Quote:
Originally Posted by lgk
depends on what ends up being the bottleneck in the system. could be any part along the exhaust.
the good thing about full exhausts, is that everything is engineered to work together.
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Well put and exactly the way it works.
When we tested several different slip-on only designs on the 250r, we simply never got more .3 - .6 (yes, tenths...) of a hp improvement, henceforth, we never offered a slip-on. We actually got better improvement with simply rejetting and keeping the oem muffler. When our FI programmer arrives within the next week or so for the 300, we'll begin our final testing of all the prototypes we've designed.
We will also test with some slip-on designs as well. The oem muffler on the 300 actually works very well within the design limitations of the oem headpipe, sound levels and A/F curve.