^^When are you going to have dynos out for the G37 setup?

 

↑ +1

 

We just need a G37 to come down to our location. We're located in Irvine CA.

You pay for the HFC's and $120 for labor, we'll give you a free before and after dyno.

 

Do you have any plans for developing matching SS header for your HFC? Can you offer any group buys for G37 forum members? I'm very interested in your HFC. BTW, will it pass CA smog and CARB approved?

 

How is the sound compared to say getting an exahust (cat back) (louder/ deeper) I have heard a sound clip that sounded pretty good but that was from outside. I am more concerned with how it sounds inside the car. Is there a noticeable difference driving the car under load?

Thanks

 

what has your experience been with the TP's and the cel? what percent has been throwing them?

 

Do you need one HFC for our car or two? Please don't flame me if this is a stupid question, but since we have two intakes..I wasn't sure.

Also...what is the benefit of adding the BERK Test pipes? I am thinking about adding the HFC's, and instead of an intake doing the test pipes. If I plan on keeping the stock exhaust tips, what will the test pipes do for me? Please advise, I want to be more educated in this realm.

Cheers!

 

With the windows up, no discernible difference in sound. I just got back from two 400+ mile trips and unless I driving with the windows down, you can't even tell anythings different with the car.

 

Awesome thanks...
I like hearing the exhaust with the windows down but with the windows up, I really don't want to hear it much. How about WOT from inside?

 

↑ Same thing. Sounds like stock, maybe a tiny bit louder.

 

Ill take care of ya... Heres some of your answers...

You need two high flow Cats... You can either go with HFCs or Test pipes ...They are the same part for the same areas... but a test pipe isnt a Cat.

Test pipes will be louder for sure... but with the stock exhaust you should be able to tolerate it...

 

We also have test pipes for the G37. They are straight through pipes w/ zero restriction. However, keep in mind that these HR motors WILL throw a CEL light on test pipes. Any other manufacturer that tells you otherwise is flat out lying to you. Test pipes are not emissions legal anywhere, it is a federal law, not a state law. They are for offroad use only.

With our HFC's, they DO NOT throw a CEL.

As far as the GB goes, we will not be including the test pipes as part of the GB.

 

Here are two 2007 350Z's.

One has test pipes w/ a Tanabe exhaust, the other has HFC's with a Nismo exhaust.

Test pipes w/ Tanabe exhaust
http://youtube.com/watch?v=W7Z5VZlXsMc

Berk HFC's with Nismo exhaust
http://youtube.com/watch?v=Ra_wms_-Lts

Not quite an apples to apples comparison, but you get the picture. Hope that helps.

 

so interested in these..will probably be picking these up as my next mod

 

well guess i am out on the gb. i only want tp's