Xpower Back Boxes - Buy, or Swap for my Zero Loud Quads (Saloon)

[Dashnine]

Hi,

I'm interested in your Zeros, but sadly have no XPowers to offer!

But I'm puzzled by the Zero "Loud Quads" description. I've read what I can find on the forum and listened on YouTube about the various exhausts and thought I had it all sorted, and my assumption was the Zero quads were quieter than the (earlier?) Zero ovals and the Xpowers (also ovals).

I want some quads louder than the standard, but still keeping within trackday limits (usually 105dB). I measured some Tony Banks quads on a friends 260 yesterday (Tony must be taking some time off playing keyboards for Genesis) and they were 92dB @ 4000rpm (with nothing clever, just an iPhone app). I'd say they were where I thought the Zero quads would be in terms of loudness.

Have I got the hierarchy of loudness wrong? I generally thought it was:

Standard
Zero Quads
Zero Ovals
XPower Ovals
Straight throughs!

Thanks!

[V8 Martin]

You know, I?m not sure if ?Loud Quads? are a thing.. chap I bought my car from I believe bought them new, & he described them as such. They are definitely louder than standard and sound lovely, but not as aggressive to my ear as Xpowers. Would easily pass track day limits I would think, as in the past I?ve had no issue on various tracks running Xpowers. You can I think still buy new from Zero, so maybe give them a call.