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Koni Shocks - STR.T vs. Sport 4/3

This is a discussion on Koni Shocks - STR.T vs. Sport 4/3 within the Suspension and Handling forums, part of the General Help category; I'm looking to lower my '99 T/A and would love your input on the differences between these two shocks. I ...

  1. #1
    Senior Member GottaHaveLS1's Avatar
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    1999 Trans Am M6

    Koni Shocks - STR.T vs. Sport 4/3

    I'm looking to lower my '99 T/A and would love your input on the differences between these two shocks. I want to get the Strano lowering springs and sway bars but I am debating if the Sport 4/3 single adjustable shocks are worth the additional money.

    Some additional context about my car: I have a bolt on car (mods in sig) and and my intention is for it to always be a street car - I don't plan on making it a race car (drag or autoX, etc.). My goal for modifying the suspension is to improve handling and lower the car ~1.5 inches (I realize the drop is hard to predict and varies). I want to avoid getting a setup that is too sensitive to bumps in the road and I don't want to sacrifice too much clearance.

    I see on the forums that the Strano/Koni combo is very popular but I'm not certain if this is specifically referring to the Sport 4/3 shocks. Please let me know your thoughts and what setup you recommend. I am willing to spend the additional money if it will make all the difference for a street car.
    1999 Trans Am M6
    SLP Short Throw, Lid and CAI, Strano Springs, Koni Sport Shocks, BMR STB and SFC, UMI PHB, Pacesetter LT's and ORY, Magnaflow Catback, DMH 3" E-Cutout, LS7 Clutch, Motive 4.10, 160 T-Stat, MSD wires,, 17x9.5 Chrome C6's wrapped in Hankook 275/40/17

    Tuned at Mongillo Motors in New Haven, CT - 303 RWHP and 308 RWTQ

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    Super Moderator pajeff02's Avatar
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    Unless you are tracking your car, you will likely dial in a setting and then never change it.

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    Senior Member GottaHaveLS1's Avatar
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    Quote Originally Posted by pajeff02 View Post
    Unless you are tracking your car, you will likely dial in a setting and then never change it.
    great thank you. One more question: Iíve read that I need LCAs and a Torque arm to adjust the pinion angle after lowering the car. Is that correct?

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    Super Moderator pajeff02's Avatar
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    '02 WS.6 / '07 Suburban

    Yes, that is the best way to do it. The stock components bolt into place with zero adjustment ability.

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