Paucatuman2

Hi.

I have a MY2000 UK Turbo. Still running a TD04 paired with a few little mods, in the region of 280bhp.
The exhaust is Standard manifold and up pipe, Scorpion St Stl decat downpipe, 2 1/2" Scorpion St Stl centre with a STI back box. ( 2 1/2" pipe into dustbin sized box, with a 3 1/2" tip)

It's just too quiet!

I don't want it to be stupid noisey, but I'd love to hear a bit more rubble. It's a track car so need to be db limits aware.

Any recommendations please?

Thanks.

jaygsi

iTrader: (46)

Hi is the Centre pipe resonated? I'd just swap the back box out for Haywood and Scott back box.

https://www.haywardandscott.com/subaru.html?p=22

Paucatuman2

No resonator, just straight through.

Gambit

iTrader: (6)

The Sti backbox is your problem. Swap it out even for something like a prodrive backbox. With the decat downpipe and straight through centre box itll sound perfect without being a total pain to drive around in

jaygsi

iTrader: (46)

I'd agree I have a Prodrive one on mine and other is full 3" system.

Paucatuman2

Thanks both. As referenced, the STi box is like a dust bin so not surprising it's quiet, I just didn't want to change without asking as I don't want to go too far the other way.
Given me some ideas. I'll probably aim for a prodrive as H&S are not cheap.

jaygsi

iTrader: (46)

Yes Prodrive will be fine and not too loud. Other option is to have the STI back box opened and baffle cut out.