After replace better response.

It is indeed richer compared to the stock ones.

I done step by step upgrades to achieve my current FC to meet my ideal numbers.

Stock :
> injectors green ( slightly responsive than stock but FC a tiny bit more )
> K&N Air filter ( better response but FC much higher especially KL town driving )
> toyota vios air map sensor ( response becomes linear unlike previously sudden response , FC improved as like i'm running stock air filters )
> exhaust headers 4 - 1 setup ( best response and best FC i get on highway. If KL town driving with heavy foot then FC will become quite high )

Oh ya I left out spark plugs.

I did my first mod on my first service. Got my spark plugs replaced to iridiums.

Ori air filter did make alot of difference in terms of FC in my experience ( example k&n give 7.4L / 100km , ori filter 7.1L / 100km ) but engine response slightly dull.

At the moment i just learned that SC allowed customers to bring their balance oil for next service usage, so i came up with this idea to pour in my choice of engine oil into perodua oil bottle ( fully synthetic Bardahl 5w/40 with B1 oil additives ) and kindly ask them to use my balance oil

This post has been edited by lonelylipig: May 31 2017, 10:26 AM

ya true, i last bought my k&n from kakimotor like 2++ , bought because i thought it would same the same effect as my prev kenari manual but yea below VVT kicks in it does felt abit sluggish.

a little correction to previous post, i pour in my choice of oil to perodua bottles instead of just handing over my choice of oil in new bottle

well still abit hesitating to service outside perodua SC as kinda worried with their A/C prob and absorbers .
next yr my car will be 3rd year and more than 100k mileage, see if its still good to send in to perodua SC.

My 2015 Alza SE comes with BKR5E-11 plugs .

As what i observed , from my previous P. Kenari to current Alza SE it comes with cold rating of 5 for NGK plugs. Maybe a cold rating 6 is usable but not 7. If it has too cold of a rating, carbon deposits might not burn properly and stick on the ceramic ( white ) tips beneath the nickel/copper tip.

Once i saw 3rd party workshop replace Denso K20R-U11 to Myvi 1.5 .

Just my 2 cents.