i have a set of Work Rs RED wheel nuts for sale
one nut is missing
they are in perfect condition and only been on car for less than 2 weeks, comes with lock nuts and lock nut tool
located in sydney and can post but buyer pays postage
$150
i have the oval one and its pretty quiet and looks good
they seem like a very quality muffler
hope this helps
oh and this is on r33 with 3 "catback hi flow metal cat and split dump pipe
pioneers are very well knows to blow "pico" and make whining noise
i had issues with mine and it drove me insane then i put a filter on acc side and it stopped it
will take some pics to make it easier and hope this can fix your problem as well