I don't think we're intending to frustrate you bro. Everyones entitled to their opinion. In terms of "un-tunable" I think it really depends on personal preference and the "want" for power. It's hard to compare an OEM NA car with one that is F.I. Any F.I. car will make more power per mod. Once the VVEL is tuned I think the Z will be able to make even more power, both NA and with those who choose to go the F.I. route. But other than Porsche (and BMW wit the E46 M3) I don't see many other cars with so much power out of the box from a 6-cyl engine. Also, the Z has been shown to make 40 whp gains with intake, exhaust, and "tune" (just to smooth out AFR). I have a very long daily commute to work, and even on the freeways I dont have much chance to open the car up. I don't have much use for anything faster than this, even though I will be doing some bolt-on mods.
It all comes down to personal preference. I don't think anyone's "hating" on the 135i. Different strokes for different folks.
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K&N // GTM // BERK
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