Muffler fibre effect

[Eemin]

hi ppl..

 

just back from vicom inspection today.

 

sianz.. the rear tint din pass.. fail.. though the JB fella showed me was 25%. shucks.. now need to go back and redo at shop.

 

thing is.. hands itchy la.. was contemplating about the 'cut' in muffler to remove the wool/fibre for better flow. would this fail STA/VICOM inspection too? i mean, emission should pass as cat is still doing its work. only noise level is affected right?

 

anyone can pass on good advice? is the reduction in backpressure translated into noticeable hp boost?

 

pls advise. thanks.

[Jhoo]

Hi

 

I have done a search on exhaust, quite good info in this forum. Many postings will tell you that the exhaust mod will have minimal or worse, negetive yield on performance.

 

As I'm havin a NA Auto ride, my aftermarket muffler doesn't really enhance much performance and at the expense of my low end. You can always improve the exhaust header but thats too much trouble for me. Of course, I'm still happy with the asthetic and sound.

 

Before doing the muffler, you may consider enhancing your intake, filter and CAI. After which your car should breath better thus better response.

 

Cheers and happy modding!