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Old 10-18-2010, 04:32 PM   #1
sub zero

 
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Cool Any body have FAST INTAKE manifold in L99

hi everyone..

i have on my L99 (CAI , CATBACK , UNDERDRIVE PULLY)
but i'm thinking aboute incresing my power...
so , i think now about FAST INTAKE monifold...

so, any body have this on his L99 , i want to know about the power or how hp gain from it , i know it's give the engine more cold air , but i'm intrested about the power , my friend have it on LS3 and he feeling good with it , but i don't know if it's work with my L99 same as LS3.
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Old 10-18-2010, 04:57 PM   #2
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It will have decent gains over the factory intake. Not anything crazy but it will pick up some over the GM intake. We have engine dyno tested them on the LS3 and they seem to be on par with a ported stock intake on those motors. I would expect the same from the L99 as well. I would say you would be looking 10 HP increase or so best case on an otherwise stock/bolt-on car.

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Old 10-18-2010, 11:13 PM   #3
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So basically you're paying $100/HP, and that's best case scenario. Not the first thing i'd do when looking for HP. If you were going FI or big radical cam, it might be worthwhile. That $1k would be better spent on something else, like headers.
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Old 10-19-2010, 06:50 AM   #4
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Unless you are changing the cam on the L99 you will pick up next to nothing. ADM put one on a bolt-on L99 and I think it picked up 3rwhp. The stock intake is more than enough for the tiny little bumpstick the L99 has. Add a nice aggresive cam and the FAST will shine. The LS3 does gain a bit and is a decent mod w/ the stock cam.
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Old 08-30-2017, 02:17 PM   #5
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Post Intake manifold for l99

Hey guys I know I'm probably just a little late but I wanted to know if it would be worth it on my end on getting the LsX intake manifold? I have CAÍ, longtube headers, and stage 1 tsp cam. You're guys help would really be appreciated!
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Old 08-30-2017, 03:07 PM   #6
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Just get your intake ported and a rod mod. Half the cost and will perform better
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