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Stillen vs Fast intentions! Bigger gains?

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Old 01-07-2013, 11:02 AM   #31 (permalink)
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Old 01-07-2013, 11:23 AM   #32 (permalink)
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Originally Posted by ubs234 View Post
Stillen I know they advertise 18whp and Fast Intentions i'm not so sure, but I wanted to know people who had the Fast Intentions who have seen gains on their Z's. Which one is better for gains?
Look at the F.I thread for their dynos stock vs FI. First post in thread.

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Old 01-07-2013, 01:17 PM   #33 (permalink)
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If the exhaust isn't chambered and the piping is the same, the power difference will be within a few hp. Only the bends will slow things down. Regardless, of the two mentioned, Fast Intentions makes the superior product. I would also recommend looking at Motordyne's offering as well. It has a HFC option as well and makes comparable gains. The big difference with Motordyne is their piping gets larger as it gets further away from the engine and they claim it will not rasp with TP's or HFC's.
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Old 01-07-2013, 02:35 PM   #34 (permalink)
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Also consider that the Stillen is one of the few exhausts that are heavier than the stock unit, while just about every other one I've seen is lighter by 5-20 lbs. By itself it doesn't matter too much, but every bit adds up if weight loss is also a concern.

I'd second the suggestion for the Motordyne CBE. Their sound and gains are competitive with Fast intentions, while having added modularity. I'd have gone with them had I had a larger budget.
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Old 01-07-2013, 08:25 PM   #35 (permalink)
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Is fast intentions cbe CARB legal?
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Old 01-07-2013, 08:30 PM   #36 (permalink)
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Originally Posted by ubs234 View Post
Is fast intentions cbe CARB legal?
The CBE alone should be because you're still using Stock cats. When you start getting into LTH, HFC, TP territory, that's when you start going beyond legal limits in Cali.
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