For you baffle (silencer) doubters

[Pbadasay]

I have a full titanium akro exhaust on my 09 busa. I know a few people were doubting the fact that the baffle would affect HP so I had Ryan Schnitz tune my bike with the baffle in and then tune the bike with the baffle out. I have the results. I did mention it was a 4hp loss but i was wrong, it's just a little lower then that. It was cool to see the difference.

 

[mabupa]

Interesting!! Thanks for posting that!

 

[MoNoXiDe]

Very minimal difference. So I'd have to say the biggest difference is only sound.

 

[ATC'er]

Forgive my ignorance, but is it correct to assume that the dyno results indicated in blue are with the baffle in?

 

[MoNoXiDe]

Forgive my ignorance, but is it correct to assume that the dyno results indicated in blue are with the baffle in?

Yea. I would think your right.

 

[Pbadasay]

Yeah it may seem minimal but when a stock motor pulls around 176hp and you only gain 8hp with the baffle in which is a 4.5% gain in power compared to just taking the baffle out and having a 188hp which is a 12hp gain or 6.8% gain is pretty significant over a piece of metal on the end of an exhaust.

But yeah I do agree, if you're not much into major hp gains, the sound difference is significant. I loved it with the baffle in because it made the busa a undercover killer compared to seeing all these 600cc bikes roaring/buzzing down the street to make themselves seem faster when we all know the truth lol but after seeing the difference in hp, I like to know that I get the most bang for my buck especially when you usually have to dump hundreds into your bike to gain a few hp here and there. But yeah blue is with the baffle in and red is with it out, sorry I forgot to mention that.

 

[dadofthree]

Good results IMO. Did he remove all the restrictions on your bike ?

 

[Pbadasay]

Dadofthree- you already know just need to get on the road to see how much I notice the difference....have you gotten your ecu flashed? If so, how noticeable was it?

 

[sixpack577]

You should've done a K&N/BMC vs a stock air filter while you were there

I like baffles in mufflers too, I prefer quiet to a couple hp any day street riding.
Now drag racing, Alienhead with no baffle! Awesome sound!
Thanks for the comparison