cobyjim

I am looking to get some bits together to start extracting some extra power out of my 2004 WRX 5 door wagon. Many boys saying the usual decat + fuel pump + filter then map it strategy. I have seen a toyosport decat on ebay
. Its the "frontpipe". Is this an easy install on the driveway or should I just take it to a garage with a lift? I have a Prodrive cat back system on now which sounds nice. Does anyone know if toyosports do a standard decat or if you can recommend a better route than I am taking here? Am a bit confused with the decat stuff tbh. Any other blobeye wagon owners have decats? Also, where is best to get my car mapped in south wales? Thanks guys.

jura11

iTrader: (7)

Hi there

Personally I wouldn't fit anything from ToyoSport,we are tried only once their exhaust and fitting has been horrible,exhaust didn't line up at all and there are been few other issues

Yours current Prodrive catback should be OK for 330bhp and if you are bit concern about the if this exhaust will be enough for yours needs,then I would have look on 2.5" downpipe

Better route I would probably look for better exhaust and not ToyoSport exhaust or their headers,please stay away from them

Thanks,Jura

cobyjim

Cheers for reply mate. I'll steer clear of the toyosports stuff then. So if I went for a remap, would it be ok to still have the cat on? Or would that be a waste of a remap? If I just went for a fuel pump and air filter then map, what power would i be looking at?

fat-thomas

iTrader: (4)

anything toyosport is sh1te

jura11

iTrader: (7)

Hi there

You are running too Prodrive sport cat or not?

If yes then you should be OK and I would expect somewhere from 270-280bhp on yours

If you are not running Prodrive sport cat then I would expect something around 250-270bhp

Fuel pump upgrade,yes its worth it as not sure how old is yours pump and when has been last time replaced,due this I would replace

But really if its budget please have look over here in For sale section for better exhaust or at least you will need decatted downpipe and centre pipe,Prodrive backbox should be OK at this power

Decatted exhaust will flow bit better than catted exhaust there

Thanks,Jura

RS_Matt

Don't do it yourself. Mine was at a Turbo specialist all day and cost me £292 for fitting, god knows what a normal garage would have charged or how long an hobbyist would have taken.

I had the Cobra Sport race cat downpipe fitted and tbh it sits so low that I've had to raise the car's coilover height.

I keep adding mods thus needing map tweaks, if I did it all again on a stock blob I'd lump it all in and get a fuel pump, panel filter, STI pink injectors, TD05/VF35 turbo, colder NGK plugs, decat up-pipe, de-cat centre section, sports cat downpipe, silicone turbo/vac hoses and FMIC or STI TMIC. Not sure about a 3 port boost controller at his stage, very divided opinions. All this should really see you past 280, maybe even past 300 with some headers and exhaust wrapping or some cheeky parasitics removals.

Probably all done for less than 1500 mapped if you stumble on fairly priced parts/used parts. Perhaps slightly more if you choose VF35 and Ecutek.

cobyjim

Cheers for info mate. I've just had a look under my scoob and I'm not sure but I dont think there is a centre box. Only had car a few months and guy said it had prodrive exhaust on it. But by looks of it, it is straight through from the downpipe all the way to back box. Could this be right? Will this help me get more bhp after mapping?

jura11

iTrader: (7)

Hi Matt

You are paid too much for exhaust fitting,usually exhaust doesn't take more than 1-2 hours,we are fitted first our exhaust on our wagon and this took us around 2 1/2 hour when exhaust has been boiling hot etc and really I would say is doable there

And about the mods,you will see how you get on,but I would do everything in one go and then get car mapped,its cheaper there

Good luck with yours

Thanks,Jura

Hi there

If you have straight through exhaust then you should be OK and I would expect with yours mods around 260-270bhp,above that figure is possible and i've seen few surprising figures on standard WRX with basic mods

Thanks,Jura

RS_Matt

A bolt snapped in the turbo and had to be drilled out. Tuner said it was very common. My stepdad, an ex-mechanic now train driver, said they shouldn't have transferred the extra cost onto me as they snapped it, but as some of you know I get sick of arguing with Subaru/Specialist tuners, I'm at their mercy.

jura11

iTrader: (7)

Hi Matt

That's very unfortunate what happens to you,this doesn't happens to us and yes sometimes this does happen there and you shouldn't pay for this as yours stepdad said

Thanks,Jura

bludgod

iTrader: (3)

check if you have an uppipe cat in place or not, if you still have the uppipe cat then it should be removed as soon as possible.

After that it's the fuel pump and the sports cat (look on here or on ebay for a PPP cat/downpipe) that will keep you MOT friendly. Stick a nice panel filter in and get it mapped.

When you grow weary and tired of this power then look for STI pink injectors and a TD05(16g) or a VF turbo and take it up a notch. If your not mapping the car yourself then find a tuning company you can talk to openly and honestly, they will advise you the best order in which to do things and how they can adjust the map for you as you add the bits on.

RS_Matt

How viable is smashing the cat out of the standard WRX up-pipe as aftermarket ones are notorious for leaking?

RS_Matt

Just for anyone wondering about Cobra Sport Downpipes, it fits well enough but the design leaves the initial bottom of the downpipe extremely close to the floor. Luckily I have coilovers.

jura11

iTrader: (7)

Not sure there,we have few issues with those cheap eBay exhausts,mainly downpipe didn't line up and have similar issue like you have

Here is the picture of the main issue,is yours looking like this and do you have fexi there



Thanks,Jura

RS_Matt

The area circled sits very very close to the ground, the rest of the downpipe slopes gently upwards to the centre section.

I'll take a pic of underneath the car so it's clear just how prominent the depth of the downpipe is.