What exhausts pass track noise tests without a cat? Turbo

[afennell]

I would like to know what exhausts (with a decat only) that have passed the following sound tests at track days.

98db@3/4revs 0.5m from the exhaust pipe measured from a 45 deg angle

I know this question comes up from time to time so thought a list would be a good idea.
I’m only interested in tested exhaust.

Pass without cat

1. Mongoose
2. Hayward and Scott (anyone know how these sound, i think they look allot like the goose)

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

Feel free to add your experiences or questions.

[TubbyTwo]

Phoenix Power Departure 2.

[afennell]

Phoenix Power Departure 2.

Good call, do you know if they would pass? I would say not.

[Nick86]

hks silent hi power should

[afennell]

hks silent hi power should

Never heard of that, have you a link to where you can buy one?

[uglee]

Fujitsubo Legalis R will pass

[afennell]

Pass without cat

1. Mongoose
2. Hayward and Scott (anyone know how these sound, i think they look allot like the goose)
3. Fujitsubo Legalis R
4. hks silent hi power

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame
Phoenix Power Departure 2

[Steve-O 2007]

Normal Departure or the Pro Departure? Im guessing the Normal will be quiter due to the smaller diameter pipe work?

[TubbyTwo]

Phoenix Power Departure 2.

Good call, do you know if they would pass? I would say not.

i passed the noise test at snetterton mate and thats with a decat as well.

[afennell]

Phoenix Power Departure 2.

Good call, do you know if they would pass? I would say not.

i passed the noise test at snetterton mate and thats with a decat as well.

That does suprise me, do you know what there limits are.

Just found out they have a 105 dba Static limit.

[afennell]

Pass without cat

1. Mongoose
2. Hayward and Scott (anyone know how these sound, i think they look allot like the goose)
3. Fujitsubo Legalis R
4. hks silent hi power
5. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

[lockys96]

Pass without cat

1. Mongoose
2. Fujitsubo Legalis R
3. hks silent hi power
4. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

[afennell]

Pass without cat

1. Mongoose
2. Fujitsubo Legalis R
3. hks silent hi power
4. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

Strange, something has gone missing but I can't see what.

I'm sure there is a story there.

[steve]

Pass without cat

1. Mongoose
2. Hayward and Scott (anyone know how these sound, i think they look allot like the goose)
3. Fujitsubo Legalis R
4. hks silent hi power
5. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame
KO Racing T1/R1 (obviously with the bung in )

i should find out later in the year...

[lockys96]

Pass without cat

1. Mongoose
2. Fujitsubo Legalis R
3. hks silent hi power
4. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

Strange, something has gone missing but I can't see what.

I'm sure there is a story there.

hmmm, what makes u say that

[Nails]

ass without cat

1. Mongoose
2. Fujitsubo Legalis R
3. hks silent hi power
4. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec
4. RSR

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

Just added the RSR, havent had it tested but I'd say its just as loud as a NUR spec possibly even louder.

[afennell]

ass without cat

1. Mongoose
2. Fujitsubo Legalis R
3. hks silent hi power
4. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec
4. RSR

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

Just added the RSR, havent had it tested but I'd say its just as loud as a NUR spec possibly even louder.

Thanks, keep them coming.

[Rustyracing]

Any ideas to a Magnex decatted on an NA?

Traditionally Magnex was always a little freer breathing than a Mongoose, mine certainly sounds very loud when you hit 5k revs, but does it break the legal limit?

I'd be interested to know before being turned away from events.

[davidmit]

ass without cat

1. Mongoose
2. Fujitsubo Legalis R
3. hks silent hi power
4. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec
4. RSR

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame

Just added the RSR, havent had it tested but I'd say its just as loud as a NUR spec possibly even louder.

Add to that Rogues Revision6, 112db at 4500rpm

[afennell]

1. Mongoose
2. Fujitsubo Legalis R
3. hks silent hi power
4. Phoenix Power Departure 2 105 db limit past.

Way too loud!!
1. Apexi Hayabusa
2. 5Zigen
3. Blitz Nur Spec
4. RSR
5. Rogues Revision6

A few exhausts that would be helpful to know.

Japspeed
Berk
Blueflame
KO Racing T1/R1