Then can get better performance lor since it has no misfire those...

I think you got them backwards. Without misfiring the engine runs at it's optimum performance but not over.
If you compare with a misfiring plug then the performance is better.
Compared with a good running plug of another brand should be the same....

Any idea where to get Denso FK20HBR11 or NGK DFH6B11A spark plugs?

Been sourcing this and found out that the differences in price for some shop varies from RM10-RM40.

Theres a spare part shop in PJ right beside Pan Cafe/ Robin Hood Pub..prices there are pretty reasonable and consistent

Thanks I'll drop by and have a look.

theres 2-3 shops in a row..go to the corner shop which is kinda closed up, good prices there.also right behind that row is a bawah pokok mechanic (siva i think) who can do basic mech stuff for reasonable prices

The shop you mention, they are spare parts shop is it?

The plugs that I'm looking for not every shop have it, that's why I'm having difficulty to get a good price for these.

for wat car

NGK DFH6B11A this code looks similar to the ones I used on a straight 6 beemer..

Which spark plug is better? For improvement in FC and HP.

1. Denso iridium racing spark plug
http://forum.lowyat.net/index.php?showtopic=1892138&hl=

2. BOSCH iridium fusion spark plug
http://forum.lowyat.net/topic/1145774

Or any recommended plug?

Thanks.

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Added on January 19, 2012, 3:12 amFor wira 1.6 auto

This post has been edited by joequah1: Jan 19 2012, 03:12 AM

wira 1.6 NGK ix iridium or Denso iridium enuf lo

any good spark plug cables to recommend for iswara 1.5 AT (1999 make) ?

theres 4 plugs/cables

Denso iridium and denso iridium racing different?

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Added on January 20, 2012, 2:49 pmThere are few types of iridium for den so. Which one better? Plus, power or racing?

This post has been edited by joequah1: Jan 20 2012, 02:49 PM