stillen CBE|Eclipse AVN726E In Dash DVD/NAV|Clear Bra|H&R Spacers 15/20|Hankook Ventus V-12's 275/35 & 305/30
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