Wakaka...JFA also shark There's one shop near Danau Kota, Setapak called Exss Work. Many people say his welding and exhaust jobs are very good. The taukeh drive a yellow Evo 8 one...easy to spot the shop

i changed my gen2 1.6 MT stock manifold to 4-2-1 extractor of 1-4-2-3 design with 1.6" stock diameter with an improved muffler. all stocks from Taiwan and costed me RM750 for everything.

will go for dynotest at SW next week to see got really improvement.

other mods only drop in K&N element and VS in terms of performance only. strut bars and Michelin Pilot Preceda PP2 195/55/15 for stability.

one question here, if i wanna improve air intake w/o doing big mode, what is the most cost affortable and effective way to do that?

This post has been edited by gigsvoo: May 29 2006, 11:38 PM

koyak u mean is bocor??
my extractor is stainless steel one

-Wah kena conned? story la..
-So where's the altenative shop..? maybe puchong, serdang, kajang area..any suggestion?

-One more thing, the fiber in muffler can be replace or not?Any shop dat can do the job?

This post has been edited by arinsms: May 30 2006, 02:53 PM

I wanted to ask about modding an exhaust into mis-firing system like the WRC ones. I am aware that it is highly illegal but i am willing to take that risk. What do i have to do or change or modify in order to get that effect. I have a Proton Wira btw using 4G15 engine. Exhaust system is stock.

One question to you - what's a 1-4-2-3 extractor? I've only heard of 4-2-1 and 4-1.

If you do not have a turbo, then there's no point putting in a mis-firing system. If I were you i would spend that extra money (and the money saved from NOT destroying your exhaust system every month) on actual performance upgrades. But since you asked, there're a few ways to do it - an ECU upgrade or get this gadget called flame dragon.

what he really meant by his question is, how can I get the misfiring effect?
dat is by installing the kit you mentioned..
he already know that the misfiring originally can happen on turbocharged engine.

oh yea, you can use the qoute button to qoute 2 post in 1 posting.

This post has been edited by farique: May 31 2006, 10:58 AM

I'm sorry, I read his post after I posted my first post. That explains the two posts.

Neway, its not called "mis-firing" effect, the correct term is "anti-lag". But that only happens on a turbo engine, so fitting an anti-lag mechanism on a NA engine seems pretty redundant, and in my perspective a completely foolish action. There are a few ways to achieve the "misfiring" effect - the easiest way is to run the car rich, screw up the ignition timing and voila - instant misfiring effects as well as significant loss of power and increase in FC. One alternative way is to use a flame thrower device like the flamedragon, which you can easily purchase and fitted in any accessory shop that sell's em. That's my two cents on it.

The fire dragon or flame dragon add on kit is pretty useless to me.....
All I can see is fire comes out from the exhaust, nothing more >.>"
More like show off

i think he meant the piping joint on the 4-2-1 extractor

1 and 4 join together while 2 and 3 join together

i thought it was firing order!

can use for barbecue maa

btw guys

saw some of the extractor use mandrel piping.... what's that actually?

You mean mandrel-bent pipes. Mandrel is a tooling process that when applied to bending pipes, allows the bent sections to retain the same diameter as the straight sections (when normal bending processes reduces the diameter or create folds or other obstructions that might impede the flow of gasses). Its the most preferred method to create manifolds for use in race applications, if my memory is right.

thanks for da info

so far i see the pics of mandrel bent pipe, the shape of the extractor is quite "funny", many curves.

but since the mandrel bent design emphasize on the diameter size (which same across the entire length of the extractor pipe), why their design doesnt look like those "conventional" extractor design? for example for a 4-2-1 extractor, the 4-2 section for so called "conventional" extractor is J shaped, but so far i see the mandrel bent piping, the shape at 4-2 section was just "curly"...

sorry if i asked stupid question here... car n00b here

This post has been edited by sledgehammer: Jun 6 2006, 06:58 PM

Err I think you've misunderstood the meaning of mandrel bent pipes haha. The design of the pipes has nothing to do with whether its mandrel bent or not... mandrel is just a technique to bend the pipes, just like port and polish has nothing to do with designing an engine head. The design of the pipes is up to individual tuners, for specific usages. I think the one you see is a mandrel-bent pipe that is shaped in a way so that the exhaust pulses will optimumly scavenge the next exhaust pulses at a certain RPM range, meaning tuned extractor in short. And I also know some turbo manifolds are formed like that (we call it banana manifold) haha.

EDIT:

I think you should call it - mandrel-bent AND tuned extractor.

This post has been edited by soggie: Jun 7 2006, 09:02 AM

guys, need some suggestions
my civic EG is equipped with 2" pipe ori route + 1 bullet + tanabe hyper medallion non jasma.. engine is sohc non vtec, n apexi pwr intake
how do i make the sound not loud, esp. above 3K rpm, and make it rev lower to achieve 120kmh[currently 3.5k rpm]?
im thinking
1. use ori airbox back
2. add another bullet/or whetever u call it
3. soundproof my cabin n dont give a damn to the noise

This post has been edited by e-jump: Jun 8 2006, 10:18 AM

I can only answer one thing with confidence - there's no way an exhaust mod gonna affect your rpm/speed ratio. Means, no matter what you mod, you're still gonna rev the same amount of rpm to reach a certain speed. Speed per rpm is determined by gearing, not engine power. So a good exhaust mod will give you more power, or smoother power delivery, but never any affect on the rpm or speed.

icic.... it's the mechanism of the bending....
thanks very much!!