http://cgi.ebay.com.au/Powerpro-TWIN-EEVC-fully-adjustable-performance-exhaust_W0QQitemZ230101506643QQihZ013QQcategoryZ13 0632QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Found a link to that in the For Sale Ebay thread, now gone, but I'm wondering if anyone has actually looked into these things. The way they operate is through a variable vane that limits airflow to the muffler, which I assume dampens vibration. This doesn't really make sense, as vibration will still travel through, all it will do is increase backpressure on the engine, and divert more exhaust through the other free flowing resonator, making it louder... That's what I managed to come up with while at work when considering this strange thing. There is a single pipe variant too.

Your thoughts?

Its a bit like a xforce varex but I cant really see how this one is going to work, as this one only blocks flow to one muffler which look identical to teh other one. If one had a baffle or was more restrictive I would understand.

sounds like a diesel exhaust brake :P

http://cgi.ebay.com.au/Powerpro-TWIN-EEVC-fully-adjustable-performance-exhaust_W0QQitemZ230101506643QQihZ013QQcategoryZ13 0632QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Found a link to that in the For Sale Ebay thread, now gone, but I'm wondering if anyone has actually looked into these things. The way they operate is through a variable vane that limits airflow to the muffler, which I assume dampens vibration. This doesn't really make sense, as vibration will still travel through, all it will do is increase backpressure on the engine, and divert more exhaust through the other free flowing resonator, making it louder... That's what I managed to come up with while at work when considering this strange thing. There is a single pipe variant too.

Your thoughts?

Sorry mate, I posted it and decided to delete it afterwards...



Here's the topic from autospeed with similar product. http://autospeed.drive.com.au/cms/article.html?&A=0883

Sorry mate, I posted it and decided to delete it afterwards...



Here's the topic from autospeed with similar product. http://autospeed.drive.com.au/cms/article.html?&A=0883
Cheers mate, that link was a good read. I think if I were to buy one of these, I'd have a hotdog resonator in the mix too... Much potential! I got sick of the eternal droning of my old cannon on my last car so this may be the solution.