precurser;497778 said:Yay or nay.
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niteblu;497980 said:best checkout the weight first.
think these Akra's could weight a fair bit vs. competitiors.
precurser;498003 said:You gotta be kidding me right?
Physicist;498306 said:Yeah your bee8 so loud I can hear it when you tear down Robinson Rd![]()
acupunch;498270 said:just curious, beside max airflow, sound, etc. does this performance exhaust have an open/close value thingy on the muffler to regulate airflow to match the optimum flow needed at the right performance?
I saw on an 09 335i that came stock with BMW performance exhaust, it has the open/close value thingy on the muffler to regular the air flow effective according to the performance.
my point is if you're paying so much, it can't be just weight, sound and looks. it got to give you that wow~ when u step on that throttle.
acupunch;498270 said:my point is if you're paying so much, it can't be just weight, sound and looks. it got to give you that wow~ when u step on that throttle.
fuzzy;498341 said:The bypass valve is not for any performance purpose, but merely to reduce SPL at low rpm.
This has been discussed in numerous forums and verified on dynos.