hmmm I find the Stillen HFC/CBE to be mellow when not under acceleration but like you said its all subjective.
Best sounding engine IMH(but always right)O is the L28. While the VQ37 sounds more "exotic" and I do love the sound but its still a three cylinder in stereo ;P
L28 pure eargasim...
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'09 370Z - '93 300ZX Vert - '83 280ZX - '83 280ZXT -'81 280ZXT stroker - '72 240Z - Stillen CBE, HFC, G3, Grounding Kit, Sways // Swift Spring // H&R 15mm // 5% Tint // Clear Bra // 
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