direct pipe??...

in my previous post on head work i did mentioned of lacking some throttle response as well as mid-high rpm gain... in the midst of complication to get things right, i did something stupid... haha...



yeap... 1 direct stainless steel pipe to replace the stuffy WISE muffler... end result, very empty and torque-less low end... mid-high rpm was orgasmic, especially when the needle swing pass 4000 rpm... the noise??... wonderful and at the same time, nuisance... haha... lifting off the throttle at high revs can result in misfiring "popping" sound...

used it for 2 days, i swapped back to my old straight flow muffler...



this muffler creates just enough back pressure for reasonable power and torque across the rev range...