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LS6 intake vs f.a.s.t.

This is a discussion on LS6 intake vs f.a.s.t. within the External Engine forums, part of the LSx Technical Help Section category; 99SS m6 getting headers come spring. ? which intake ls6 or the f.a.s.t car now has lsp lid and loudmouth ...

  1. #1
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    LS6 intake vs f.a.s.t.

    99SS m6 getting headers come spring. ? which intake ls6 or the f.a.s.t
    car now has lsp lid and loudmouth (headers soon)will not do a hole lot else to the car.

  2. #2
    Senior Member Hurley711's Avatar
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    414 RWHP 395 RWTQ
    00 Black Ram Air Trans Am

    Stick with the LS6 then, no need for the FAST if you aren't modding much further. Save some $$$ up and throw a cam on there while your changing the manifold though, you will see bigger gains over just a manifold.

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    Senior Member NeeD4SpeeD's Avatar
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    Quote Originally Posted by Hurley711
    Stick with the LS6 then, no need for the FAST if you aren't modding much further. Save some $$$ up and throw a cam on there while your changing the manifold though, you will see bigger gains over just a manifold.
    Unless you have high HP (big cam, heads, FI) then the fast intake is overkill and for the money spent it wont give you the power your looking for espically over the LS6 you might only see 6hp over the LS6 because the FAST is so big and high flowing in CFM that there's not enough energy (Horsepower) to push the air through all thoes 90MM so IMO not worth the $$$$

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    Slow'er'Ass Mr. Luos's Avatar
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    2008 Trailblazer SS

    LS6 for you.

    Basicly the FAST intake outflows the stock heads intake side. Making it barely worth anything over the LS6 intake.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

    1999 Pontiac Trans Am WS.6 #1747 SOLD
    531.1 RWHP 481.3 FT/Pounds all motor.

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