I've just had the MOT done and the car (MY07 STI) failed on a broken front spring.

Ordinarily, I would have just bought a pair of replacement front springs from ICP, however, it is fitted with the red Prodrive springs which I'm guessing are no longer available.

Any idea what my options are? Is there an equivalent spring available or do I need to swap to a completely new set (and change the rear too)?

The other thing is that the car has done almost 80k miles so I'm worried that changing just springs on what is presumably well worn suspension may throw up other problems....Would it be better to swap the lot for something like the Pedders or Tein kit?

Dibs

 

Speak with @2pot , he may have springs that suit your car.

 

Thank you @fpan

Yes, I have a spring set for that car £325 delivered. They're 10mm lower at the front than the red S05 Prodrives. The red S05 Prodrive fronts were 18mm lower than the stock STI.
The Prodrive springs came with different front bump stops, for inside the strut. These were shorter bump stops due to the lower front ride heights. Front and rear stops for inverted struts £55.
New MY07 sti inverted front struts, made by KYB, are available from Subaru in the UK - very expensive.

Or, KYB do after-market inverted struts to import from the US.
Fronts
https://www.rockauto.com/en/parts/ky...035,strut,7584
https://www.rockauto.com/en/parts/ky...036,strut,7584
£450 delivered inc import duty and vat, at current exchange rates.


Additional info:

If you want new front inverted STI strut dust boots:
2 x 20322AC000 https://www.importcarparts.co.uk/par...y=&searchPart=
The above image is wrong - it's showing rear inverted dust boots.
Don't order 20322AA000 by mistake! - those are the standard non-inverted front dust boots.

If new cone washers required 20326AA000
2 x https://www.importcarparts.co.uk/par...&var=0&dc=&gen
Make sure you fit cone-side up INBETWEEN the top mount and the spring perch.

Check the front top spring seat central locating holes for circularity, before re-assembly, as they may have been incorrectly tightened/damaged/made oval in the past.
If damaged:
Front perch 20323FA000 https://www.importcarparts.co.uk/par...y=&searchPart=

Front upper rubber isolator - 2 x 20325FA000 https://www.importcarparts.co.uk/par...y=&searchPart=

Using 33N/m lower nut torque removes the, very real, possibility of rounding off the flats on the base of the strut housing, or stripping the M10 x 1.25 pitch threads on the damper insert. Removing ALL grease transfer onto the M10 threads, before torquing, is important.
Torque incrementally: 10, 20, 30 then 33N/m
If using thread lock - max 26N/m

You can lightly grease the strut housing rubber seal, before re-inserting the damper insert - reduces the chance of inverting the seal.

The stiff front stops are tricky to remove (the rears are much softer/easier).
Best to put the M10 end of the damper insert on hard ground and slide/press the bump stop towards the ground. That helps clear the first/tightest node of the bump stop.

The OEM/KYB front stop is 60mm, the Prodrive front stop was 50mm, the replacement front stops in the video, are 40mm.