rkstonerock 1 Report post Posted October 6, 2016 I just bought a 2007 1100cc Sand Viper. It has the stock cast Manifold and stock muffler. I see that newer models came with headers. Anyone have any experience upgrading from cast Manifold to Headers? I care about low end torque the most.... Sent from my SM-N910V using Tapatalk Share this post Link to post Share on other sites
hfrick 2 Report post Posted October 9, 2016 my experience with the trooper 1100 is that the header gave it a little more upper rpm power,but I prefer the manifold with a muffler,as it seems to help with bottom end torque and throttle response...just my 3 cents Hardy Share this post Link to post Share on other sites
rkstonerock 1 Report post Posted October 9, 2016 I had heard that the stock manifold put out better low end torque...I guess the Chery motor needs the back pressure. Had read that it's good to upgrade the pipe from the manifold to the muffler to a 2"....Wonder if that will help or hurt the low end torque. ...? Sent from my SM-N910V using Tapatalk Share this post Link to post Share on other sites
