ARK Grip vs Top Speed Pro 1

horty24

So here looks like two very similar exhaust with very different price. I'm looking to see if anyone here has the top speed and can give some sound bites. I've been searching for a month now on an economical exhaust that's not too loud. So I crossed out short tails and pretty much any axle back. I'm looking at mostly Top Speed, M2, Manzo, Beluga which seem to be all the same with different branding. This Top Speed Pro 1 Track Spec Catback Exhaust Systems 370Z Z34 VQ37VHR 09 13 | eBay looks very interesting because it looks like the Ark which is the exact sound in looking for and has good gains. Thoughts, comments on just those exhaust. I really like the M2 TI look one too but heard is Pretty loud inside cabin. Don't like that either.

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2000 Celica gts: daily beater
2007 GMC Acadia: family ship
2009 370Z: sunny day delight