Lexus ISF HKS Exhaust
#16
Lexus Fanatic
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the helmholtz chambers that come with the higher end systems reduce the annoying lower end frequencies. Most will be louder but few will have less drone
#17
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Sad thing is it's pretty simple math to figure out. During production of some of these exhausts would have been nice if they added them during the prototype stage once drone was acknowledged. Oh well.
Reason why some are a thousand and others are thousands haha.
Reason why some are a thousand and others are thousands haha.
#20
Lexus Fanatic
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Originally Posted by FFM
Sad thing is it's pretty simple math to figure out. During production of some of these exhausts would have been nice if they added them during the prototype stage once drone was acknowledged. Oh well.
Reason why some are a thousand and others are thousands haha.
Reason why some are a thousand and others are thousands haha.
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