khan786

does any one know were i can get a screamer pipe (dump pipe) from for my bug eye scooby 2002 model.

Sosbanite

Here's one supplier.........

:: GRD - Greenwood Racing Developments ::

khan786

i had a look at the pipe and it was not quite what i wanted,this means that i will have to remove the whole exhaust system. i just need the screamer pipe area.any other sites or even advise.

RRH

To fit a screamer you'll need to change the downpipe- then the wastegate will vent to atmosphere rather than going down the downpipe as usual.

I'm not sure who makes them for Imprezas to be honest- they're quite popular with Evo's although most people don't use them for long as they're so noisy.

Coffin Dodger

Normally used for a turbo without a built in wastegate (e.g. some massive Garrett GT30/35 jobbie) so an external wastegate is used. The screamer pipe connects directly to the wastegate.

As mentioned very noisy.

El Cat

how noisy are these things out of interest and whats their purpsoe?

RRH

Mega noisy- verging on unbearable. IIRC the theory is that by the wasyegate venting separately it doesn't cause turbulence in the downpipe

stevebt

iTrader: (8)

The screamer pipe is part of a rotated turbo system and as such you would need a complete new system

frayz

iTrader: (7)

It is possible to have a downpipe made with a divorced wastegate and have a screamer pipe that vents to atmosphere.

Zak @ Mocom Racing has run this very setup on a JDM twinscroll and i think any gains to be had were very marginal and did not offset the overwhelming noise of having the gate dump to atmosphere.