peccy

1. Buddy Club
2. 5Zigen Fireball
3. BPM Twister
4. Blitz Nur Spec
5. HKS Hiper

have done a bit of searching and this seems to be the top 5 in order.

have i missed any?

SPEN555

Wot about a 3" Downpipe and then a bit of stainless steel pipe to give a side exit? Surely that would be a tad loud?

Damian.

Pavlo

it sure is

SPEN555

Pavlo,

Do you have such a system then?

If so, do a sound file

Pavlo

I don't have such a system, but a number of times my centre section has come away from the downpipe, it did it a few times at scoobyshootout

peccy

after branded off the shelf stuff really guys?

Gidney&Knowlesy

Hayward & Scott made a system that was over 120 decibels loud (it may have been louder though the noise meter only went that high...)........as a comparison an F1 car is 118 decibels......

Pavlo

The Team555 icelandic drag car had a straight through system for TOTB3, with no silencers at all.

Paul

Red Admiral

Mine is quite loud - have not got a decibel meter but its all TSL Motorsport Stainless Steel.

1. TSL Sports Cat
2. TSL Decat centre section
3. TSL Group N twin pipe back box

It sounds very nice and really very loud.

Shame we cannot get some sounds.

Cheers

Red Admiral

hades

But I'm sure no-one would have ever used something like that? Their neighbours would've complained for sure

Red Admiral - A system with sports cat and group N backbox isn't actually very lous by scooby standards, very quiet compared to any of the above mentioned; get yourself along to some meets and hear a proper loud one!

M0NEY

Yeah they seem top. Im not sure about Buddy club though. A member had one of these, went round with Blitz and he wasnt happy as he thought the Buddyclub was meant to be well loud. Both wasnt convinced.

I had before Blitz Nur Spec R with H&S decat downpipe and that was around 118db. TSL and HKS were lower (think HKS was 115db and TSl was 103db).

There is a greddy exhaust meant to be pretty loud

Pavlo

You boys and your loud exhausts, I dunno...

dogpole

Has andbody got any pics of these box's.
i'm after a louder backbox, currently running:
TSL headers and uppipe, decat downpipe, decat centre and Firestorm box.
But its just not loud enough, the rasp is loud but the lowers revs aren't.

hades

Firestorm is reasonably loud backbox, although e.g. the Blitz is allegedly louder still. Your "problem" is probably that the headers tend to make things quieter.

Not convinced it's really a problem, as personally I'm quite fond of reasonably quiet on the cruise etc, which is why I have a full APS system with sports cat, resonator etc.

ex-webby

Guys,

Which is the loudest BACKBOX with standard centre, cat and downpipe??

Regards,
Shaun.

peccy

just a 3inch bit of pipe like sugested above? or does the backbox 'silencer' produce most of the noise??????

In the ring of fire

1. Buddy Club
2. 5Zigen Fireball
3. BPM Twister
4. Blitz Nur Spec "R"
5. HKS Hiper

There is a difference between the R & just the Nur Spec

The back box is a lot larger on the Nur Spec & is a lot quieter

Nur Spec R all the way

Aztec Performance Ltd

iTrader: (234)

I thought the Nur spec and the Nur Spec "R" backboxes were indentical? The Nur spec going from 3" downto 2.5" to mate to a 2.5" centre.

Take the flange off (and the 2.5" restriction) and mate to a 3" centre and I would assume its identical to the Nur Spec "R". Thats what I have done with mine and its rather loud

Bob

chris singleton

My Blitz Nur Spec (not "R") with a full Scoobysport (H&S) decat is embarrassingly loud, so much so I pushed the car out of the garage today as it was quite early (6.45am) and started it down the road.

The entire street tends to shake if I start it in the garage

Chris

SCOOBYD00

Just removed my system... the center decat pipe is at least 4" straight through with the NUR *Style* backbox. must be the loudest system on the planet. Came on a jap import. Not for the faint hearted.

For sale too....

scoobyDAZZA

i changed me nur spec r , ie 3" system from down-pipe to a 2 and half inch H+S system,but the back box is the louder 4" tail-pipe H+S and that IS louder than the blitz i took off.

or its blowing

:-)

peccy

1. Buddy Club
2. 5Zigen Fireball
3. BPM Twister
4. H&S 4inch (NEW ENTRY)
5. Blitz Nur Spec

scoobyDAZZA

wots this ?
top of the pops ? pmsl

dogpole

The BPM twister is a strange box

R.B

is that on tickover they sound alot louder than that my old megabusa was over that

dogpole

just found a pic of the 5Zigen Fireball

ross98247

Any sound files for these different systems guys?

chrome

my hiper is very loud, although thats probably due to the last but one owner removing the centre and replacing with mild steel

very very loud on cold idle...

P20SPD

iTrader: (1)

H&S Pat spec system is loudest i have heard, as on Trouts car.

At prosport RR day in Feb they had decibel testing equipment. Top 3 loudest

BPM Twister at 113db IIRC
HKS Hiper without bung 115db IIRC
H&S Pat spec 122+db (ie it went off the scale)

SPEN555

LOL!

I remember someone with a Scoobysport 3" D/P and centre with the BPM Twister backbox. Above 4,000rpm he said the whole dashboard would vibrate!

Seen as the BPM came last out of the 3 above I dread to think what the other two above are like. I can't imagine you could put up with it as a daily driver.

Do you think these would be allowed on track at Bedford?

Damian.