Recently bought a race twin exhaust off David Gentleman and thought I'd share my opinion for your delectation!
First impressions; it's loud! But that's a good thing!
At tickover it makes, I think, a nice burbling sound and at full throttle, sounds like a race car! At a cruise, on part throttle, it's not too obtrusive either. It's not for the shy or retiring though! Driving through town it seems to turn everyones head and scares small children! Also, it's not a technical analysis, but I reckon throttle response is improved, turbo lag is reduced and possibly I've even got an extra horse, or two!
This is not to curry favour with D.G. but I'm pleased with it! Not sure what the neighbours opinion is yet though!
Anyone else got one?
I'm going to try and video it at the weekend, if I have time, so you can see and hear it in action!