New Prodrive-developed Performance Packs (PPP) are now available for the ’06 Model Year turbocharged Impreza 2.5 WRX, WRX STI (and the new spec.D version) plus the latest Forester 2.5 XT manual.

All offer a dramatic improvement in low and mid-range power and torque, aiding engine flexibility and throttle response. The new Impreza WRX has a staggering
74 lb ft more torque, for example.


However, top-end power is also enhanced with the latest Impreza 2.5 WRX STI with PPP now producing 320 PS – a 39 PS increase.


Meanwhile, the Impreza 2.5 WRX and Forester 2.5 XT manual with PPP produce 270 and 260 PS – boosts of 40 and 30 PS respectively. A PPP for the Forester 2.5 XT auto will be available shortly.


All kits are available from any Subaru dealer for £1,700 including VAT and fitting and do not affect the standard vehicle warranty. All also pass full UK Type Approval regulations for noise and emissions.


The extra power and torque are achieved by re-programmed Electronic Control Units (ECU) plus the removal of the rear catalytic converter, fitment of a high-flow catalyst and sports silencer. The Impreza WRX STI also has a new high-flow fuel pump.


Impreza 2.5 WRX STI With Prodrive Performance Pack
Figures for the latest Impreza 2.5 WRX STI with PPP show power leaping to 320 PS (316 bhp) at 6,000 rpm instead of 5,600 rpm and torque now at 332 lb ft at 3,700 rpm instead of 289 lb ft at 4,000 rpm.


This is sufficient for the 0-60 mph time to drop from 5.0 to 4.8 seconds with 0-100 mph in 12.2 as opposed to 12.5 seconds.


The 30-50 mph time in 4th gear is reduced from 4.8 to 4.3 seconds, with the 50-70 mph time in 5th gear coming down to 4.3 instead of 5.1 seconds. At higher speeds the 80-100 mph time is now 6.3 instead of 7.6 seconds.


Impreza 2.5 WRX With Prodrive Performance Pack
The new Impreza 2.5 WRX with PPP produces 270 PS (266 bhp) at 5,700 rpm and a massive 310 lb ft of torque at only 3,000 rpm – an increase of 74 lb ft at 600 rpm lower.
The result is a 0-60 mph time reduced from 5.9 to 5.3 seconds and 0-100 time of 13.9 instead of 14.4 seconds.


Meanwhile, 30-50 mph in 4th gear comes down from 5.0 to 4.0 seconds with 30-50 mph in 5th in 4.7 instead of 6.6 seconds.


Forester 2.5 XT Manual With Prodrive Performance Pack
The ’06 MY Forester 2.5 XT manual with PPP sees power leap to 260 PS (256 bhp) at 5,600 rpm with 300 lb ft at 3,000 rpm – an increase of 64 lb ft at 600 rpm lower.


With PPP, the Forester 2.5 XT manual reaches 60 mph in 5.3 instead of 5.9 seconds and 100 mph in 13.9 as opposed to 16.0 seconds.


The 30-50 mph time in fourth gear is now 4.2 instead of 5.5 seconds with 50-70 mph coming up in 5.0 instead of 7.3 seconds.


Competitive Prices
Prices for the turbocharged Impreza and Forester ranges continue to be highly competitive – backed by three year/60,000 mile warranty, 12 years’ anti-corrosion cover and three years’ paintwork warranty.


The latest Impreza 2.5 WRX starts at £20,945 OTR for the saloon with the Impreza 2.5 WRX five-door costing £21,445 OTR.


Topping the Impreza range, the saloon-only WRX STI Type-UK is priced at £27,040 OTR with the special-edition WRX STI spec.D listed at £28,540 OTR.


Meanwhile, the lowest-priced turbocharged Forester is the 2.5 XT which costs £22,040 OTR.

 

It's interesting that the 2006 2.5 WRX PPP has a 0-60 of 5.3 secs but the 2005 2.0 WRX PPP had a 0-60 of 4.8 secs with less power and torque.

 

very intrigueing
so basically the sti ppp is a wr1 map on the 2.5l-with a broader spread of torque they have not used potential of 2.5l very well imho
martin

 

Having seen the Prodrive development cars a few times I can assure you that a lot of effort has gone into them and it is far from a WR1 map. Considering what is actually changed their pretty good, maybe, just maybe with these mods they have safely used the 2.5’s potential.

 

Any improvement on top speed ?

 

But they really arent offering anything different than you are, are they? I know where I would put my money

 

Warranty

No disrespect meant to Iain of course as I would love one of his cars { Continues to daydream }

 

I'm afraid that these figure's don't do anything for me.
The performance difference compared to the 2.0 PPP is invisible as far as I can see. All it seems to be is an increase in torque with no benefits.
The WR1 now looks an even better car. The increases that it got for 320ps were more noticable.
I presume that the 2.5 will be thirstier than the 2.0, so at least the weight will come down quicker. So the more you drive it, the sooner it will be faster.
It makes me wonder how reliable the engine will be.
I think I will stick to a 2.0 at the mo. Time will be the true tester.
It does look the bollocks in white, but I will wait.

 

So the wrx pack now comes with a downpipe (high flow cat).... at least that's something. But why is the WRX the same price as STi when it doesn't come with the fuel pump.... not impressed with that at all (even if the pump is only worth £125)!

Tony.

 

Must admit I can see me agreeing with the

"buy a JDM" brigade

I am a little concerned that the word "Safely" keeps coming up when 2.5's are mentioned

 

The 2.5WRX has lower gearing and develops maximum power at lower revs (5600rpm) than a 2.0 so it's quicker to use 3rd to get to 60 rather than rev to over 6700rpm in 2nd. The telling figures are the torque increases and the better in-gear and 0-100 times.

The picture on the Subaru UK website doesn't show a sports cat for the WRX, just a decat pipe. They didn't put one on the 2.0WRX PPP did they?

 

All the wrx packs thus far have not had the downpipe... however if you read the first post it says all MY06 packs come with the replacement high flow cat but STis additionally have the fuel pump.

The pics on the website look the same pics they used for MY03-05.

If the WRX doesn't come with the sports cat its even worse, why does it cost the same as the STi pack

Tony.

 

What did everyone expect? Prodrive have never offered BIG headline figure improvements over std. If you look at previous packs, it's always been about 30 odd bhp and similar increases in torque. It's the driving experience, particularly in respect of the flexibility of the car that's set to improve significantly.

Its not exactly fair to say that the PPP is inferior to what might be acheived by a Tek3 map elsewhere as such maps are tailored to a particular car -often more extensive mods to the car's set up- and the individuals needs. Prodrive have to work out a generic map that will mean the whole model range, not just one car- will run as safely as std, over as broad a range of conditions as possible.

For many, those figures will be more than adequate and the pack will be worth quite a bit come re-sale time and won't invalidate a warranty, which is a big issue for some people and will negate the relatively high price compared to what you could acheive by taking other tuning routes.

Ns04

 

A bit more info on the Sti PPP:
http://www.xjsr1.co.uk/2006STi0PPP.pdf

 

So £1700 for .6 of a second 0-60 speed increase are people really that desperate?

 

Now thats better. The difference can really be seen down the bottom end.

 

Your missing the point. Why pay over £4000 more for an impreza over a type R for .3 second .

Tony.

 

Just printed the graph:

Non PPP 400nm @ 4000RPM - PPP 400nm @ 3000RPM
Non PPP 280PS @ 5600RPM - PPP 280PS @ 4700RPM

This increase in low down power / torque should make a big difference on the road.

 

Anyone got the PDF for standard WRX ?

 

Look like nice packs to me.

What I find most interesting is that the WRX gearbox will take 310 lbft.

 

Sti MY02 std, completely gutless with abysmal performance below 4000rpm, OK from 4000-6000rpm, but tiring to drive.
STi MY02 PPP, power from 2500rpm upwards, so well worth the money. (£2000!!!).

STi MY06 std, power from 1700rpm upwards, from 2,500-3,000 verry nippy.
Shortshifting at 3000rpm and you are not hanging about, at 4000rpm (running in speed) you are in danger of being nicked.
It drives very nice, relaxed easy performance, 0-100 is 0.3 secs slower (theoretically) than a PPP'd STi MY02,MY03, MY04, MY05 but with almost no noise.
Insurance?
You can tick the box that says 'no this car is not modified'.
That can be worth a lot of money per year in insurance savings, and certainly a lot less hassle getting quotes.

Conclusion.
Why bother with PPP?

Sorry Prodrive, or should it be thank you Subaru for making a car that is extremely capable 'out of the box'.

Thanks
MTR

Edited to add, the Subaru web site says max power at 6000rpm for the STi, Prodrives site says 5,600 rpm?
They can't both be correct.

 

If there is interest and someone can host the files let me know and I' ll send him all the pdf files for the PPP's.
The three packages include backbox, remap and fuel pump for the STI or I/C "Y" hose for the other two.
Plus they' ll have very soon TUV and DEKRA approvals!
Bear in mind new WRX has shorter gears than the 2.0lt models and new STI has longer gears (except first gear) than 2.0lt models so only the graphs can tell you the truth, quite impressives for the mods they include IMHO.
JIM

 

Jim,

Could you e-mail me any details you have on the WRX.... toe_scooby@hotmail.com

Cheers,

Tony.

 

Three PDF's from Jim.

www.xjsr1.co.uk/06MYForesterPPP.pdf

www.xjsr1.co.uk/06MYWRXPPP.pdf

www.xjsr1.co.uk/2006STiPPP.pdf

 

Cheers Edward for the hosting, Tony please download them!

 

John the new WRX gearbox has many differences from ours except the shorter gears and basically stands more abuse.
Of course the shell design which is of the weakest points remains the same!

 

What's the story with the messy torque peak on a std WRX & Forester (3.4-3.7k rpm)?
Prodrive smooth it out so why couldn't Subaru?

Nick

 

The std torque curve does look a mess.
Adding PPP will make a serious difference.

 

I think we may be in danger of over-analysing the data here.

None of the cars now reach 60mph in second gear so comparing 0-60 witha 2.0litre car is misleading.

The fact that the STi is quoted at 320ps does not mean that it's a revised WR1 map. The engine is substantially different, the exhaust is different as are turbo, injectors etc, but the main difference is the ECU which is totally different with different strategies controlling how it works. Think of it like the differences between Latin and Italian. Both created in the same place and with some similarities but rather different in reality.

To clear up the parts changed, WRX and Forester are rear cat removed and replaced with a silencer, new rear silencer, high flow intercooler hose and recalibrated ECU. STi doesn't have a new intercooler hose as it already has a proper hose but it does get a high capacity fuel pump. None of the cars have a new downpipe and main cat as it's not necessary at these power levels. More power would be achieved by changing the downpipe on the STi but we haven't done sufficient durability testing to prove that out yet.

Regards

Mike

 

Mike, does this mean that at some time in the future the PPP for the MY06 Sti may include a replacement downpipe?

Cheers

Edward.