A preview of what it sounds to those of you who havent heard it i had the m2 exhaust and it sounded horrible so i went back to stock....

 

i like it, still maintains a lot of the stock note. But im not too sure about the quality of Berk cats, too many have failed recently

 

Sounds good. What has failed on them?

 

the welds

EDIT: my mistake, I was thinking of the Invidia Cats that have been failing, not the Berk

https://g35driver.com/forums/v36-eng...luck-cats.html

 

I really want HFC w/ stock exhaust, I love the G stock exhaust, I just want everyone else to be able to hear it

 

Did you notice any type of HP difference?

How would you describe the sound difference (in words) vs stock?

Did the cat bolt right on to the stock exhaust or were any special/custom modifications required?

 

Cats are direct bolt up. No mod needed. I have some for sale if interested. Almost brand new too..

 

I don't know..... Didn't sound "horrible" to me? Louder yes! But that's the intent of the HFC' amoung other things.

 

He was talking about when he had it paired with the hks knockoff. Sounds good now..

 

Ahhhhhh..... Next time I'll have my coffee before posting this early. My bad lol

 

Haha

 

OMG redpearl, this...^...isn't good! You haven't been here long enough to start unfounded rumors...
Gary

 

i like the high flow cats they do give you some gains i felt the difference once installed have them for about almost 6 months no problems. just wondering a the perfect exhaust to mate it with....knocksoffs dont go well...

 

Bahaha, give me a break Gary......I fixed the mix up in less than 5 mins

 

i have the same setup. theres definately some rasp at higher rpm's but the stock exhaust note is just ampllified otherwise. overall it sounds great!