Roojai

Never tried a dump valve (atmos) until recently and must say they are quite cool in a way (!) but too annoying and too attention seeking.

Recently put a prodrive backbox on too and must say it had the same result.

Why are backbox mods so accepted and dump valve not so when really it is the same thing -more noise and more attention.

One thing I'd have to agree on is that the exhaust note emphasises the character of the car, and it is lovely to hear that flat-four rumble, but if the same performance can be had without the intrusion of a resonating backbox then why does everybody get one.

I quite like having a quiet 270 bhp and putting my foot down without any other effect than g-force, ....and I like the noise and 'experience', 'the event' of a loud exhaust too, ....but the quiet option seems to be winning at the moment.

I know this view is not generally shared, any comments as to why?

ALi-B

iTrader: (1)

They aren't - some scoobies have the most stupid zorsts around

Many even land in this country with industry-sized bean-cans fitted as standard witha 2.5" bore and still with two cats for the rest of the system...what is the point apart from making it sound like a Volkswagan camper van with no exhaust system?

The beauty of the impreza originally 10+years ago was all about its subtlety - nobody knew what it was, now it's quite the opposite. Everybody knows what it is - and just to make the point to the rest of the world, the modern age of Subaru drivers want to shout it to the world that they have an inferior set of exhaust headers fitted

cong

i dont think a dump valve is chav. because most chavs cant afford to run or buy a turbo'd car but they can afford those loud quad rocket launcher tail pipes on there saxos

Soulgirl

Surely, even owning a scooby puts the owner in the attention ***** position. In fact, there is no denying that statement at all is there...

Daft Lad

I thought what we were all shouting was "my car sounds much nicer and much more distinctive than yours"? I'm not so sure the average pedestrian would hear a scooby coming and think "**** me, whatever car this is its exhaust headers certainly aren't equal!"

Dump valves, like exhausts, are a matter of opinion. It seems at the moment that everybody is quick to jump on the bandwagon of labelling things 'chav' if they don't like a particular aspect of modifying, they hear dump valves on a couple of chav-driven RS Turbos or Renault 5 Turbo's (not that I have anything against these two cars - just using them as an example) and think that therefore dump valves on imprezas are also chavvy.

Soulgirl

which made it even more of an attention whoring car People are upset now that it isn't so far and few between, and lets face it, the original exhaust spec was just pants...

tath

is the attention ***** position in the kama sutra?

scoobies are becoming the discerning chav's trade up from his burberry vtr unfortunately, so i'm sure we'll see a plethora of brain-dead performance leads, tints, DVs, subs, GRP bumpers and massive quad cans hit the market soon. except for some scallies like the berk today who told me his vts "pisses all over WRX's..." lol

Daft Lad

I agree with you that many chavs are upgrading to Imprezas nowadays, but the point I am trying to make is not all people with DV's, subs etc are chavs!

Brother_Will

No VTA dumpvalves on an impreza are chav since you really should have a Recirculating DV on an impreza, a VTA is just "look at me i is got a wikid turboed mota innit"

chrome

how about if you acquired the VTA BEFORE the national 'chav' emergence took place ?

and external wastegates are FAR from chav imo

ScooBStu

Well I say leave them alone - Just my opinion of course. If you modify your subaru when more and more chavs buy them yours WILL be seen as chav in my opinion.

Leave it standard and it will probably be worth more and get more respect in the long run. Especially with regard to body kits, big wheels, exhausts and the dreaded neons!!!!!!

WRXtra power

IMHO exhaust upgrades are not CHAV like dump valves. There are no performance gains from a dump valve so it's just there to make a silly noise.

Exhaust upgrades however are a well documented performance necessity if you want to release the most out of the power locked in your engine. The standard pipe is far too restrictive for the car so it just make good sense to upgrade it.

Also I love my music and it always sounds better when its turned up, just like I loved the flat 4 of my scooby when I got it, so guess what, I turned it up......

ALi-B

iTrader: (1)

I wouldn't say that: UK classic standard backbox...250bhp

Restrictive? Only the cats, but thats as far as it goes

Stiver3

Well said! Things get labeled too much on here, people think because they've seen it on a 'chav' motor, loud exhausts, dump valves, big bodykits etc...that any car that has the same product is also chav! I don't think dump valves are chav, and neither loud exhausts, its down to personal taste and what car its going on.

Roojai

exactly my point. I recently had my car on the rollers with a quiet standard exhaust and it was putting out 270bhp (powerstation).

I remember reading that a standard box was put on a 400bhp car and the power dropped about 5hp, which isn't much is it.

I put prodrive exhaust on mine as I felt it was a bit boring, needed a bit more "character", but now think it is actually a much cooler car as a quiet sleeper (it is a debadged old wagon so does not scream 'rallycar'), so will be putting the quiet exhaust back on.

James Neill

iTrader: (1)

The impreza drives much better without a VTA dump valve. Just try and and see how much smoother your gear changes are without one.

I have a scoobysport back box and it gives the rumble I like. It's there but not to intrusive. Like the poster said, the exhaust rumble is "character" the ptssh, ptssh is not!

mattvortex

the so-called power gains your supposed to get with up-rated exhausts is negligable imo. i have a scoobyworld afterburner back box and centre which is supposed to give an extra 18bhp. to be honest i cant tell any difference over the standard box ( apart from the noise!) and im sure if i was to floor it against an impreza with a standard box, i wouldnt pull any lead on the standard car

flat4_ire

u shud have got it up on the rollers before and then after fitting the exhaust, then you would have known exactly how much bhp/torque you have gained!
dumpvalves aint "chav" as u english people say, they sound good and 99% of peope agree with this as far as ive heard of anyway

WRXtra power

I disagree in a big way....

I have the just got a scooby sport centre pipe and Afterburner Vortex backbox and after running with a standard system I can certainly notice the difference:

Quicker turbo spool up

more responsive throttle

Quicker pick-up through the power range.



However I am running this on a import classic. I have heard that the newer cars need to be re-mapped to make any improvement at all.



All I did was a quick ECU reset

peachy wrx

i'm sick to death of hearing the word "chav"

i got a dump valve and fairly loud exhaust........how f***ing cares!!!!!

flat4_ire

thank you! what a stupid word anyway, WHO cares?

WRXtra power

Not as loud as mine Andy, lol

peachy wrx

your damn right mate!

pslewis

Chavs don't recognise themselves ............ it's a well documented fact

Chavs like YOU don't think you are, but laugh at all those cheap ARGOS gold Chains/Wheels and the ***** hanging outa fat chavettes jogging bottoms!!

Pete

WRXtra power

P!ss off you old git!

peachy wrx

oh shut up! your old really old...and smell of wee.....yea wee!

pslewis

Fookin' Chav!!

Pete

peachy wrx

fookin old fart!

mgcvk

I think the above is true but more if turbo back system is fitted. Without a remap turbo can over boost and make car feel weird.

Soulgirl

There, you just hit your own nail on the head.

Now fukc off and watch your Corrie omnibus.