the black one is a old dynoport, you had to drill holes in bellypan for it to fit, that's what the plate is for, they are LOUD! and as everyone knows the bender can is the bottom one, sounds like a indy car. None of them make power more power over stock, they just make a lot more noise and you do lose a couple pounds of stationary weight with them. The stock muffler as big and heavy as it is works quite well. The exhaust system on a srx(stock) was so well designed it was very hard to improve upon. that's why you wont find much to choose from as far as replacement triple pipes that make more power then stock. Aaen built a set but they save weight but no power gain. The bender big bore pipes (also made by dynoport) did yield power gains on a highly modded 700 engine, they even had a set of hi rpm race pipes that worked good. The hauck race pipes were nothing more then ski doo 600 blanks made to fit a srx chassis, they lost torque!
