Hi All, new to this page so forgive the lack of terminology! I have a 2010 600 Honda hornet, and today installed the straight through pipes to compliment the Mivv can on the back. All is good and it sounds great, but I seem to have developed a noise at low revs what sounds like tappets in my old escort! Anyone got any words of advice of where I should start troubleshooting? Everything is done up nice n tight, I even managed not to lose any nuts and bolts in the process! Any advice is welcome, thanks Chris