Already had 200 cell cats. Added rear silencer and headers. I went for the quietest muffler. Sound is clearly different, less raspy and more pleasing to my ear. Build quality great. Not a lot of room down there but headers fit well. Went down 1 size in pulley also, so should be pushing 600 HP to the rear wheels.
A+ to Stu and the team at VelocityAP

 

Good to hear that your supercharger is still doing so well that you're upping the ante! Looking forward to seeing some dyno results with the new setup compared to the old

 

Thank-you sir. Best customer ever!!!!!

The X-Pipe silencer has a really nice note to it, especially when you're running sport cats, it helps round out the sound.

Interested to see if our theory about producing the same or more HP with less boost was true?

 

Are the X-pipes still in prototyping? I don't see them on the VelocityAP website.

 

Hey Stu.. what is the power pack for the V12S?

What is the difference between your pipes and ECU tune and the quicksilver and Tune?

 

X-Pipe Silencer - we make the silencers in two configurations, one with an X-pipe and one without

 

The physical fitment of all the parts is the same on the V12S as it is on the V12V, so the kit is the same: http://www.velocityap.com/Aston-DB9-...pnoexhaust.htm

This kit has produced 51BHP on the 565BHP Vanquish with the same powertrain so I would expect similar results on the V12VS, should be around 616BHP. We haven't done a V12VS yet, so there might be a bit of tweaking to the software side once the install was done.

As far as difference, I would have said lower cost so better value for money on our stuff, however to the best of my knowledge Quicksilver no longer offers V12 manifolds/cats. I was told by someone that they pulled the product from their line and they aren't on the QS website anymore. Not sure.