STILLEN HFC Installed Video

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suby01
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my 07 g35x with stillen intake and stillen high flow cats video of some revs and drive byes. enjoy.



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snwbrdr435
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sounds good suby, i bet it sounds 10times better in real life tho.

joe603
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Sounds great! You don't have a Stillen CAT-back??

TeflonG35
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Sexy sex.

suby01
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joe603 wrote:Sounds great! You don't have a Stillen CAT-back??
nope completely stock exhaust setup all i did was switch out the two cat converters.

tollboothwilley
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Sounds great. Did you notice a big difference with the Cats?

I've heard good things about swapping them out.

suby01
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actually i didnt notice any gains myself. unlike with the intake i felt the rmps reach redline a bit higher at highway speeds. but for the HFC i only notice the awesome sound. i do know that others got a dyno right after they installed it and just the cats gave out 8 whp. so i should of got just about that.

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RED_DET
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Hard to tell from the video, any obnoxious drone coming from the exhaust inside the cabin?

suby01
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nope at all.

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G_whizz
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Yup sounds mean!!

Exhaust next??

suby01
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G_whizz wrote:Yup sounds mean!!

Exhaust next??
you keep doing this to me. and everytime i say noo. but in the long run i end up doing it anyway.

TeflonG35
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They compliment each other.

Triton3.5
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hey Suby,, I think it sounds real good,, like you i kinda like my stock exhaust sound,, but have been contemplating test pipes, OR HFC's also thanks for showing what ya did!!

tollboothwilley
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I love the sound of the HFC's

The COBB tuner is supposed to work really well if you have change these out, just so you know

TeflonG35
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Cobb tuning is still neglecting the 03 sedan

tollboothwilley
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have you talked to COBB??

I haven't talked to them in a few months now with work that I'm doing.

I know that the 03 was a different ECU and the code was much different. They were having to redo a lot of work for it but said it would only be another couple of weeks back in April/May.

TeflonG35
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I sent them an e-mail back then. And they said something along those lines. I also just checked their site and it still has the disclaimer for early model sedans.
cobbtuningsite wrote:Infiniti G35 2003-06 ; **Excluding 2003-early 2004 G35 Sedans

suby01
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no prob

RShih
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With the HFC installed, does it pass inspection? Can you still use the stock O2 sensor without the ecu throwing a code?

suby01
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will pass inspection and no code had it for 2 months and i jsut got a check engine. i dont know if its the o2. catalyst threshold below efficency.

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Gdubya35
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Sounds tight. Have to keep that in mind when the time comes for mines.

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4drmadness
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hey man, im looking for stillen HFC'S my self for a 04 sedan. your car sounds great. hows the HFC treating you right now? 02 sensor codes? any other problems with them? deos it pass smog test as well?

suby01
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its sounds awesome i do have a mass flow code now. after like 3 months of driving. im still waiting on a response back from stillen. but def more power and sound is sexy. just ticked out the engin light on the dash.

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4drmadness
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oh ic see, so are you planning to just clear the code or just take the HFC off or just live with the code? let me know.

tollboothwilley
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if it doesn't fix itsself, he'll probably get anti foulers

thats what most people use with test pipes

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4drmadness
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oh i see. those CEL fixes huh

suby01
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ya im deff keeping them. just looking to get some kind of way to change out the sensors.

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4drmadness
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i just got mine installed. i love the sound, and i can feel some gains as well. def a keeper. i didnt get the cel light, so hopefully it never comes on. ill get some vids up soon

tollboothwilley
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CEL probably wouldn't come on right away unless you installed correctly. I think it was about 3 weeks for Suby when he started getting the light...but it came on and off if IIRC.

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4drmadness
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hey let me know when you change the sensors so i can do it to when my CEL light comes on. until then im gona FLY


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