2009 GSXR 600
I bought a k8 GSXR 600 that has a Yoshimura exhaust and the cat removed. Bike runs fine but gives the odd backfire when shutting off the throttle at high rpm. I contacted the previous owner a few days ago to see if he had the ecu flashed or a tune up done since the exhaust and decat was done. I've just had a reply back from him saying he didn't as he liked the crackling and popping the exhaust done so he didn't bother. I don't mind it either but my question is am I hurting the bike by not getting it tuned? I've had a quote for an ECU tune for €450 so I can get it done in a couple of weeks if really necessary. Any thoughts?