+ 1

Can't go wrong with that list!

 

Thanks Jura, thh turbo upgrade will have to come later on in the year, for now I think I'm gonna run with the following:

Fuel Pump - Bosch/walbro @ £70
H&S mid pipe 2.5" @ £108
RCM Designed Tubular Manifold & Venturi Up Pipe @ £594
Remap @ £300

Total: £1072

RCM do a Manifold Fitting Kit @ £84. Will a kit also be be required for the H&S mid pipe?

 

Contact Mark@Lateral Performance or Harvey(he selling for around £430) for GT Spec headers,they're same like selling RCM,just RCM put there badge RCM.


Manifold fitting kit,i wouldn't brother,just buy from Import Car parts new gaskets(don't buy cheap gaskets from eBay),you can use your old studs.

On mid pipe i would use existing bolts(or you can buy them cheaply from elsewhere),pus gaskets as above Import car parts.


About the turbo,look for bargains elsewhere(ebay,forums etc.)

Jura

 

Just checked out Lateral Performance GT spec headers and up pipe; £582.00 plus also get all the fittings and gaskets included so looks a much better option to go for!!

 

How much do you think all this would cost to fit? is it worth taking to specialists or can any garage be able to fit it?

 

Fitting headers is around £70-£100

Fuel pump fitting is around £50(or you can fit,its easy job)

Exhaust around £50-£100

Best bet is taking car to specialist,prices are various,but depends where are you located and ask here for best suggestion.


Jura

 

Well need a fair few things doing so may need to visit more than just the one specialist. I sometimes wish I was more experienced and confident in doing things myself. I really am envious of those that pay like zero labour as they do it all themselves!

 

You need to chat to Mr. Arthur Carter...

Or Bigarf as he's known !

I personally wonder if tubular "headers" will be too large to spool a VF35 efficiently, whilst being very much suited for use with a larger blower later on ?

dunx

P.S. I managed to fit mine O.K. and most will agree I'm certainly not gifted...

 

Any exhaust place will fit the midpipe for a drink and the fuel pump is easy about half an hour tops no need to remove rear seat it will come out inside boot I have done it 4 times now headers can be done yourself but need to allow half a day but if you not confident sort out a deal with who is supplying them, but I wouldn't bother just go with a Harvey uppipe and an 18g turbo instead. The turbo will limit you and is the single biggest thing needed to get upwards of 340bhp no matter what supporting mods you fit. If it was me I would just change the mid pipe, panel filter ngk7 plugs 18g turbo and get a remap don't think you would be disappointed, I thought ppp fuel pump was a rebadged walbro anyway, if you want some headroom fit 650cc injectors as well, headers won't make as much difference as the turbo so that where my money would go

 

My bad, it's pronounced "FroST1"

And I collected my 2.1 Cosworth/Lateral/Enginetuner hybrid today !



dunx

 

Buying the turbo though would probably put me over my budget! And I think I would want a new one which is covered by some kind of warranty from some of the specialists. I think the turbo upgrade can come later?

 

but you'll need two maps doing, one now, and another one later !

evil dunx

 

Just fit the midpipe, ngk7s, panel filter and have a remap then, you can do the headers at a later stage when you upgrade the turbo, I wouldn't spend my money on them yet. This will be more than capable if maxing the vf35 out, or blow all your money on a 3 inch milltek with sportcat and a remap

 

Well that would always be the case unless I was to do everything all at once. Which I can't afford. I was planning on adding a turbo towards the end of the year/early next year as I'm in no rush to hit 400. Will be good to just get the car up to a safe & reliable 360-370 within a £1000 budget

 

Well in that case I will leave the headers save out, what about the up pipe though?. I didn't realise the vf35 would be maxed out on the mods above. What kind of power do you think the car can make?

 

Also will changing the up pipe and the mid section effect my MOT due end of next month? thinking of going for h&s on both. Also will the exhaust note change?

 

Change everything after MOT,you have just one CAT and this is it in your sport cat.

About the H&S up pipe,your STi is good too,but definitely worth upgrade to Harvey Up pipe(PM him here and ask for advice)

With Sport cat you will pass MOT,you have at center pipe just resonator,not cat.

Headers leave like is it,if its budget tight just upgrade your u pipe to Harvey and you have nice spool as well,this Up pipe will bring spool down to lower RPM.

GT spec headers are recommended if you are going above 400bhp+

Jura

 

Right Jura thanks again for all your advice you been really helpful will pm Harvey regarding the up pipe, any preference on the mid section are most the same more or less h&s RCM Harvey etc? Also by changing the two mentioned will the exhaust note change much? Also thinking of changing the pro drive back box as I miss the sound my previous sti gave with it's tsl firestorm. Will there be any notable difference in power with a back box change?

 

Hi there

Mid sections are same,just makers thinking no,if you want nice and louder sound go for non resonated center(Cobra,H&S orif you want expensive go for Miltek,which is not worth money),TSL firestorm i never tried,but mine old TSL Group N has been very nice(again Cobra or Afterburner are OK,H&S are pricey with Miltek,if its worth not sure,because few people reported Miltek have problems with welds)

No noticeable increase,just marginal from change of backbox.


Jura

 

Thanks again, have pm Harvey regarding the up pipe. Will prob go for the H&S centre pipe and one of the TSL back boxes (should be loud enough). Will keep you posted on how I get on!! Thanks again to you and everyone else who contributed to this thread, much appreciated!!

 

Excellent news, waiting for results patiently

Unlike you my "toy" has only been in my hands from 2010 and not birth, as such im looking at ideas going forward as a track toy seems to be the right choice

 

one word, billet,,,,, lol

although i think that may kill the budget, worth 'expanding' the budget for it though

 

Right after speaking to Harvey and others I have decided to go for:

Full 3" cobra decat system unresonated from turbo back with wrapped downpipe.
Harvey ported oem headers with wrapped up pipe
Walbro 255
Green cotton filter
NGk spark plugs
Remap.

Hopefully will be able to get good power gains.

Later on this year/early next year will go for 18 or 20g, larger injectors and a fmic and CAI. Will keep you all posted as to the results. Thanks for all your advice and guidance (thanks Jura11 for recommending Harvey, he was very helpful and uber informative).

 

Good choice,and as i said Harvey is very helpful.
As i said don't spend money,if its not needed and don't chase figures,everything have time to do.

Good luck matey and hopefully you will made nice bhp


Jura

 

Just seen this thread. I used to run 360 bhp on tubular headers (cheapo set which broke so went for a set of RCM headers). MRT (australian company) FMIC including induction kit, uprated fuel pump, APS (another aussie company) 3" exhaust with sports cat. But in 2004 Ecutek was not to the level it is now so went for a GEMS ECU which gave me 360 bhp on OE internals and turbo. When the turbo showed signs of loss of boost I changed to a FP green turbo with 650 cc injectors and paralle fuel mod. This took me to 400 bhp, due to damage to the exhaust I uped to a 3.5" de-cat and now show 440 bhp

 

Been reading this with a lot of interest as I have some cash to spend. MY03 STI ppp has 3" full decat, green panel filter, ECUtek remap and at 323 HP. I am after 400 ish.
Question - if I get Harvey Ported headers with Up pipe or GT Spec headers with Up pipe can I stay on standard turbo? I am thinking of going for a Md321h but not just yet. Need Xmas out of the way first.

 

I've got a GT30, headers and up pipe for sale soon.. cheap!

And all other goodies to get you over 400bhp without breaking the bank.

See my breaking thresd.

Rob

 

I'll be looking

 

Any chance of a link to your thread rob?
Thanks

 

Here is link

https://www.scoobynet.com/full-cars-...i-400-bhp.html


Jura