The Microtech Advanced tuning manual has just been made available to the general public.
The comprehensive manual has over 130 pages & covers all topics of tuning,installation,trouble shooting & also has several...
Scenario 1: 2.5" from downpipe to straight flow muffler
Scenario 2: 2.5" from downpipe to straight centre box (also a silencer) to straight flow muffler
Scenario 3: 2.5" from downpipe to s-flow...