No such thing as HKS 70mm dual.....

 

That was in reference to the test pipe, not the exhaust.

 

I had both 70mm and 60mm test pipe on my HKS Hi-Power Dual. The 60mm just sound a tad bit "crisper" and better.

 

it's nice to hear the opinion of someone who has tried both, thanks :-)

 

my first exhaust was the dual hks with a 60mm test pipe. best dam sounding exhaust ive ever had. mannn, the sounds it make's n/a when the vtec cracks is insane and no video online will ever do it justice....... then i was running the hks 75mm single with a 70mm test pipe n/a. still sounds really good and INSANE loud but no where near as clean as the hks dual with the 60mm test pipe but it did make more power.... now im turbo'ed and still running the hks 75mm single with 70mm testpipe and it has got a lot quieter with all the manifold/turbo supressing the sounds n all. still sounds good but i wanted to bring back the loudness so i went n got a electronic 75mm exhaust cut out and welded a Y off section on the test pipe. now it sounds FAWKINNNNNN SICK. tooo nasty hahaha. n da best part is i can open or close it anytime i want. super loud or clean loud at a flip of a switch.