I looked in manual and it gave the number w21w for indicators (blob eye) what does this x-ref to? Im after some silver ones

 

I have Philips Silver Vision bulbs in the front and rear lights on my 05 STI.The part numbers on the boxes are WY21W 12v 21w.Got them from here along with free side lights.
Car Bulbs from Power Bulbs - upgrade xenon car bulbs, headlight bulbs, autobulbs and autolamps from Philips, Osram and Narva. Philips X-Treme Power, Osram NightBreaker, Osram Silverstar and more.

 

Whatever you do, DO NOT buy them from the seller on E-bay who's advertising indicator bulbs for the blobeye. He hadn't a clue what type they are so sends some random ones out and it's not very easy getting in touch with him to try and sort it out!

 

Hi mate I have Silvatec bulbs in mine They ref to them as T20 Wedges. They are cheaper than the phillip ones but look identical. I got mine from Torque Performance in Wolverhampton along with my other bulbs he did me a very good deal he does mail order too.
Regards Dean

 

Are there no cheaper alternatives? £27 for 4 bulbs seems steep!lol

 

Try John at Torque performance on 01902 712834.

 

"big *******". Think small w5w, then magnify it 2 times over. They're still a wedge type of bulb but erm... substantial.

J.