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Added on January 15, 2011, 10:33 amPoisoned kaw kaw.

Went to STY exhaust, 3rd mile Kuching to survey the headers GOT POISONED BIG TIME and ended up getting one. I have two choices. One, was to get the older design which is 4-2-1 also but the way the primaries meet up with the secondaries are in different config than the newer version whereby cylinder 1 and 4 shares the same secondaries and 2 and 3 cylinder shares the same secondaries and the O2 sensor is at the 3rd cylinder reading. The new version is the o2 sensor is located at the bottom end of the secondaries. Config of the new version is cylinder 3 & 4 goes into the secondary, 1 & 2 cylinder goes in the secondary. So meaning, the newer version have better flow out of the engine cylinders.......following me so far?

So anyways.... summary is.... i got these:
1. 4-2-1 header - RM300
2. Top Cat mid box replacing the original unit. To reduce metallic noise after installing header. - RM180

Results:
Lighter engine feel. More willing to accelerate. A bit of "zingy" noise at the header which is normal. Engine sounds less stressing when accelerating (its quieter actually, less of the engine roar noise.


Pics!!!!!!

The 4-2-1 header. Design is copied from Super Street headers. The other is the midbox from Top Cat.






Before


Pic showing the valves inside the exhaust port


Dismantled


I killed the CAT (catalytic converter)


This post has been edited by jasondotcom: Jan 15 2011, 10:34 AM

Installed









Relocated o2 sensor

fuyoh~~~ so nice~~~

Oh.....and i checked the stock diameter for Persona exhaust pipe.
Stock is about 1.8 inches plus. Almost 2 inch. The aftermarket headers are about the same....

Midbox is about 2 inch diameter.

All measured base on the inner diameter. NOT outer diameter. But the rear muffler outlet pipe is smaller... Didnt measure that though.

And if you noticed, the aftermarket header in mine does sit lower under the car... i would say its lower about almost an inch.

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Added on January 15, 2011, 10:46 amxandras: Chicken brand from "Uni" KL side. It is noisier indeed. Design is copied from Super Street. The 4-2 config is like Skunk headers.

Can hear "zing" noise that comes from the header which is normal for most aftermarket headers. The muffler (stock) at the back is slightly louder but not noticeable at all while inside driving.

If you are observant enough, the 4-2 join config is different from brands like Hotbits and Powerzone.


This post has been edited by jasondotcom: Jan 15 2011, 10:46 AM

still in pg, where can i get an honest car shop to repair my bumper damage?

Wah... Don't poison me leh How old is ur car? Auto/manual?

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Added on January 15, 2011, 11:05 amErm..Come back KL la i bring u around. LoL

This post has been edited by xandras: Jan 15 2011, 11:05 AM

One year four months.
Automatic.
Are you feeling poisoned already???!!

Oh, have u checked how is it like driving at high speed? E.G. 160-180 km/h. Any noticeable difference?

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Added on January 15, 2011, 11:08 amNo.

This post has been edited by xandras: Jan 15 2011, 11:08 AM

Later i will post pics showing the internals of the CAT, burned marks of it showing roughly how hot it gets and how restrictive is the stock cast iron exhaust manifold..... It gives you a picture (imagination / visualize) of how restrictive the stock header is with its CAT bolted right under the manifold.

To be updated.

Alrite guys, I gotta leave now. Gotta go to Semenyih =/ See u guys at the TT tonight!!

High speed? Not yet.

sure, next week i'll be coming back to kl. so far the bracket isnt break, but i'm not sure whether internal part sustained any damage or not(but seems unlikely, due to the bumper did not sustain any serious damage, it didnt break, but the paint peeled off)
last time i fix my front bumper cost me abt rm45, fair price? daymn!

but wow.. u took rm400 from tat guy!!

the balance is for the front bumper and the next accident

you really understands me

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Added on January 15, 2011, 12:46 pmif this case go to balai, i can still make full claim from him(change whole bumper), and he'll get early angpao which is around rm300

This post has been edited by fenrir0402: Jan 15 2011, 12:46 PM

updated ECU firmware to V3.9 just now
how come the buzzing sound still there, and the engine idling RPM still the same as before

like no changes at all

Haha at least u get a good start .. rm400 angpow....
btw how was the journey back... syok? cruising the highway from KL to penang?

rm400 i also not sure can cover the repair fees or not!
damn shiok! especially when overtaking trucks and buses, feels i've created an achievements, better than the achievements in l4d . but the bus driver like driving f1, they drive like michael schumacher.

hahaha i enjoy driving tat long stretch too !!

like midnight wangan? i felt at highway is safer than city road. i never realised penang motorist are so damn retard, especially motorcyclist. when i turn left, a motor potong me from the left and still honk me, what a retard. and also a pizza rempit, honk me from behind for no particular reasons...