Hi all,

I'm new in exhaust system..but willing to learn so I can mod it later for my Wira 4G15..

As in first post, TS recommend PowerZone 4-2-1 for 4G15..wanted to know how much for this in KL area?

Besides that, it is necessary that we change whole exhaust system in 1 shot? Currently I'm planning to change my extractor first..because current extractor seems rusty and look "thin"..

yes should change all 1 shot... if not its an half arse job...

Then what is the roughly cost for the whole system?

power zone can cost u up to 1.2k above
ciplak roadside can go untill 500
i go fren got shop can do straight out for free

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Added on February 6, 2011, 4:01 pmthat is for ppl stupid taklak otak cucuk ur behind until u can see his hidung lubang and scare him off to back him up
olso can annoy neighbour that u dont like alot
olso can for lala chai in kampung wan impress girl

for me i get a huge grin everytime i scare a daylight out of every1 around me
after i do it ppl near me dont dare come near me
hahahahahhahahaha

This post has been edited by sinister_sid: Feb 6 2011, 04:01 PM

Rojak exhaust system compare to whole full exhaust system which better? Heard that if custom made in the right way better than the whole exhaust sys and it is cheaper rite???

Full exhaust system powerzone and hotbits which suitable for S. NEO?

custom made usually more expensive, depending on which workshop u go to.. and custom made not necessary better as the person who customs it for u might know nuts about ur car setup....

So, the safest bet still go for recognized full exhaust sys? Like hotbits full set???

safest bet (yet still cheap) is to find a fren with same car who already did his exhaust mod, test drive his/her car, then copy his setup. from there, adjust accordingly (midbox distance from flexipipe, orientation etc)

yes

Actually most of the exhaust shop will carry those branded exhaust system? as I know they more to custom..

biasanya no
they custom 1 for u they untung more
pipe besi and welding only ma
if they help sell no untung so much

only large exhaust shop carry branded exhaust system because they need to stock in goods... not all exhaust shop as the cash flow to do so....

Hi all, i'm new in these, want to ask about intake manifold area i think, in 4g13 carb, the air intake take in exhaust hot air thru a small pipe into the intake piping. I thought cold air is better for engine?

(that's the stock config. )

that is not necessary especially in hot climate country like malaysia... warm air intake is good for cold start to stabilize the rev and warming up the engine fast...

just unplug the hose from the exhaust manifold heat shield and do a proper cold air intake for ur engine...

Why standard exhaust system more save fuel?

not necessary that standard exhaust system is more fuel efficient.

oh... cz i wanted to extend the piping for the air filter kone, but the person at the shop said no need, take hot air only good, then show me the piping from the exhaust heat, i still said cold air better, till i bcame confuse.. then din change lo, haha. thanks for your reply,

cold air is better... dun listen ur mechanic sinkalan...

Hi all sifu, sorry if my question had been ask before .

I currently driving a iswara aeroback with 4g91 EFI , Current exhaus set up is .

- Open pod intake
- 4g93 Dohc extractor header , but 2-1 using mivec
- 2 inch paiping from front to rear follow the original paiping bending way
- Center swirl bullet
- Marco S-flow muffler

Now my top speed only maintain at 150 , how to make it more ?

Before that is using standard iswara paiping with 2 swirl center bullet and also the marco s-flow, simply can go to 180 . Now after change to 1 center bullet and 2 inch paiping . My top speed drop .

With the latest setup up , the exhaust sound abit too bissing . I am planning to change away the muffler , hope to get back the top speed. I more like top speed rather then pick up as i use highway daily to work .

Please give some advice . TQ . S-flow , straight or twin loop ???