Anyone modified header at SK b4?

[hilfiger]

Hi,

 

This afternoon went SK, was told that they can remove a small part of the header just before the end-can and replace it w stainless steel pipe. I was told the original header part they remove contain a stopper. So without it, acceleration will be smoother, petrol consumption will be lesser also. Costs $200 plus. Claimed to be same performance as aftermarket header, but at a lower cost.

 

Has anyone tried it out? Is it true the above claims?

[IceZ]

hmm..nv heard of tat...mayb some user can enlighten us...coz when u say mod means=louder,powerful n higher petrol consumption.i always thought tunnin n some wear n tear stuff do the tricks.

[hilfiger]

William at SK even showed me 1 of the few cut-off S4 exhaust parts that they have already done. He asked me feel the inside of the exhaust part, there's really something like a restrictor inside the pipe, like making the diameter of the hole smaller. That's what he called a stopper in the stock pipe.

 

So i hope someone in this forum who has been to SK for this service can tell us more abt it...

[fish1605198577]

its not recommanded to "open" ur original exhuast. next time u wana sell the value of ur bike will drop.. anyway if mod tis way the performance is the same den wats the use of aftermarket exhuast ? sure got different 1

[MiCmAsTa]

Its to replace the original ones right? Heard of it a year back when i'm riding my SPEC II. Act like those after market belly. 4-2-1. Something like that. They quoted me $250 for it a year ago... If a simple thing like that can make your bike more powerful, then i think yoshi, akra, Remus can close shop liao...

[raven77]

use screw driver hammer some hole can already somemore FOC.

[Kampong]

SK also ask me if i wanna change when i went there to weild my Suspension..

[Guest quizesilver]

that i heard.

according to someone i noe.

i does improve the overall. further more his is using stock exhaust.

i guess once it is remove the speed will be alot differ.

his setup.

 

spec 3

stock header minus the restrictor

stock end can

remove powercut

does jetting

knn airfilter

 

according to him being pace, the speedo is 220

 

so i guess it does improve. further more if u really remove it + micron/yoshi. i can't imagine. how loud and the power it will have.

then i see the welding too. oki lar. but u must ensure SK do it properly. once done look like normal pipe too but if u knock on it. it sound hollow.

[lindavw]

Ya. S4 pipes 4-2-1 there got 1 restrictor...

Removing it will have better performance... but it is only minimum la.its more of a placebo effect~

[Turbo08]

Originally posted by lindavw@Nov 28 2005, 07:29 AM

Ya. S4 pipes 4-2-1 there got 1 restrictor...

Removing it will have better performance... but it is only minimum la.its more of a placebo effect~

wat u say may be correct, "placebo effect"... but since quizesilver mentioned someone he noes has done the modification plus jet kit etc & managed to hit 220km/h leh. tats freaking scary or his "friend" dua kang ... like tat those buy aftermarket full system damn wasted

 

or scully their aftermarket full system can hit 240km/h ?? anyone can justify

[anodise57]

ask Floppy la... .where got 240??

Still still 190 then power cut le.. ahahhahaha

 

wanna go faster.. .Wait til get cl2.. Change bike la...

 

Street bike is meant to have certain speed limit for a purpose peepz....

[floppy]

Originally posted by anodise57@Nov 28 2005, 12:28 PM

ask Floppy la... .where got 240??

Still still 190 then power cut le.. ahahhahaha

 

wanna go faster.. .Wait til get cl2.. Change bike la...

 

Street bike is meant to have certain speed limit for a purpose peepz....

actually there's no 'power cut' and no restriction going over 190km/h. quite easy to go over the 190km/h actually. the only issue is rev limiter kicks in at 12k rpm and by then, u are already over 190km/h.

 

so there's no way of telling how much speed there is once you are over 190km/h since meter stops there and then. so it could be 200, 210, 220 or even 240 km/h

pacers, unfortunately, are also not known to be extremely accurate.

[Turbo08]

u said power cut le rite ?? ask him remove lah then will noe his real speed.

 

cl2 bike ?? u riding one rite ?? how many times u actually rode using the bike's power more than 50% ?? wat im trying to say is giving a rider in sg condition a cl 2 bike is quite under utilised even u go malaysia often, how often do u go ??

 

the expenses on a cl2 bike is almost doubled of a 2a. unless a hardcore tourer or racer in track if not really bo hua to keep a cl2 bike unless u v rich

 

im sure u noe palmer, u c he can go long distance maintaining 190km/h for so long & his bike never "chui" if the rider comfortable wif tis speed, then ok already mah. some can handle while some

 

anyway i noe ppl always say wan faster speed change bike bike lah... but ppl haven try handle 200km/h, u guys wan them to get a monster tat can go beyond 260km/h. there's a purpose for ppl to take 2b,2a then 2... somethings must do it slowly mah, cannot one shot jump so far... not everyone is tat talented

[Turbo08]

Originally posted by floppy@Nov 28 2005, 12:40 PM

so there's no way of telling how much speed there is once you are over 190km/h since meter stops there and then. so it could be 200, 210, 220 or even 240 km/h

pacers, unfortunately, are also not known to be extremely accurate.

agree !! anyway pacers should hav around +/- 10km/h, shouldn't be too exaggerating bah

[anodise57]

given choice again.. i'll still ride an S4.. anytime man!

[hilfiger]

Originally posted by quizesilver@Nov 27 2005, 04:24 PM

that i heard.

according to someone i noe.

i does improve the overall. further more his is using stock exhaust.

i guess once it is remove the speed will be alot differ.

his setup.

 

spec 3

stock header minus the restrictor

stock end can

remove powercut

does jetting

knn airfilter

 

according to him being pace, the speedo is 220

 

so i guess it does improve. further more if u really remove it + micron/yoshi. i can't imagine. how loud and the power it will have.

then i see the welding too. oki lar. but u must ensure SK do it properly. once done look like normal pipe too but if u knock on it. it sound hollow.

Wonder if apply the SK method, pipe will be louder right? Will exceed LTA limit? Inspection will have problems?

[Guest quizesilver]

anyway.

i dunnoe is trust or not. but i see no reason for him to dua kang to me.

the person now like wat u all say wan more speed go for bigger cc. he change to R605.

 

yup i guess it will be louder. that why he use the stock end can.

 

anyway i also mention tat he remove powercut / destricted the rev/speed.

 

so as mention by turbo, the pacer and the rider confirm will have abt +/-10km/h so give the bike abt 210km/h lor.

 

i no $ to try. if anyone have done it would be great if you could share with us.

[VteCFreaK]

went to SK just now and he recommend me the stainless steel header part also... he said it will improve a bit of performance as the interior is hollow. He got show me an original header part sample also.... ya I can see the difference. BTW, some of us got it wrong.. its not the exhaust that we mod... its the header at the connection to the exhaust part. that part change to stainless steel. He quote me $200 plus to change. Mine got dented at that part.. dunnoe wanna weld it back or change to the stainless steel. Seems that noone try the stainless steel before... so its not proven...

[Turbo08]

Originally posted by VteCfreaKVI@Nov 28 2005, 04:41 PM

went to SK just now and he recommend me the stainless steel header part also... he said it will improve a bit of performance as the interior is hollow. He got show me an original header part sample also.... ya I can see the difference. BTW, some of us got it wrong.. its not the exhaust that we mod... its the header at the connection to the exhaust part. that part change to stainless steel. He quote me $200 plus to change. Mine got dented at that part.. dunnoe wanna weld it back or change to the stainless steel. Seems that noone try the stainless steel before... so its not proven...

no worry lah, after ppl read ur post will surely give it a try... just hav to wait for results

[fat di]

me too...

[PaLmEr]

Originally posted by Turbo08@Nov 28 2005, 12:46 PM

u said power cut le rite ?? ask him remove lah then will noe his real speed.

 

cl2 bike ?? u riding one rite ?? how many times u actually rode using the bike's power more than 50% ?? wat im trying to say is giving a rider in sg condition a cl 2 bike is quite under utilised even u go malaysia often, how often do u go ??

 

the expenses on a cl2 bike is almost doubled of a 2a. unless a hardcore tourer or racer in track if not really bo hua to keep a cl2 bike unless u v rich

 

im sure u noe palmer, u c he can go long distance maintaining 190km/h for so long & his bike never "chui" if the rider comfortable wif tis speed, then ok already mah. some can handle while some

 

anyway i noe ppl always say wan faster speed change bike bike lah... but ppl haven try handle 200km/h, u guys wan them to get a monster tat can go beyond 260km/h. there's a purpose for ppl to take 2b,2a then 2... somethings must do it slowly mah, cannot one shot jump so far... not everyone is tat talented

why does my name always appear in threads like this?

[Guest quizesilver]

cos u too fast liao...

[stsoh]

Originally posted by VteCfreaKVI@Nov 28 2005, 04:41 PM

went to SK just now and he recommend me the stainless steel header part also... he said it will improve a bit of performance as the interior is hollow. He got show me an original header part sample also.... ya I can see the difference........

all oem exhaust header design with inner sleeves welded inside, so normally u can see tat the ID (inner diameter) to be smaller as compare to after market stainless steel header....without the inner sleeve.

no sure why oem header r always with this design......n whether the ss header will gain extra hp cos normally bike owner will the tweak carb too.

fyi

[PaLmEr]

Originally posted by quizesilver@Nov 29 2005, 11:41 AM

cos u too fast liao...

nah, turbo's bike faster than mine

[Turbo08]