to all sifus here, need help and guidance, i'm on tight budget here, so i thought about two options myself on modifying the exausht pipe. my car is an iswara UK spec 1.5cc 4G15P with injection.

1) should i buy a zenden extractor and pair it up with my existing mid bullet and the rest of the piping remain standard?

2) or should i buy a second hand WISE edition whole piping from extractor to muffler, cut and weld back?

thanks for all the infos shared in advance.