I've got a HKS/MOTIV setup now(click my sig for more details)
Here's an old setup:
HKS EL Headers > MOTIV overpipe > HKS Catless Front Pipe > HKS Spec-L
Video(warm revving):
https://www.facebook.com/photo.php?v=10200820126397989
Vdeo(driving):
https://www.facebook.com/photo.php?v=10200791906052498
Warmer weather the exhaust is a bit raspy like a Honduuuuh fart can - not so raspy if you have CBE only, if you have a full exhaust, it WILL be raspy. Can be easily fixed with heat wrap and hose clamps(read my build thread).
Make sure you get the VERSION 2 of the HKS Spec-L. The first one has a manufacturing defect across the resonators and some hairline cracks along the bracket holding the H-Resonators too. Version 2 has tiny trap shaped brackets to secure the pipe/resonator.