Hatchytoku

I have a 2008/9 STI Hatch

Prodrive exhaust system on it.

I am looking to get a deeper/louder burble from it without making it insanic.

Whats the best thing to do for starters?

Thanks

Don Clark

The Prodrive system will have removed the 2nd Cat.

Replace the centre/rear pipe to remove the resonator with a H&S one..

http://www.haywardandscott.com/subar...ngle-exit.html

Hatchytoku

Yep its got no second cat.

Will that make it louder? The resonator box is tiny.

Is this the same?
http://www.scoobyworld.co.uk/catalog...e48cbb7fb70d80

Don Clark

That's the 2nd cat replacement pipe.

This is the centre/rear pipe......
http://www.scoobyworld.co.uk/catalog...e48cbb7fb70d80


Removing any resonator will make it louder..............

Hatchytoku

And there is no second cat on mine (Am i right about that) lol

Sorry for sounding so dumb buddy.

Don Clark

You say you have a Prodrive exhaust - from that I assume you are running the PPP (Prodrive Performance Pack). If so 2nd Cat would have been replaced.

http://imdomino.imgroup.co.uk/imggb/...6?Opendocument


You also need to understand that various people/manufacturers name their exhaust parts differently to Subaru.

Item1 below is the 2nd Cat assembly which is called "Exhaust pipe assembly-center, front" by Subaru. Most people know this as 2nd part part of the down pipe.

Item 25 is the "Exhaust pipe assembly-rear" but most call this the centre pipe.





Your resonator on Item 25 may not be as large as shown as it varies for market area to market area.

Hatchytoku

Thanks mate

Is there anywhere I can get the centre pipe cheaper ??

Hatchytoku

Is this any use

http://item.mobileweb.ebay.co.uk/vie...d=330686736877

Scooby B

iTrader: (2)

Changing to RCM exhaust headers made the biggest difference to the burble on mine. (Not a hatch though)

Hatchytoku

Not looking to change the headers just the centre pipe.

Just looking fir the cheapest option as bought the car last week and spent loads on it already just got it back from the bodyshop today getting a whole front end respray for stonechips.

Don Clark

Same decat pipe

Spend the money

They are all around that price.

you could ask cobrasport what they would charge for just the rear pipe

http://www.cobrasport.com/exhaust/Su...ack%29+/31/0/0

Hatchytoku

Don

Here is a photo of the underneath of my car to give you an idea.

Its only got one wee box in the middle and also the Prodrive backbox aswell. And its pretty quiet.

Cheers for the info pal

rob84

iTrader: (5)

Go for hayward & scott, Ran there turbo back system on my hatch for 4 years now and it sounds spot on

Don Clark

I know what's under your car..... I have one very similar stood up in my garage.



If the prodrive back box, with the second cat removed, is too quiet you have three choices...........

1) Replace the rear pipe to remove the resonator for a through pipe as discussed (I still have all my cats but the H&S de-resonated pipe plus silencers give a nice burble on the saloon).

2)Replace the Prodrive silencer with something different.

3) Replace cat back exhaust complete for something different.

Hatchytoku

So if I remove item 44200 it will deffo be a lot louder.

Where are you getting all the pics?