dutch7 wrote:would be good to test out if they actually fit. I just can't justify spending a heap of money on a couple of replacement mufflers just for the sound a this stage
You can certainly give it a go considering they are quite cheap. You never know, it could be a hidden gem! Whatever the case, please do provide sound clips and pics if you do decide to go ahead with purchasing a set.
Otherwise your other options are either buying 2nd hand (perhaps Import Monster?) or just dropping by your local muffler shop and having them custom make you a set. Should only set you back around the $500 mark.
Although the 5-10 horsepower increase is quite appealing!

LOL! That's all marketing hype. Just like those 'mod chips' they sell on eBay for $50 that supposed increase your power by 20-30 hp!