NGK resistant type is not wrong.. So the spark plug have word "R" on it.. So far NGK doing well & its very trust able brand... So don't want to take any risk trying other brand.

that's normal. i even change my engine oil in the same month
that's for 7500km

Need to check my receipt to confirm... around that price ba... Danny, what tyre size u using now?

Hmm correct size for your speedometer accuracy. U know y? Cos I found out that real tyre size for our speedometer accuracy is 195/60/r15. Stock tyre at 195/55/r15 our speedometer reading 6-8kph faster than actual speed. So for upgrading rim de here is the guide.

Size according to speedometer accuracy:

Stock size    195 /60 R15
Up 1 size          205 /55 R16
Up 2 sizes          205 /45 R17
Up 3 sizes          205 /40 R18

This guide only set to nearest accuracy for speedometer reading.. Still got 1%-2% different.. Enjoy

nah, you can always pump it to suit your own driving style / environment. just don't pump under 31 psi because it will increase the rolling resistance and caused an uneven tire wear / increased fc.
you can set it at 34 psi front and 32 psi rear then. 
but make sure you pump 'em during cold tire temp.

since you bught your tires from the shop, nitrogen should be foc.
good thing with nitrogen is you don't have to check the tires pressure very often

only reason i bought is was the discounted price during auto show.
else, i won't give it a damn 
performance wise, quit ok...

u wish la bro... it will nvr happen.. yesterday i try my 4g18 at 150.. i sked liao.. sound like wan to xplode

paid 100 bucks upfront during auto show. paid the rest during installation.
cost less than 250 bucks if am not mistaken. that time they just making inroads into the market. hence their price is higher.
there is no way stock 4g18p can catch up with a stock 1.8 altis or civic on pick up but i've tested my waja auto 4g18p. good enough for 200km/h. feel quite stable at 180km/h.
light modded with everco exhaust but using gsr twintip, k&n drop-in and some modification on gearbox.

good noise insulation and good set of tires + good suspension + some guts will cover the car weakness

perhaps, you need to bot. speedworks has 'em under 10k 
then again, i'd rather swap to more powerful engine at that price 

how come can not reach?

Agree... haha... My ride speedometer back to normal tally with gps speed

Here, my teaser guys!!

RM45 for rear screen spoiler... My tyre size is 205/55/r16..

ya..

205/50/16.

Lolz.. haha... Your gain handling sure lose torque lo... Still ok for my ride new shoe, torque slightly lower than stock shoe. No chance to try top speed yet I still had cat con in my car, dunno when will remove it..

RM300 lo... all the BP haven call the seller ar? I install my self de... If wan i can help on installation without air bag version.. faster call the steering seller lo.. later need to wait for stock & no more BP price..

dohc usually tuned for efficiency and performance since it's easier to play around with an extra(dual) camshaft in dohc over the sohc(single).
but it wasn't as simple!
besides the changed compression ratio, thus affect the ecu thingy, wiring harness / exhaust / intake manifold and a few other things need to be taken care of as well.
the sohc 4g18p is already providing an acceptable amount of torque at very low rpm.
from my experience, the simplest of dohc conversion is more beneficial at higher rpm!

0-100 in 14 seconds? Are you sure?

14sec is definitely slow... but not too slow 
if am not mistaken, manufacturer claim also below that figure.
perhaps, slow due to the heavier wheels