Apologies if there is already a thread on this..but out of curiosity as the titles goes..
Am currently using a 2.3 inch diametre piping from the extractor straight out towards the muffler with no bullet..and have been using this setup for the past 2 years..but i noticed there's a slight decline in throttle response compared to a 2 inch piping setup that i used to have earlier...
Is it normal?..or is my current diameter is too big?..some of my colleague with similar...
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