But auto car muz use 1 bullet,1midbox,rite?wat happened if onli use 1 midbox?

So my car is auto.use bullet n midbox.rear is s flow muffler.i plan to change d rear muffler to stock muffler.so tat means i can remove d bullet without affect performance,rite?

If din remove,tat means wil cause d gas flow not smooth?

if i change bec stock muffler instead s flow muffler,will affect a lot in performance?

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Added on March 7, 2012, 10:04 pm

nw i oledi change to another s flow muffler..brand is marco..nw my rear muffler sound much quiet than previous..but i still can feel the bassy sound in the cabin(onli at front seat)..when i sat in rear seat,there is no noise when cruising 110kmh..but if sat in front,then can hear it..previous muffler more louder,current marco one oledi reduce around 70% noise..the exhaust shop told me,since i use straight bullet,so the sound can go in to the cabin..the bullet is at bottom of front seat,so will cause onli got sound when sat in front seat..is it true?he asked me to change my straight bullet to the bullet which got one pieces metal in the middle of inside of bullet..he mentioend it can reduce the noise and increase pick up especially auto car..

The brands you quoted are more towards Japanese cars and I'm not sure if they have a specific model for each car (very likely not?). However for continental cars, they always have a proper specific model for the car so obviously it's not a universal product like what Japanese brands normally do. In the case of continental cars, the companies that makes these performance exhausts are also the ones designing exhausts for BMW, Mercedes, Audi, VW, Porsche, etc. In terms of quality, they are also the top 5 in the world.

To be honest, Japanese and continental cars are 2 different leagues If you consider TRD upgrade like those (for Vios, Camry) as a proper performance upgrade then I really scratch my head and have nothing else to say. You should see what "performance" upgrade really means by looking at what continental car tuners/manufacturers have to offer. Anyway, it's just how every individual perceive things and since I've owned a local, Japanese and Continental car myself (not adding other family cars which I have), I'm very clear of the differences. If we go back to the exhaust part, it's also undeniable that proper designed exhaust makes a different. The most important aspect is not only about the performance but the quality (Titanium, high grade stainless steel vs China crap stainless steel by local exhaust shops). When it's new you can't see or tell but along the way, it's very apparent.

If crap shops like Wai Heng exhaust is so good, they seriously should expand to the global market and multiply their profits substantially. The fact that they don't is because they cant - all they offer is a screw up exhaust replacement system which makes you lose torque and bhp without you knowing most of the time. I've tried it 3 times and I think it's enough.

looking for a stock rear muffler with 2.5" inlet...

the quieter the better... preferably a stock exhaust from some car... any idea wat car uses a muffler with that size inlet?

Just knew LMST no cat con 

All of the above is POINTLESS if you watch Mighty Car Mods. They have sent their cars to dyno test and check with all the filters. NO DIFFERENCE compared to Original. lol

Well, assuming if they did get some gains, I am sure it would be unnoticeable gains. Doubt you would be able to feel 1-2% increase at all.
Well, I'm sure you will get noticeable noise. hahaha..