raly-pete

Can anyone give me some advise please on removing the wadding from my 2008 prodrive backbox? would it be ok to do? Detrimental to power? Any technical advise greatly appreciated

clyne 08

Not sure about the prodrive one but a friend removed the wadding from his after market backbox for more noise and it sounded terrible (very raspy).

raly-pete

Thankyou, just wondered how the perforated pipe is affected?

The Rig

iTrader: (13)

Don't do it , my wadding was removed from an hks box as the inner cage rotted so I cut the can open and removed all wadding , it sounded ****e and lost power

Gambit

iTrader: (6)

https://www.scoobynet.com/general-te...ke-a-look.html

could ask him what it sounded like

clyne 08

I have just bought this Crawford Gymkhana (no wadding to remove lol) as my current quad exit nur-spec is a bit quiet.

raly-pete

Just bit the bullet and bought a hayward and scott cat back system.. Just need a reasonably priced decat downpipe now

domino46

The japspeed backbox wasn't any good for you then ?

raly-pete

It's a little too quiet mate.love the look of the tailpipes,but soundwise I found it very similar to the prodrive..

raly-pete

Will bring it along when I come to one of the meets :-)

domino46

Cool , you could have a listen to my full system then if you haven't sorted one by then as iv found mine is quite loud really lol but it's a full 3" all the way with the resonator removed but I'm thinking about putting it back in lol again lol

raly-pete

Excellent mate!

crookedvulture

iTrader: (3)

I'm interested in this thread as I have just got a full HKS super drager system that has had a repair to the back box.The rest of the system is in pretty good nick but there is something rattling in the back box.I am planning on cutting it open all the way around the box the end where the system goes in,then re packing it with some quality wadding & hopefully have a pretty tidy zorst at the end of it.

raly-pete

I've cut open the top in three sections,easy to access the wadding, opened like large flaps.

crookedvulture

iTrader: (3)

Oh er Mrs large flaps 😋
I thought it would be easier to cut round the circumference of th back box at the end where the exhaust goes in.What do you think?

raly-pete

Haha,no mate,it has a central chamber soon would have to cut open both ends. The top is a much easier option ( not saying flaps again) ��. Ps,does depend what the hks looks like though.