Can you shoot some video on the cracking sound? aim at the rev meter.

4-1 headers, you can opt for Hotbits, Powerzone, Supercircuit or RPW replicas

The rest are all stainless steel except for the Powerzone ones which are double chromed. Not sure on the collector sizes of the Hotbits and PZ, Supercircuit one is 2.5" collector, where else the RPW replica is 2.3" at the collector

How much is that for 2.5"?

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?

woot..
i came back after few weeks of tests for my exhaust. I installed PowerZone Extractor 421, Matola oval mid box (straight flow) and Matola S-flow muffler (big size) while maintains the stock piping. Sound-wise, i cant say more. Really silent, close to stock's sound, and a bit nice bassy sound when revving.

However, the result on my setup was quite a frustration to mine. I cant feel a lot of differences, oni a bit of pick up lower-mid (3.5k) rpm. Currently, it's getting better as my ECU relearned my driving style. Top speed? Weird case, i lost top speed. Cant reach 200kmh anymore.  185 topspeed at ~5.3k rpm. Cant go more. wtf

So, i went to see an old friend, a vtech formen which tried my car. He scared me till my pants off as he said that my driving style doesnt suit the s-flow muffler i bought, as for now the muffler itself has become the flow resistance and there's a chance that it will affect my HEAD, as the backpressure was too high.

Can anyone verify this? Do i really need to change my muffler to straight flow instead? Is there any straight muffler which can provide low frequency bassy sound instead od praaaangggggggg sound?

Thanks Sifus.     

How big is your Matola S-flow? 2" inlet?

For straight flow, to avoid the pprraanngg sound, avoid types like the 5zigen Border 304 muffler

Yes. Currently is 2". Gonna sell soon anyway.     

I see, that was what they call trumpet muffler isn't it? So, which type is recommended? Currently, i'm looking for JASMA approved muffler at half-cut but sadly, 2" seems like do not exist at all. Minimum inlet i can find is 2.3".

owh, btw, is there any good immitate stuff out there which is reliable?

Thanks. 

So, i went to see an old friend, a vtech formen which tried my car. He scared me till my pants off as he said that my driving style doesnt suit the s-flow muffler i bought, as for now the muffler itself has become the flow resistance and there's a chance that it will affect my HEAD, as the backpressure was too high.

Can anyone verify this? Do i really need to change my muffler to straight flow instead? Is there any straight muffler which can provide low frequency bassy sound instead od praaaangggggggg sound?

Thanks Sifus.     

2" got... look for fgk muffler wit jasma tag... hks also got ..tanabe also got... look at mudah... bkful as alot imitation goin around.. ori jasma tag is weld by ribet..

wats a vtech?
n go try out the mugen twin loop

and 2.3" straightflow muffler is fine with 2" pipes... had that setup last time...coz its nearing the end already

I plan to change my LMST muffler. Noisy like.... What size of inlet/outlet is best for my car? The exhaust system 3is stock, I just want to change the muffler. And will S/straight flow have any difference? I'm looking for bassy sound (but not very ahbeng loud) while idling

Hi ,

Planning to change to extractor 4-1 first for myvi 1.3 ( dun know which brand I should go for )
brand like : hotbits , dsport , powerzone , superstreet
I need feedbacks from drivers please

thank you

My extractor cracked..and already weld it.but power kureng la..damn..

Change extractor, kaw tim