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Taking an STi up to 310-340 BHP

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Old 27 June 2010 | 12:26 AM
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Default Taking an STi up to 310-340 BHP

Guys,

I've made my mind up to buy an STi once my current car is sold. Ideally one with the PPP already on it to save hassle. However reading Andy Forest's site it appears 310-340 is not massively expensive it would seem.

However the stages show the car would need a decat, how does this affect the MOT emissions?

Also what's the rough cost of the parts needed below?

Full Decat turbo back 2.5 " or 3” bore
Walbro 255 l/hr uprated fuel pump
K+N panel filter
Ecutek custom remap
Twin boost set up for high/low power switchable in-car
NGK PFR 7B uprated spark plugs


Thanks guys

Last edited by Pink_Floyd; 27 June 2010 at 12:30 AM.
Old 27 June 2010 | 12:42 AM
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roughly

plugs £30 new ebay

remap £350 open source by race dynamix

panel filter £40ish

pump £70ish from lateral performance

full decatted exhaust at 3" around £450 for something like a nur spec 2nd hand on here

emisions.. find a friendly tester or get a sports cat 2nd hand

pretty cheap really
Old 27 June 2010 | 12:43 AM
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think with the ppp car, just a panel filter and remap will get what you want, maybe a deresonated centre section to get the noise a bit better as well.
Old 27 June 2010 | 12:46 AM
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Originally Posted by Pink_Floyd
Guys,

I've made my mind up to buy an STi once my current car is sold. Ideally one with the PPP already on it to save hassle. However reading Andy Forest's site it appears 310-340 is not massively expensive it would seem.

However the stages show the car would need a decat, how does this affect the MOT emissions?

Also what's the rough cost of the parts needed below?

Full Decat turbo back 2.5 " or 3” bore
Walbro 255 l/hr uprated fuel pump
K+N panel filter
Ecutek custom remap
Twin boost set up for high/low power switchable in-car
NGK PFR 7B uprated spark plugs


Thanks guys

To get 330-340 bhp on an 03 onwards STi PPP you just need a decent re-map (if you get the bug STi PPP you will also need the walbro at about £90). The sports cat is good for ca 400 bhp IIRC, so no need to decat. Cost about £600-650, including licence fee, for the mapping.

dnc

Last edited by dnc; 27 June 2010 at 12:48 AM.
Old 27 June 2010 | 12:46 AM
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Thanks guys,

In reality I might have to settle for the STD STi but even then I'd look to take it up to the 300's

So daz, if I bought an STi with the PPP it'd be a case of just the panel and map as I'm assuming it has the other bits, or equivalents already fitted?

Please excuse my ignorance, I'm learning all about these cars but want to go in with my eyes open.
Old 27 June 2010 | 12:48 AM
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[quote=Pink_Floyd;9467486]Guys,

Full Decat turbo back 2.5 " or 3” bore
£300- £350 FULL TURBO BACK SYSTEM DE CATTED

Walbro 255 l/hr uprated fuel pump
WILL ALREADY BE ON A PRODRIVE CAR OR £60ISH

K+N panel filter
£30 OR GO FOR THE COSWORTH SAME PRICE.

Ecutek custom remap
£250- £550 DEPENDS WHERE YOU ARE

Twin boost set up for high/low power switchable in-car
CAN NOT BE DONE A AN ECUTEK ECU I THINK. SIMTEK

NGK PFR 7B uprated spark plugs
£35

Hope this helps
Old 27 June 2010 | 12:50 AM
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I tell you what, it's nice to come onto a car forum and not be treated like a moron! Cheers Boys!
Old 27 June 2010 | 12:59 AM
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If you want hassle-free MOT and no insurance worries, go for the PPP'd STi. In my experience friendly MOT testers are much more reluctant to be friendly these days. If you buy a std STi and buy a sports cat, try to get the prodrive or millteck 100 cell versions (other 100 cell versions have a rep for failing emissions on MOT and 200 cell is much more restrictive).

good luck
dnc

PS - regarding the moron comment.........there's plenty of time yet ;o)

Last edited by dnc; 27 June 2010 at 01:00 AM.
Old 27 June 2010 | 01:04 AM
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Can you tell us if its a classic sti or a newage sti,as they both require diffrent mods to reach the power your after.
Old 27 June 2010 | 01:07 AM
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Originally Posted by f4la k
Can you tell us if its a classic sti or a newage sti,as they both require diffrent mods to reach the power your after.
I'm looking at an 01-03 STi mate
Old 27 June 2010 | 01:07 AM
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true.. ^^ i assumed it was newage

also sports cat need to be driven hard before going to the mot station to get them working apprently so bear that in mind
Old 27 June 2010 | 01:13 AM
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Originally Posted by Pink_Floyd
I'm looking at an 01-03 STi mate
Reference to the PPP was giveaway for new age.
Old 27 June 2010 | 09:47 AM
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did the newage ppp not already come with a walbro fitted ?
Old 27 June 2010 | 09:56 AM
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Twin boost set up for high/low power switchable in-car
CAN NOT BE DONE A AN ECUTEK ECU I THINK. SIMTEK
Pretty sure it can, or at least it says it can on their website.

To switch maps IIRC you fully depress the go pedal, then push the heated rear window button.
Old 27 June 2010 | 11:15 AM
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Go for the prodrive sorts cat (as fitted to the WR1) cat back system and remap. I don't know about you but the thought of de-cats these days is tedious, ie refitting cat at mot time, worry about roadside checks and (for me) the smell of the exhaust from de-cat when backing it in the garage stinking your clothes out!
Old 27 June 2010 | 05:37 PM
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Originally Posted by scooby2.5maz
did the newage ppp not already come with a walbro fitted ?
Bug STi PPP didn't, blob STi PPP onwards did
dnc
Old 27 June 2010 | 06:25 PM
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Would bother wasting your money with the prodrive as u will be taking it straight off
Old 27 June 2010 | 07:09 PM
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Originally Posted by -shane-
Would bother wasting your money with the prodrive as u will be taking it straight off
Explain why? OP is looking for 310-340 bhp.
Old 27 June 2010 | 07:14 PM
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I was getting 360 bhp from my 51 plate STi with the following mods. 3 inch APS exhaust with sports cat (DSAutomotive), 255 lph fuel pump, tubular headers, FMIC but understand TMIC can do 400 bhp and a GEMS ECU. I ran the GEMS as when I started modding mine back in 2004 Ecuteck was in the early stages and at the time was not going beyond 400 bhp now it does. Don't bother about an induction kit or VTA dump valve but get a K&N or equivalent panel filter and keep the OE dump valve.
Old 27 June 2010 | 07:57 PM
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Originally Posted by dnc
Explain why? OP is looking for 310-340 bhp.
My Friend bought his Impreza with Prodrive and ended up doing the following

full 3" Miltek with Sport's cat
Havery Uppipe
Havery Headers
Remap and he got 351.8bhp

Whats the point in paying extra for Prodrive when ur gonna be remaping the car
Old 27 June 2010 | 10:23 PM
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The other reason for buying with the PPP pack already means I should be hitting 300 straight off so if money is tight I am still hitting reasonable figures until I can save to modify.

Also the insurance is kinder to an STi with the pack, than an STi with mods to equal the PPP power.
Old 28 June 2010 | 12:57 AM
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Insurance do not see the ppp pack as a factory option on my 03sti ppp, unlike say a mini cooper with the chilli pack.
Insurance will only be able to classify it as a modified sti. Been there and its rather annoying. Later cars have these packs listed as a factory option with insurance companies so are cheaper to insure.

dipster

Last edited by davedipster; 28 June 2010 at 01:03 AM.
Old 28 June 2010 | 01:04 AM
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Originally Posted by davedipster
Not true.
Insurance do not see the ppp pack as a factory option on my 03sti ppp, unlike say a mini cooper with the chilli pack.
Insurance will only be able to classify it as a modified sti. Been there and its rather annoying. Later cars have these packs listed as a factory option with insurance companies so are cheaper to insure.

dipster
I find that strange as when using confused they have the car listed as an actual model???

I also contacted Sky insurance.......£4.3 K

I'm 30, SP30 in 2007, zero no claims at the minute due to an outstanding accident waiting to be settled. I'm not at fault but the other party is dragging their heels....... The Mrs would be added as a named driver which always brings it down.
Old 28 June 2010 | 01:11 AM
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go jdm I have and they are better than uk ppp and have the benefit of being standard car so I have found no more to insure than a standard uk sti.
Old 28 June 2010 | 01:15 AM
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Originally Posted by daz1968
go jdm I have and they are better than uk ppp and have the benefit of being standard car so I have found no more to insure than a standard uk sti.
What do the JDM's have as standard Daz?

I've had quotes from everyone but A-Plan & Flux unless I've missed any. So far Admiral are cheapest but not sure if they'll handle an import?
Old 28 June 2010 | 08:33 AM
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Your mods will easily get you your target power.

As said it isnt worth paying the premium for PPP to start with as most of the ppp kit will be replaced with the bits you are putting on.

All you need is a base sti, decat (or sports cat) system, fuel pump and panel filter along with a remap and job done.
Old 28 June 2010 | 10:53 AM
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Originally Posted by Pink_Floyd
What do the JDM's have as standard Daz?

I've had quotes from everyone but A-Plan & Flux unless I've missed any. So far Admiral are cheapest but not sure if they'll handle an import?
Try HIC (basically the same company as Flux). They were the cheapest for me with my import.
Old 28 June 2010 | 11:14 AM
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Speak to Gary Moulson @ Keith Michaels insurance - 0208 288 0275. I have always found him to be very competative on prices. He can be a bit difficult to get hold of but it is normally worth the effort (only speak to Gary, he does the deals).
Old 28 June 2010 | 11:16 AM
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Originally Posted by daz1968
think with the ppp car, just a panel filter and remap will get what you want


I agree. I bought my `03 STi PPP a couple of months ago and it was around 284hp. I fitted a panel filter, had a remap at Scoobyclinic and now it`s at 336.5hp

Last edited by ScoobySteve69; 28 June 2010 at 11:18 AM.
Old 29 June 2010 | 12:33 PM
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If you have to pay for the PPP it is expensive for what you end up with. The PPPs I see are usually around 295/297 bhp and not the 305 claimed. As Duncan said above you can get a lot more for less if you do the package yourself. Full 3" exhaust with 3" downpipe, ported headers, fuel pump and remap. K+N pannel filter if you are keeping the car.



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