my one cannot lo even full throttle..will change once hit 6.1k rpm..fast dig out from ur phone,wanna knw ur mid setup lo..my one bullet and midbox distance onli around 4inch..is it can cause the sound more louder?

ur setup was same as zeng setup..even the sound oso almost same..tats why i think maybe due to distance of bullet and midbox can cause sound more louder lo..maybe will affect performance oso below is my mid setup

Means their S-flow all very bising lah..
It depends. If ur bullet & midbox too near each other, the backpressure that's created is slightly larger, as they do not have a smaller pipe to travel. This would then affect ur acceleration.. Think of it as a straw that u drink from.. If the straw is too narrow, the water that comes out is slightly faster but at a smaller volume at a time.. But if the straw is too thick, the water comes out slower but more at a time.

u mean in the car cant hear the exhaust loud lor??
hmm...mine around 1 month more. 2years. but got extended warranty.
i am wondering is the post in the 1st thread the only symptom of iafm problem.
recently i can hear those sound. but not during cold start 
hmm...i wonder y our car last better. PE the symptom come out so early.
Another Apexi. hahahaha~~ur iafm also kong??
wat bout 3rd and 4th XD. mine all can except 4th XP
y dont u go tune ur car. my car stock but can.

4th gear u can push till 6.5k u'll be running at ~220 KM/h liao la..
Not totally wrong lah. It wont cause ur car to makan minyak (maybe it does, but very very minimal/negligible). With adequate backpressure u get good top end power, but low end suxxo lo. Too much backpressure will hurt ur low end power badly. But if u're ok with the current setup, means it's fine lo.. If u wanna reduce the noise, maybe u should try to install mid muffler that comes with heavy insulation. Also ur muffler, to know whether it's properly insulated or not u can just tap lightly on the muffler's body. If it sounds hollow, obviously it'll make more noise when installed.

If u suspect better go claim fast lo. Don't let them talk crap tell u it's not IAFM bla bla..

then i guess should be cap ayam lor... 

Chill man. Drive fast fast wan go where? XD GF see u speed means chop u to pieces + at night no siham hor?

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Added on August 10, 2011, 10:22 pm
U wan hotbits/powerzone u have to go to their dealers or Speedworks la.. Those cap ayam exhaust shop dont sell all these wan la..

F%$#!! @^&$%@#$*!@#$!!! Missed consolation prize on Magnum.. Straight number samore..

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Added on August 10, 2011, 10:36 pm
If it doesn't fit nicely it's not called custom made d la..

Dude, there's a shop in Malim. CK Exhaust. I did most of my exhaust system there. HotBits 4-2-1 extractor & mid box plus a s-flow muffler. Most shops in KL charge RM580 for the extractor. They charge RM480 with installation

The shop I mentioned is opposite Public Bank. I dunno about HY. Met CK by chance. I did most of my mods there; exhaust, spark plug cable, LCP, stability bars and even bodykit. So far, I have no complaints.

xan,where can tune my car oh?since my one always will change gear once reach 6.1k rpm even full throttle lo so far i still satisfy wit my setup..after 120kmh can feel more power lo..hehe..

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Added on August 10, 2011, 10:52 pm

from 120-195 fast reach or not?

No money buy mah. The night before I already plan to bantai 10 bucks straight on that number. See see open wallet lalat mati pun tarak.

who sat in the putra b4 tis?my fren putra was totally dun have additional soundproof for whole car..but he stated when raining,the car still very quiet even roof oso dun have "tak tak"sound lo..he stated is totally different wit his previous wira..the windnoise oso a bit onli..after hear wat he mentioned,seems like our persona more noisy lo

u oso agree putra has better NVH than our persona??

yup,it can use DIN55 battery..but better dun buy maintenance free battery..not last long..b4 tis i work around 4yrs at yokohama batteries company,so i knw it..so u will feel better than wira or waja?

So fast kong? 
My still in good condition *touch woods* 
Any recommendation for battery?

Oh. Thanks.
btw, do you know the price?
My dad support century as well 

Confirm ori? How much?  
I bought my castrol edge RM 188

dun need so angry gua i juz wanna knw whether is true or not lo..since putra new car price is near to RM80k,so i juz wanna knw whether putra NVH is better than wira or not lo u drive putra b4 tis?

maybe due tohis exhaust noise lo..but honestly,do u think the wira and putra NVH will be same???since the price of wira and putra was much difference lo..so if consider price range,wira and persona are cheaper than putra lo..so maybe will be better NVH for putra,isnt it?

our PE aerodynamic is  lo..tats why NVH not good as putra,rite?my fren car was use adjustable absorber and 17inch rim wit 205/40/17..according from him,the car still feel stable when cruising 200kmh..original putra weight is 1075kg,but his car is 1170kg nw..got 3 amp and 1 12inch woofer in car..somemore engine oso transplant to evo3,i think tat cause his car weight more heavier than stock lo

his one modify ady..cant compare lo..200kmh is nothing?u means PE?do u feel PE run 200kmh,the stability is acceptable or not?

lets bulk from ur fren...
ask him give frenship price!!!
haha mask rider!!

klang valley should be ok gua...or he have any shop at KL?
then forumer can go there buy...

how much u bought?? from time to time i go Malim Jaya at tuesday...
may be can get there leh... if not mistaken u change exhaust system there right?

No wonder you are so excited when vccy can get cheaper price.
Hey dorinyeah, you organise the bulk and bring back from Melaka lah.