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Old 08-22-2014, 06:51 AM
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Default Throttle body/intake bore size identification. help needed

Hi guys

I have a professional products intake installed by the previous owner, and I would like to replace it with the FAST intake. However, I am not quiet sure about the bore sizes of the existing bore sizes. Also, FAST has intakes with different bore sizes and I don't know which I should go with.

Your input and advice will be appreciated guys
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Old 08-22-2014, 05:08 PM
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Originally Posted by 72Z/28 View Post
Hi guys

I have a professional products intake installed by the previous owner, and I would like to replace it with the FAST intake. However, I am not quiet sure about the bore sizes of the existing bore sizes. Also, FAST has intakes with different bore sizes and I don't know which I should go with.

Your input and advice will be appreciated guys
Do you want the Fast for looks or performance gain? If you're doing this to increase performance don't bother, there's very little gain over the stock manifold and what gain there is, is way up in the rpm's. I would opt for an LS6 manifold if I had a choice.
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Old 08-22-2014, 09:03 PM
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Originally Posted by 71RS/SS396 View Post
Do you want the Fast for looks or performance gain? If you're doing this to increase performance don't bother, there's very little gain over the stock manifold and what gain there is, is way up in the rpm's. I would opt for an LS6 manifold if I had a choice.
The FAST intake looks much nicer as the professional products intake looks too blingy as well as the heat soak issues as it gets very hot. I am not sure why the previous owner replaced the LS6 intake with the PB intake.
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72 Camaro RS:SOLD
68 Camaro:
LS6 Engine,Tremec TKO 600,5 Speed
Complete Speedtech Subframe Kit,Speedtech Torque Arm, 9" Rearend from Strange, Wilwood Brakes, Minitubbed, Hotchkis Subframe Connectors, FIKSE FM5s
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Old 08-22-2014, 10:24 PM
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Originally Posted by 72Z/28 View Post
The FAST intake looks much nicer as the professional products intake looks too blingy as well as the heat soak issues as it gets very hot. I am not sure why the previous owner replaced the LS6 intake with the PB intake.
OK it's for looks which is fine if you're good with the price. You don't need the 102 in fact it can be difficult to get the low speed (idle quality) tune right with it.
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