I picked up an extra lower portion of the airbox awhile back.
I was waiting until I figured out my cold pinging issue (which seafoam and many tanks of 89 fixed) to proceed.
Today I went to work on the extra airbox. I removed the airbox horn looking tube on the side nearest the fender, which leaves a huge factory hole on the side of the lower airbox. I then drilled a bunch of approximately 5/8 inch holes on the front of it (on either side of the cold intake tube) and some holes in the bottom and on the side nearest the fender (on either side of the huge factory hole) . Did not drill any holes on engine side. Then installed and put my k &n drop in filter in.
The sound is legendary. I love it. Its a beast!!
I still have an OEM unmolested lower half in case I want it quiet again.
In my opinion, it has a very noticeable torque response.
I was waiting until I figured out my cold pinging issue (which seafoam and many tanks of 89 fixed) to proceed.
Today I went to work on the extra airbox. I removed the airbox horn looking tube on the side nearest the fender, which leaves a huge factory hole on the side of the lower airbox. I then drilled a bunch of approximately 5/8 inch holes on the front of it (on either side of the cold intake tube) and some holes in the bottom and on the side nearest the fender (on either side of the huge factory hole) . Did not drill any holes on engine side. Then installed and put my k &n drop in filter in.
The sound is legendary. I love it. Its a beast!!
I still have an OEM unmolested lower half in case I want it quiet again.
In my opinion, it has a very noticeable torque response.