Stock exhaust uses baffle deflect plates, slip on is straight through with only fiberglass packing for muffling.audi1031 said:I always wondered how a stock exhaust header with a slip on would have the bike flow more exhaust if it is still restricted by the header being smaller?
I think i know the answer but want to see if anyone else know
A high mount does not cost you much at all, Trust me, I have seen side by side tests, and have not been able to tell a significant difference. On the race track with PERFECT FI tuning, yes maybe a bit, but for street riding you will NEVER know, and MOST tuners cant tune perfectly, so there will be negligable differnces there too.Those high mounts cost you power. The extra curve and length make you lose. The hindle is just too loud and they look like shit.
I know I am coming in a little late on this thread, but this comment bothers me. I have been working with engines for quite some time and know for a fact that all the new engines that come from the factory are way too lean. So if you proceed to open the flow up even more by adding a full exhaust system and more flowing air filter you will lean your engine out even more. Hence you will really not see any substantual power gains. But if you get the FI properly mapped by adding something like a Power Commander or carbs properly jetted so that you get the Air/Fuel ratio more inline with what and engine requires, you will see a definate increase in power. It is also highly recommend to get your system remapped/rejetted if you do open the flow through the engine.wickmaster said:You do not need jetting. You have fuel injection. You could do a pipe if in your budget. A full exhaust would be the best but they are expensive. A slip on would be the best. A filter would help out a little too. You really dont need to re-map for those simple things. Some people will tell you that if you change the pipe and filter you have to re-map with a power commander. I find that to be un nessasary bullshit. Expensive too. The main gain you will achieve from a pipe is sound. A filter combined with a pipe will give you noticable gains. I would reccomend a yosh pipe and a bmc filter.