I think I bought mine through amazon, free shipping to HI where I was located at that time. Performance peddler (I think that's what it was called) was cheaper shipped in the 48 states. I believe you could make an offer and they sent you an email stating if you got it or the lowest price they would go. I believe it was like $80ish.

 

You should be able to find them locally at muffler shops because they are popular. The part # is 11385. Good luck its an awesome mod.

 

for the HKS replica's you want to use the 11386 due to larger piping. 11385 would be to small

 

if you already ordered the 11385 an exhaust shop can bump it up to make it work though

 

I've been googling and searching on the forum and I am finding mixed information... so question...

I've got a Stillen True dual. When I get the magnaflow 11386 installed, do I replace:
A) the Stillen X-pipe
or
B) the Stillen X-pipe and the 2 stillen resonators?

Thanks a lot for your guidance!

 

it should replace the x-pipe and resonators.