Just like the title says, installed XO2 exhaust with Kinetic HFC and it's a bit too loud for my taste. (drones too much at highway speed with windows up)
I'm thinking about installing a pair of resonators, but some says that it won't do any good and recommends putting stock cats back on(which I don't wanna do)

Any insights on this subject? Thanks in advance

 

lol put the stock cats back on

 

Go test pipes with headers! BE A MAN!

 

Vvvvoooogggggg, I Like It Loud!

 

loud is good, but drone on the highway would drive me insane

 

I drove my 73 Mustang with a dual exhaust and glass packs for 8 years through HS and college. I am used to drone on the highway.

 

shoulda gotten the real thing, 35k car deserves to be treated right.

I have an HKS with high flow cats, no drone - not loud unless i punch it.

 

I'm looking to get an HKS exhaust right now, do you think HFCs are a necessity with the exhaust? How big of a difference is it? I have only heard an HKS in person without HFCs so I have no reference to compare to.

 

i havent heard it without it - i got the exhaust after i had the cat's

 

hey patrick if you thinking about getting the HKS wait until we get a mini meet going in sac i show you my HKS is loud but doens't drone on the highway..

 

Richard, do you have HFCs or test pipes on yours, or are you just running the exhaust with stock cats?

 

just the HKS exhaust with stock cats..

 

it look really good with the nismo rear diffuser also

 

that looks sick, I almost picked up the diffuser locally from a forum member, but someone bought it before I had a chance.

I'm gonna pull the trigger on the HKS exhaust tonight though

 

hmm.... i wonder who? you should check out phill greddy EVO2 exhaust look like 2 big plasma gun from the rear it look sick