3.5" Downpipe> 3.5" Metal Cat> 3.5 to 2.5" Y pipe > twin 2.5" pipe to custom SS IJ Muffler > twin 2.5" pipes to SS can mufflers.
88Db @ 4800 rpm (legal limit here is 90Db)
Picked up some top end over a 3" system that was 97Db and makes it's power 1000 rpm earlier.
3" is hard to silence...
Do a pedal height retention test
Motor off pump the pedal a few times to empty the booster
hold force on the pedal and sit like that for 5 minutes and observe the pedal's reaction.
If it begins sinking towards the floor it's new Master time.
Valve opens the CT @ 6psi can get xx volume into the cylinder valve closes
60 trim can get more volume of air in during the valve open time add the correct % of fuel to this light it off and you get the bigger BOOM and more power.
Boost is everything the turbo can flow in excess of the...
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