Hi guys..
i'm driving a 2002 Wira 1.3 EFI VDO manual...
I'm planning to get a set of new spark plug for my car...
i want to try out the Bosch Super 4 spark plug...
So, which model of Bosch Super 4 is suitable for my car...FR78X or WR78?...
Anyone use this spark plug before?...mind to share your experience and how long it last?

Thanks alot in advance guys..

This post has been edited by SinS: Jul 7 2012, 01:41 PM

i tried on wira 1.6, just like normal . not much diff

dun ask me which series, i know only 4 jaws surround the core.

This post has been edited by joshuaa85: Jul 7 2012, 02:11 PM

Wira 1.3 EFI VDO user also.

I recommend you stick back to the standard NGK spark plugs & save your money.
Sorry to splash cold water on you,SinS

Last time I tried Bosch Super 4 on my old Sunny even, thinking it will bring extra power, actually it doesn't and FC still remains the same. But my Sunny was "happier" on NGK Platinums.
This is because if you Google for Bosch Super 4, mostly says "no difference".

If you still insist wanting better plugs then you can try NGK G-Power Platinums. I tried it and it was fine with me though

If you want better power actually , change your spark plug cable to new ones, even change to ori spark plug cable can also. 2002=10 years old car, you should consider changing cables although it's not spoilt yet.
I changed my old spark plug cables to new ones, and it brings back the 1.3 powah (and smile).
And don't forget to reset the ECU for it to relearn the ignition timing curve.

This post has been edited by SleeplessEyes: Jul 7 2012, 04:51 PM

get iridium spark plug

I've change the plug cable to Bosch Super Sport cable...My mech change it before asking me...
The reason i wanted to try Bosch Super 4 is because i want a plug that last longer than normal plug...
As my engine is all stock, does using platinum/iridium plug will give any noticeable improvement or its just negligible?

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Added on July 7, 2012, 6:15 pmDoes iridium plug really improve the performance of my engine as my engine is all stock?

This post has been edited by SinS: Jul 7 2012, 06:15 PM

dont bother with plug n plug cables... especially if ur engine is stock...stick to stock... and change plugs every 10k km and ull be fine.

Agree with you bro...
Since my engine is still stock...

if wanna change brand please use the same code for it.. diff code got diff spec..

And in term of performance, copper is always the winner.. but its not last long.. 20-30k km max.. while iridium and platinum can last longer like 90k-100k km but its has lower conductivity compare copper..

So you want better performance choose copper..
Want better reliability choose iridium or platinum..