lol. same here..forkin alot MOD car... my tradin also okok..

d pic from facebook. from duno wat workshop..think xxss somethin like dat..

d calculation had to ask upondsky...anyway, nowadays people use software...

Hows their price and workmanship  ?

the other way round dood

4-2-1 benefits more on the lower to mid range of the rpm

4-1 benefits more on the top end/ higher end of the rev range

wah, 3 midbox including the muffler will be 4 boxes....    

Actually what is the function of midbox?

What engine?   
4G63T normally only can that speed~

Is it really useful to put so many midbox? Sampai 3 midbox ???

i wonder how he go through bumper.. 

lol...taiko 3 bijik...act can just replace d mid part wit larger diameter pipe size...lol... again, havin too large place will induce drone effects though...lol.

Bro., your friend do 265kmh on this type of tyres??

Not any major thread pattern that I know off, but the way of thread design is of entry level. Even if higher is only V rated for 240kmh. Performance tyres with W only 270kmh therefore also at limit already. If I were him sure to fit Y rated 300kmh tyres....even now my car limited to 190kmh, I am using Y rated......

hmmm...
put 8 how? haha trololol
ok la so put 2 top speed nice?
sound also quite a bit right?

Would really love a balance to have good pick-up and power till 140km/h but i normally just cruise at 110 though only. you're rolling on cps bro?

BTW, if those blocked muffler is really that good, come to think of it why dont other manufacturer create them? I believe it's all hype. 

My 1.5 carb manual is around RM56=250km with half light half heavy foot.
Current Setup: length tuned 4-2-1, 1.6" piping, 2" tornadore designed inside bullet, 2" inlet muffler, K&N drop in filters, aerospeed spark plug, NGK g power platinum spark plugs and 15" Taiwan rims with 195/50R15 tyres.
I really wish to get fuel injection now but scare can't get decrease in fuel consumption and also drease in power. Scare a lot of problems also.

So far I dont know any sport muffler which is as quite as a stock muffler.

Definitely not everco. Something heng. No extractor, just flexible pipe, piping all the way to the back then muffler.
Yup. They tune itself accordingly. Thats why they have o2 sensor and smart ecu ensuring optimum burning. Some even shut off the injector and run only 2 cylinders during cruising or idle. Same goes to startstop tech.