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New ls1 owner need help with mods

This is a discussion on New ls1 owner need help with mods within the General Help forums, part of the LSx Technical Help Section category; Hello all I recently picked up a bone stock 1999 Trans Am (auto) and am looking to start with some ...

  1. #1
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    Red
    1998 Trans Am WS6

    New ls1 owner need help with mods

    Hello all I recently picked up a bone stock 1999 Trans Am (auto) and am looking to start with some minor mods. I ordered my SLP air lid and K&N air filter, in the mean time what are the free mods that can be done. I keep hearing there are several things that can be done for free but not sure what they are. I ahve been a mustang guy for years and this is my first LS1 so bare with me! thanks for the help guys/gals

  2. #2
    Life in the Fast lane sunsetorangess's Avatar
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    Met. Sunset Orange
    01 SS

    Cancel the order for the K&N and go with a paper type filter, works the same and without the oil and garbage.
    I would first start with a complete tune up.
    All fluids and filters, oil and filter, fuel filter, air filter, Transmission fluid and filter, rear end fluid. Flush the Radiator etc etc..
    J
    2001 SS, Its not the car its the Driver that matters....

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    1998 Trans Am WS6

    changed the oil yesterday Mobile 1 5w30 and filter, going to do the trans fluid and filter this weekend, and flush the radiator. Is going with a 160 T-stat worth it in these cars or should I leave the stock one?

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    Veteran Hi-Po's Avatar
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    1999 TA WS.6

    Quote Originally Posted by brian r View Post
    changed the oil yesterday Mobile 1 5w30 and filter, going to do the trans fluid and filter this weekend, and flush the radiator. Is going with a 160 T-stat worth it in these cars or should I leave the stock one?
    Some will say the 160 is worth it. Im on either side of that fence. You have to change your fan setting to turn on a 160. So, putting a 160 stat is doing nothing with out someone changing the fan settings. Just so you know.

    And yes, leave your MAF alone.

  6. #6
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    free performance mods = TB coolant bypass. EGR tube cut down. TB bump stop mod

    low-mid dollar mods for a daily driver: LS6 intake manifold, ported and polished throttle body (http://www.s2performance.net/F-Body.html, EGR delete, AIR delete, Mail order tune (http://tunedbyfrost.com/), Cat-back exhaust,

  7. #7
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    Quote Originally Posted by Frost View Post
    resist the temptation to screw with the MAF...

    Nothing like setting the record straight right from the start

    Leave... the MAF... alone!

  8. #8
    cutting and welding mark21742's Avatar
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    hugger orange
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    I know you said free mods, but since your an auto, start looking for and saving for a 3,200-3,600 stall, and headers. those two mods will make you very happy and have you close to being ready for your future head cam swap that we all know you will want in a year or two

  9. #9
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    99 Z28

    Quote Originally Posted by pajeff02 View Post
    Nothing like setting the record straight right from the start

    Leave... the MAF... alone!
    + 1 mine run like shit untill after a tune, after I gutted and ported it .

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