Performance for Satria Neo 1.6 AUTO

[uncontrolled]

Hi all Sifu,

I just get Proton Satria Neo 1.6AT H-line from my dad...
Finish installed R3 bodykit..now the car is at workshop for painting job..

I found that my satria pick up is not that strong (perhaps every satria owner problem)
planning to install 4-2-1..but a bit confuse here..
It just change the 'head' or the whole exhaust system including muffler?! will it sound 'noisy'?!
if change the whole system..any recommended brand?!

Besides,i also plan to install K&N drop in filter and pulley..
any other recommend stuff?!

Thats all i wanna mod to increase my pick up...will it help much?!
**just wanna have a small mod and i have no knowledge in car mod**
**shoot me if I said anything silly**

Thanks.

 

[kun1006]

better u change manual...bcoz im also mt...smooth pickup==

 

[rex79gt]

change 421 header is good
exhaust system needs to b suitable like using s flow muffler since it's auto
add 2 bullet will make yr car from being noisy
drop in k&N filter also good