Oh! sorry, I was replying to you that mine is daily ride also, and on second engine as the timing snap on first engine, then recently after 9 years the turbine failed also...

I am not sure because I have never go check before. Really need to find one day free to check

They should have, anyway most of the ones here have.......

It's hard to find in Sabah because Sabahan are very stingy one...

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Added on December 7, 2011, 9:32 amThis post has been edited by Jajay Chong Hon Keat: Dec 7 2011, 09:32 AM

But rich......
or no wonder they are rich......

search at Garage Sales here and ask the seller to post it to you.
cheaper than wasting fuel going round and round asking 1 by 1 shop.

Ya... You are right bro. But I still have two new spark plugs at home. Can find slowly =)

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Added on December 7, 2011, 11:41 amHahaha because sabah has no place for us to spend money...

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Added on December 7, 2011, 1:33 pmHey bros and Sifus... Anyone know where can I find the suitable series of Bosch sparkplugs for my car engine 4g15 carb? I just found a Bosch dealer here...

This post has been edited by Jajay Chong Hon Keat: Dec 7 2011, 01:33 PM

2 new plugs or 2 sets??

Two sets
Oh ya~ I found a bosch dealer around KK ady~ Can anyone teach me how to find a suitable bosch spark plugs for my magma 4g15 carb engine? Better give me the series number

They should be able to tell you if they are Bosch dealer.
Anyway, for Bosch the heat range is reverse.
Jap plugs like NGK 5 - hot, 7 - cold, meand bigger number is cold
Bosch 6 - cold, 8 - hot, means bigger number is hot

Erm... I can't get any messanges orh... What is cold and hot?

Oh! you don't know about Hot plugs and cold plugs also. Well certain engine are designed to run hot, so they use cold plugs. The plugs helps to cool the engine. Or if running more on highway, cold plug is used.
Town driving usually hot plugs are used to help complete combustion.
Overall just follow your car manual recommendation on the plugs.
I posted the hot and cold just for your info because you want to use Bosch and if your car is running on NGK number 5 plugs and the Bosch dealer gives you a Number 8 Bosch plugs you may be confused. So now at least you should know NGK 5 is Bosch 8....hope you understand up to here?

Wow... That's mean NGK is better? Because it' is cold? How about denso?

Looks like you still don't get it. Does not mean cold is better. Cold plugs drive in town may build up a lot of carbon if the combustion is not complete.
The number are just for guide in changing from NGK to Bosch.
For Denso they use 18, 20, 22 and so on. Smaller number is hot, bigger is cold.

Hmm... It really confuse for me. Since I always drive high speed in highway, cold plugs are more suitable for me kan?

Nope, just follow your car recommended plugs....change Brands, then follow their chart...

Change whatever brand I want, just follow their recommended series?

Yup, now you got it ........ha! ha!

Will plugs have big effect in performance?

plugs won't give extra power, it will give better sparks which in turn give better combustion and helps the flows of engine operation running smoothly.

actually such information (ie. how thing works) can be easily obtained by just googling.