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    • In Stock
      Action Clutch Stage 1 HD Clutch Kit for Subaru WRX 2018 - 2021 with Lightened Flywheel | aonACR - 1816 - 2OS - FW - JDMuscleSPK821407
      Action Clutch

      Stage 1 HD Clutch Kit with Lightened Flywheel

      Fits: 18-21 WRX

      Only 4 left
      $83721
      Pay over time · Est. $26.16/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      Action Clutch [18-21 WRX] Stage 2 Clutch Kit - 2.0L FA20DIT Turbo AWD
      Action Clutch

      Stage 2 Clutch Kit - 2.0L FA20DIT Turbo AWD

      Fits: 18-21 WRX

      Only 3 left
      $67996
      Pay over time · Est. $21.25/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      Action Clutch Stage 3 (1MS) Clutch Kit with Lightened Flywheel for Subaru WRX 2018 - 2021 2.0L Turbo AWD | aonACR - 1818 - FW - JDMuscleSPK821415
      Action Clutch

      Stage 3 (1MS) Clutch Kit with Lightened Flywheel

      Fits: 18-21 WRX 2.0L Turbo AWD

      Only 4 left
      $82871
      Pay over time · Est. $25.90/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      Cobb Tuning [08-14 WRX, 05-09 Legacy GT, 06-08 Forester XT] 5MT Stage 1+ Drivetrain Package - Weighted Knob - White
      COBB Tuning

      5MT Stage 1+ Drivetrain Package - Weighted Knob - White

      Fits: 08-14 WRX, 05-09 Legacy GT, 06-08 Forester XT

      Only 4 left
      $32000
      Pay over time · Est. $10.00/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      Cobb [15 - 26 WRX] Stage 1+ Drivetrain Package - Tall Weighted Shift Knob - JDMuscleShifter and Bushing ComboscobbSUB0DT011P-TW-W
      COBB Tuning

      Stage 1+ Drivetrain Package - Tall Weighted Shift Knob - White

      Fits: 15-26 WRX

      Only 13 left
      $28500
      Pay over time · Est. $8.91/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
    • Up to $12.20 off
      Exedy

      04-21 Subaru WRX STI Flywheel

      $6915$81.35 Save 15%

    • In Stock
      Action Clutch 1988 Honda Civic 1.5L/1.6L (D15/D16) Chromoly Lightweight Flywheel - JDMuscleFlywheelaonAC101FW
      Action Clutch

      Chromoly Lightweight Flywheel

      Fits: 88-05 Honda Civic 1.5L/1.6L D15/D16

      Only 4 left
      $25526
      Pay over time · Est. $7.98/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      Action Clutch 06 - 11 Honda Civic Si 2.0L (K20Z3) Stage 1 Clutch Kit (1OS) - JDMuscleClutchesaonACR-0658
      Action Clutch

      06-11 Honda Civic Si 2.0L (K20Z3) Stage 1 Clutch Kit (1OS)

      Only 8 left
      $34846
      Pay over time · Est. $10.89/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
    • Up to $111.10 off
      Exedy [22+ Honda Civic Si 1.5L] Stage 2 Cerametallic Clutch | 08958 - JDMuscleClutchesexe08958
      Exedy

      Stage 2 Cerametallic Clutch | 08958

      Fits: 22+ Honda Civic Si 1.5L

      $62945$740.55 Save $111.10
      Pay over time · Est. $19.67/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      Action Clutch 12 - 15 Honda Civic Si 2.4L (K24Z7) Stage 1 Clutch Kit (1OS) w/OE - HD Flywheel - JDMuscleClutchesaonACR-0665-OEHD
      Action Clutch

      K24Z7 Stage 1 Clutch Kit (1OS) w/OE-HD Flywheel

      Fits: 12-15 Civic Si 2.4L

      Only 9 left
      $51846
      Pay over time · Est. $16.20/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      Action Clutch [12 - 15 Honda Civic Si 2.4L K24Z7] Stage 3 Clutch Kit (1MS) w/OE - HD Flywheel | ACR - 0667 - OEHD - JDMuscleClutchesaonACR-0667-OEHD
      Action Clutch

      Stage 3 Clutch Kit (1MS) w/OE-HD Flywheel | ACR-0667-OEHD

      Fits: 12-15 Honda Civic Si 2.4L K24Z7

      Only 1 left
      $57796
      Pay over time · Est. $18.06/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
    • Action Clutch 06 - 15 Honda Civic 1.8L (R18) Stage 1 Clutch Kit (1OS) - JDMuscleClutchesaonACR-0672
      Action Clutch

      06-15 Honda Civic 1.8L (R18) Stage 1 Clutch Kit (1OS)

      $34788
      Pay over time · Est. $10.87/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    • In Stock
      IAG [22 - 25 WRX, 04 - 21 STI, 07 - 09 LGT] Street Series 6 Speed Transmission Mount | IAG - DRV - 2101 - JDMuscleTransmission MountsIAG-DRV-2101
      IAG Performance

      IAG Street Series 6 Speed Transmission Mount | IAG-DRV-2101

      Fits: 22-26 WRX, 04-21 STI, 07-09 LGT

      Only 1 left
      $29999
      Pay over time · Est. $9.37/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
    • Up to $194.31 off
      XClutch 23 - 24 Toyota GR Corolla Morizo Edition 1.6L Stage 1 Sprung Organic Clutch Kit - JDMuscleSPKxclXKTY24646-1A
      XCLUTCH

      23-24 Toyota GR Corolla Morizo Edition 1.6L Stage 1 Sprung Organic Clutch Kit

      $1,74882$1,943.13 Save $194.31
      Pay over time · Est. $54.65/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
    • Driveshaft Shop

      DSS Subaru 1992-2003 WRX / 2.5 RS | GC8 / | GD Sedan Level 0 Basic Replacement Front Axle

      $26249
      Pay over time · Est. $8.20/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.
    • Up to $160 off
      Cusco [03-08 350Z, 09-20 370Z] LSD Type-MZ 1.5 & 2-Way Rear
      Cusco

      LSD Type-MZ 1.5 & 2-Way Rear

      Fits: 03-08 350Z, 09-20 370Z

      $1,44000$1,600.00 Save $160
      Pay over time · Est. $45.00/payment
      ⓘ

      Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

    A Build That Handles Real Power

    When your horsepower increases, your factory components can become a limitation. Buying a well-matched performance drivetrain setup lessens drivetrain loss, improves throttle response, and maintains traction. An upgraded clutch isn’t just about a drive being smoother. It increases holding capacity, and lightweight flywheels improve rev response. The best part? Strengthened axles give confidence, especially under hard launches.

    For vehicles equipped with an all-wheel drivetrain, balanced torque distribution and reinforced components are critical. Differentials and driveshaft upgrades maintain stability while putting down power efficiently.

    Upgrade Strength, Precision & Reliability

    A complete performance drivetrain upgrade isn’t just about handling more power, it’s about refining how that power feels. Enhanced bushings, mounts, and hardware reduce flex and vibration, creating a tighter, more connected driving experience.

    Components like a performance clutch kit or reinforced rear driveshaft improve durability under aggressive driving conditions. When properly selected, these upgrades work together to reduce wheel hop, improve engagement feels, and maximize traction. At JDMuscle, we source drivetrain components from trusted brands known for track-tested reliability and street-proven longevity.

    Whether you’re planning a mild bolt-on setup or a fully built motor, upgrading your performance drivetrain ensures your vehicle is ready for the next level. 

    FAQs

    What does the drivetrain include?

    The drivetrain includes all components that transfer power from the engine to the wheels. So that means: your clutch, transmission, driveshaft, axles, and differentials are all part of the drivetrain.

    How do I know if I need drivetrain upgrades?

    If you’ve increased horsepower or torque, experience clutch slip or drivetrain vibration, or plan to launch your vehicle explosively, upgrading your drivetrain components is a must.

    Do you offer fast shipping?

    Of course! JDMuscle ships the same day on most in-stock items, and that includes Saturdays too! So you can get your parts quickly and keep your build moving.

    What if the part doesn’t fit my vehicle?

    Sometimes, no matter how much you research, the right parts aren’t what you’ve ordered. To make this process easier, we do offer a Garage feature where you can see if the part you’ve ordered is what you need for your car model. But we also offer an easy return policy and responsive customer support to make exchanges or returns simple and stress-free!