ZX4RR Yoshimura R77 Full Titanium DB Killer Test

[@eli22tru]

Glad you made a video on this 🙏🙏

[@chickentuber]

Cool test. Interesting that the perforated tubing seemed to quiet it the most.

[@mikee1216]

Sound is most likely scattering all around the muffler much more, dampening the sound/db.

[@chickentuber]

@@mikee1216 That makes sense I guess. I have the Akrapovic full system and now I'm thinking I should drill holes in the insert. I dont like super loud pipes but I do enjoy the massive performance gain.

[@mikee1216]

@@chickentuber my full titanium exhaust only yields about 1-3 hp, not worth a ticket in SoCal. That is why I did the db test. I only wanted it for more smiles per miles cause the stock sounded too much like a seeing machine. I ride around the city and to work.

[@mikee1216]

@@chickentuber which akra did you get? It came with an insert? I thought that akra racing did not come with one?

[@chickentuber]

@@mikee1216 I have the one for the zx25r but it deletes the cat for better flow. I had the bike reflashed and I'm getting 72.9 hp at 14k

[@Aivaras83]

I believe the measurement should be taken at 45 degree angle from the end of can, now you pointing straight to it

[@mikee1216]

This was taken at a 45degree angle. It is leaned against the back rest of the stool. Straight down would’ve been lying on the seat.

[@MrMoto948]

Nice. Looking for a DB killer for my r77. Any of yours for sale?

[@mikee1216]

Any of what? The DB killers?

[@MrMoto948]

Yes but you inspired me. I ended up buying a cheap copy and got it turned down at a local machine shop. Works good but machining doubled the price.

[@conniawine18]

So bro it can be legal in India? India got 80 decibel limit . But still we can keep till 95 it' can be considered till 95 . So it' legal in India ?

[@mikee1216]

Yes, you should be good. I think this is legal in Japan, JMCA.