Ok thanks guys. I will remove the power duct and buy an Hfc system. So total estimate? Around 350-4?

 

It depends on which company you go with and don't forget to factor in labor unless you do the install yourself. There's also motordyne art pipes which make good gains for our cars. If I were you I would do more research to avoid making a costly mistake.

 

see if you can find a use set of high flow cats in the marketplace here on the forum

 

Have you decided on which one?

 

Whic hfc's? No I have no idea which which to go with

 

What brand?

 

I'm just going to get a hfc and remove the power duct

 

Forget HFC's and get Motordyne ART pipes.

 

^+1. Remember though, he only has 3-400 to play with + installation.

 

How much does installation run around? And I can Remove the power duct myself right?

 

Dam homie, you're beating a dead horse with this power duct.

Walk out to your car, pop the hood, look at your airbox, you'll see the power duct, it's even labeled.. It literally requires popping out two pins and you're done. Removing/installing it isn't a big deal.

Linking you to threads means the info is out there. Dig a little deeper when searching and you will learn a lot more than asking questions that can be answered with a yes or no. Since it seems like you know nothing about replacing your stock cats, READ up on other people's experiences. This will help you decide which brand you want, if you can afford it, or if you even want to replace your stock cats at all. Tons of things to consider..rigidity of HFC internals, rasp/noise from hfc/test pipes, emissions in your state.....added smell...etc.. Check out the exhaust threads, there's a plethora of info.

As for installation, call your local shops and get a quote to see how much they will charge you to replace your cats. Or, scope out the DIY threads if you wanna save some cash.

 

06RedG35

buy this:

https://g35driver.com/forums/nationa...tem-cheap.html

^link^

its a $1,500 exhaust for $300 + shipping... jump on it...

here is what the exhaust sounds like...

 

Art is pretty good from what i hear.

 

Should I buy these or high flow cats?

 

I just removed my power duct and notice a slight difference