Got this cat-back to replace our Crawford Gymkhana exhaust which was was ridiculously loud. I would love to see this exhaust offered with a resonator-less center pipe, as it is definitely on the quiet side in terms of aftermarket exhausts, but HKS is legendary and I've never been disappointed from their exhaust products. Well engineered, well made, good instructions, and priced great.
We mated this to our 3"HKS downpipe, so no adapaters needed.
If you want all new hardware, you will need an additional two bolts and nuts, as it only comes with two of each.
Love it, just was hoping it was a touch more aggressive.
Import Image shipped insanely fast and answered my email within an hour. Love this place!