I just installed a Twobros exhaust on my Honda F4i. I already had a power commander on the bike. I downloaded the appropriate map from Dynojet and took the bike out. The TwoBros exhaust is much higher flow than my stock exhaust and much much louder. I noticed that when I dropped the throttle to shift or decellerate quickly I get a pop every now and then. It isn't consistant or persistant (the bike only pops once sometimes twice, sometimes not at all).

Do I have a problem, or is this normal with high flow exhausts?

 

I am not a bike expert but when a car does that after changing the exhaust it isnt normal persay but it wont hurt anything.

 

maybe its flames coming out your exhaust, i remember i was following a zx10r and everytime he downshifted a burst of flame would shoot out and a pop sound was made

 

it is called a back fire haha thats what happens with really flowin exhaust i always get it big time with my motogp exhaust flame shoots like a foot

 

yea it happens with mine at some points if im riding it really hard

 

yah its normal, don't worry about it

 

backfires = normal

 

yes, actually it is normal to have that pop. some exhaust have it, some dont. every one i know with a micron has that popping action.

but, i would recommend check on your plugs once in a while. back fire can be a result of few things and faulty plugs is on the top of that list.

have fun.