Originally Posted by wutdadilyo
Hey Ben have u tried matting the Greddy SP catback to a different downpipe? I wanted to get a catted dp to reduce notice levels for my wife but maintain flow
No but I have bolted it up with a donut adapter and with the flat flange and both ways work. So with any reasonably good fitting downpipe you should be fine. FYI - I found there to be very little sound difference between catted and catless.