Hi everyone, I would like to change my exhaust system on my 2007 GS 1200 to have better performance. I'm not sure if Akrapovic is better as a Remus. Anyone have expeience with those 2 exhaust? Thank you
In all seriousness, if you want a bit more performance, leave the exhaust alone and richen the mixture with a pair of LC-1s from Innovate Motorsports. Or try a powercommander V. These boxers already get plenty of air through the engine. What they need and be fit from is 4-8% more fuel. The stock bikes are too lean and the exhaust won't change that. RB
Definitely Akrapovich, I put it one together with a BoosterPlug and I have to say the bike runs better...
There is this too. Hotrodding the GS http://www.advancedbikerblog.com/2011/03/fitting-remus-header-exhaust-down-pipes.html
Since you're asking about how to have "better performance", buy two of these, one for each O2 sensor at a total cost of $320. Install them set to an AFR of 13.8:1. You'll get more performance than any other straightforward modification. You're adding fuel to a too lean engine.
They're not like the poolside gizmo. This unit is a computer that manages a new Wideband O2 sensor. Think user adjustable fuel mixture for all operating modes. The LC-1 was designed for DIY racers but fits the Oilheads perfectly.
Do you really think you will be able to feel the 2-5% gain(at best)? Lots of people say they can, but I suspect it's all psycological and mostly they appreciate the difference in sound = Louder sounds faster. 3-4% is nothing. The electonic fuel management mods make a bigger difference, and you would want it with the exhaust anyway. Start there.
I wholeheartedly agree with you. Since you will want to boost the fueling if you change the exhaust, why not do that first, its half the cost. The problem on the 1200s is that a Powercommander V doesn't run the ECU closed loop program so you lose in Adaptation capability. That's a lot to give up. It's like you blinded it. I would get some help, interface two LC-1s, one for each stock O2 sensor and then see what I thought about the need for an exhaust (unless you like the looks or sounds, in which case just get it and don't worry about your performance losses). A secondary benefit to the fueling enhancement is that by leaving the intake and exhaust alone you keep from introducing errors in the VE (or fueling) tables due the the different tuning of the aftermarket parts.
Plus don't new pipes change where your hp kicks in by X amount of rpm up or down. So you put on a new pipe and the kick is either earlier or later which is different and therefore better.
The more money you spend the better you like it. Afterall, you're more invested in the sound at that point.
There are haters and dollar for dollar it's not a great value but the full system with a pc3 and a custom tune on the dyno opened my 08 up a lot. Major diff down low and the dyno runs showed it. Again, it's not a cheap addition but there is no question it does make a difference. I wonder how many people who say it does nothing but sound have ridden it both ways.
