16-03-2013, 03:53 PM
last week i decatted the hdi and replaced the back box for a straight section of pipe. I have just kept it at 2.25" for now but im surprised it barely made any difference to the noise, there isnt much grunt tbh.
is the midbox enough to keep it a good bit quieter? I have heard other hdi's with straight through and decat sound much louder
is the midbox enough to keep it a good bit quieter? I have heard other hdi's with straight through and decat sound much louder