hey guys i know when i originally posted the pic of my bike everyone asked me what exhaust i had and i wasnt sure well i just finally found out that it is a GS specific exhaust from a company called predator as i thought it was a made to fit deal, if you are interested here it is and it sounds sweeeet. 

http://www.predatorexhaust.co.uk/unitrader/shop/product/SUZUKI-GS500-now-fit-s-all-models-TWIN-2-1-S-STEEL-BSI-E11-ROAD-SYSTEM/1173

I have a Predetor also , i had a nexxus before , but i prefered the Predetor

can you post a pic of your exhaust?  The link pic is very low res and it is difficult to see.

The web site says there is no need to rejet....has that been your experience or did you rejet?

Thanks

its not the best of pics but thats it sounds great, i wouldnt know about the rejet though as it came with the bike when i bought it.

I didnt rejet until i put a lunchbox on , then i just followed the instructions as a V+H , and it runs good