yup...dats y people said hotbits for more to pick up, n powerzone more to high rev.... powerzone stuff r all matchup.. not sure ab others but for 4g13/15 is like dat. they manipulate wat they hav on drag race to wat they sell... basiccally, all their cams,extractor, head job, plenum, piping, r towards max feelin at 5k rpm...

weber... prepare at least around 1k include all tapak n etc..

edited: typo

This post has been edited by low yat 82: Dec 16 2011, 04:47 PM

dcnf, dgv,dfv all roughly inlcude tapak n install is around 1k.. i survey liao.. dcoe around 1.5k or above.....

errmm... u mentionin camshaft or cam pulley?


pls see back few pages back my comment ab powerzone cam.......

i see those rx7 vry kesian..



pekachu timing 1min 26sec coz spinnin.. anyway, nice try to him.

yup.. kar yong here saw u durin qualifying

using stock piping?

even tehre is no power loss, but physiologically, u will felt ur car not as power as b4... bcoz d sound is lesser. wit louder sound, it gives u mental boost...lol..

lolol

see already got mental boost la. other people see u drive a, all ah beng exhaust car senyap senyap already

who is d installer / tuner?

some forummer suggest u to try mugen twin loop style muffler


i think his problem kinda major.. lol..even wit 2 muffler n s flow muffler, his gf still complain its loud..


which shop/ tuner?

everco a? if d muffler they provide is super heavy type then d price is reasonable lo..

extractor 1xx - 5xx
piping 1xx-2xx
muffler 1xx - 3xx

ooo...means kweng's shop?

how come so expensiv? japan mali mia muffler ka? lol..

u r sayin midbox or oval muffler ?

he has a huge problem la..lol.. even wit 2 bullet n 1 s flow muffler , somemore stock piping, his wife still complain.. i recommend u to ignore wat ur wife say...lol....

my car also loud drone sound when rev near to 4k rpm 5th gear... d speed is onli around 120... dats y when i fetch my wife, i capped my speed to around 90-100.. d rev is 3k rpm, so she no bising bising me..lol

bising coz d muffler sound noisy la... haha.. but when she fall asleep i press kau kau till 120-130.. haha! when she wake up, i slow back.... =.=!

llolol..........

1. maintain ur piping
2. spiral r more suitable for extra large piping. straight flow midbox will b better choice. recommend topcat /matola/ everco (any branded local made)
3. depends d size of d midbox / bullet. generally, d manufacturer's midbox location r good for daily drive
4. MOST of muffler u gonna find is 2". d best is still same size wit piping but vry difficult to find. use straight flow. wit stock piping size, u wont suffer any noticable low end drop..

yes. more loud than sflow.

there is slight different between sflow n straight flow. like u noe, sflow gives u more power on low or mid hp, mean while straight is d other way. if u change from sflow to vice versa, u can feel there is different although not much.

if goin for halfcut, better make sure its japang mali, wit jasma tag (ribet on d muffler).

kanasai lu... u kasi besar itu piping of course la... generally, for most car straight flow muffler pair best wit stock piping..

if u wan cheap n cheerful, kweng shop is d way to go..

topcat/matola etc hav better inner side quality.. generally, muffler in malaysia r universal.. MOST r 2" inlet...... so vry difficult to find smaller size..

well... it all depends on which school of tuning u r at. some school tune for most little resistance to exhaust flow, some tune for best sound wave pressure, n alot more schools..

generally, people will tune for little resistance to exhaust flow.. when u r this type of school, then using 2" muffler is better choice.

generally, resistance for straight flow muffler; -100cfm or below, resistance for sflow muffler; - cfm for inner diameter divide by 2. this is rough estimation based on more well known muffler..

cfm for different piping is here..
http://www.exhaustvideos.com/faq/how-to-ca...-pipe-diameter/

u r r lookin for performance or jus wanna ganti it n hope abit performance gain?

if dat so, u shud PM kweng ab availability of ur model. change extractor n other lubang parts onli. dat is giv u roughly min rm200 to rm600.

wat u mean how to change? go exhaust shop..

yup. u r right. another 1 is mfa at garage sales.. d muffler he use is quite ok among local 1.. n he is honest..

wai heng is cheap n cheerful shop.. their workmanship is good. d muffler quality r so so onli since its darn cheap n when i go there, i seldom take their advise coz they onli wan do business..

dats d reason i told noct change extractor is enough d. n change d rest onli if its lubang.

huhu..

lu sekalang mau better low end a? but u need sacrifice high end power. u ok? lol

GENERALLY, 4-1 header hav more narrow powerband...but wit proper 4-1 exhaust system, u can hav both..

4-1 exhaust system r vry hard to mix n match... like all noe, 421 header generally gibs wider powerband improvement.. 4-1 header narrower powerband..

i guess u call them better..