Fast intention exhaust owners chime in

BC416

1) I have the 18" CBE paired up with stock cats. There is maybe a small amount of drone, if you can even call it that, in 6th around 60MPH. It goes away the closer you approach 70MPH and is gone by the time you get there. I'd rate it like a 2.5 on your scale.

2) If you don't plan on lowering, you will be fine. I've only had the exhaust on for abouut 3 weeks now, but I've yet to hit it on anything and the roads here in NJ are pretty terrible.

Also, I've seen mention of rattle on the interior - I'm guessing this is install error or something cause mine is rock solid. No rattling or shaking the interior at all, not on cold start or anything.

I've said this before, but I drove an SRT-4 with a catless turbo back exhaust for like 6 years - the last thing I wanted with the Z was loud *** exhaust that drones terribly - and I couldn't be happier with the F.I. purchase. You will not regret it.

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F.I. / K&N / 180 / Forgestar

GOBLUE

Thanks for the response BC, that is very helpful! I've watched some of the videos of the FI CBE and it sounds amazing. I was just concerned about the level of drone because it is a daily driver, during the summer anyways. I wonder if any other Roadster owners have installed FI CBE... because I know the cabin resonance is different between coupe and roadster. I've driven both and the roadster is actually quieter inside than the coupe due to the interior shape and cloth top. It doesn't have as much booming as the coupe in stock form.

Just out of curiosity, the slight drone you mentioned around 60 mph, it is better or worse with your windows down? Does it disappear with windows down due to wind and road noise? Thanks!

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2010 370Z Roadster, Touring 6MT, Pearl White on Black, FI CBE

BC416

Honestly - I haven't really payed attention to the difference with windows down/up. I really don't spend much time in 6th at that speed anyway - I'm either downshifting into 5th if I'm slowing up or accelerating to around 70-75 to cruise.

I'll play with the window up/down thing when I'm on my way home from work tonight and report back on how it sounds.

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F.I. / K&N / 180 / Forgestar

BC416

So I did a little cruising yesterday at 60 in 6th - windows up and windows down and it was pretty much the same with both. It seemed the exhaust got a little louder with the windows down, but that was cancelled out by the wind/road noise.

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F.I. / K&N / 180 / Forgestar

GOBLUE

Cool, thanks for checking.

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2010 370Z Roadster, Touring 6MT, Pearl White on Black, FI CBE