HFCs compatible with an HKS exhaust?
#1
Joined: Nov 2011
Posts: 51
Likes: 4
From: Metro Detroit
HFCs compatible with an HKS exhaust?
Does anyone have HFCs installed on an HKS exhaust? I'm looking at a used coupe that currently has an HKS with test pipes installed, but I need to throw some cats on there to pass inspection.
Been on the phone all day and it seems like as long as I install some cats, I should be fine for inspection. Can I directly replace the test pipes with high flow cats and be done with it?
If so, does anyone have any input as to which brands are compatible with the HKS unit? From what I've read, the Berks HFC is for sure, but unless I'm mistaken, it makes it much louder, which I'm not exactly looking for right now. If that's my only option though, I'd be willing to do it.
Thanks a lot.
Been on the phone all day and it seems like as long as I install some cats, I should be fine for inspection. Can I directly replace the test pipes with high flow cats and be done with it?
If so, does anyone have any input as to which brands are compatible with the HKS unit? From what I've read, the Berks HFC is for sure, but unless I'm mistaken, it makes it much louder, which I'm not exactly looking for right now. If that's my only option though, I'd be willing to do it.
Thanks a lot.
#4
Joined: Nov 2011
Posts: 51
Likes: 4
From: Metro Detroit
#5
I have the HKS exhaust on my coupe. I used to have Crawford HFC's but I put the stock ones back on. Having HFC's will make your exhaust louder but not as loud if you are running test pipes. The Crawfod HFC's look similar to stock. And changing out your cats is definitely not a jack stand job. You'll need to put the car on a lift. Just hollah if you got anymore questions.
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Th611 (03-03-2012)
#6
Joined: Nov 2011
Posts: 51
Likes: 4
From: Metro Detroit
I have the HKS exhaust on my coupe. I used to have Crawford HFC's but I put the stock ones back on. Having HFC's will make your exhaust louder but not as loud if you are running test pipes. The Crawfod HFC's look similar to stock. And changing out your cats is definitely not a jack stand job. You'll need to put the car on a lift. Just hollah if you got anymore questions.
Also, I've been watching this video. Looks like he has it on blocks. I've never gone through the process first hand, but I'd assume I could manage with ramps if they're a similar height to those blocks?
#7
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#8
Joined: Nov 2011
Posts: 51
Likes: 4
From: Metro Detroit
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#11
Joined: Nov 2011
Posts: 51
Likes: 4
From: Metro Detroit
Getting the extensions and a helping hand shouldn't be an issue. Do you have a rough estimate of how long it took you to do it? I think I'd rather have it be a PITA and free, than taking it somewhere and having to pay to have it done.
#14
Joined: Nov 2011
Posts: 51
Likes: 4
From: Metro Detroit
So those who are running test pipes just remove the sensors completely? And throw them back on when they install cats for inspection?
#15