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    • Up to $294 off
      In Stock
      ACT Heavy Duty 06 - 25 Subaru WRX Clutch Kit (Part Number: actSB12 - HDG6) - JDMuscleSPK1016459
      ACT

      HD/Race Sprung 6 Pad Clutch Kit

      Fits: 06-26 WRX

      Only 2 left
      $1,25400$1,548.00 Save $294
      Pay over time · Est. $39.19/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 $60 off
      ACT

      Replacement Flywheel for Subaru WRX/STi Mod Twin Kit – Part Number ACT601210P

      $25700$317.00 Save $60
    • Up to $281 off
      ACT Heavy Duty Rigid 6 Pad Clutch Kit for Subaru WRX – Part Number SB12 - HDR6 - JDMuscleSPK1016573
      ACT

      HD/Race Rigid 6 Pad Clutch Kit

      Fits: 06-26 WRX

      $1,19800$1,479.00 Save $281
      Pay over time · Est. $37.44/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.
    • Subaru OEM [02 - 05 WRX, 04 - 05 FXT] Flywheel - JDMuscleFlywheels12342AA071
      Subaru OEM

      Flywheel

      Fits: 02-05 WRX, 04-05 FXT

      $33632
      Pay over time · Est. $10.51/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 $294 off
      ACT 06 - 25 Subaru WRX XT Performance Street Sprung Clutch Kit with Xtreme Pressure Plate - JDMuscleSPK1019810
      ACT

      XT/Perf Street Sprung Clutch Kit

      Fits: 06-26 WRX

      $1,25400$1,548.00 Save $294
      Pay over time · Est. $39.19/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 $277 off
      ACT Heavy Duty Rigid 4 Pad Clutch Kit for Subaru WRX (Part Number: actSB12 - HDR4) - JDMuscleSPK1016460
      ACT

      HD/Race Rigid 4 Pad Clutch Kit

      Fits: 06-26 WRX

      $1,18000$1,457.00 Save $277
      Pay over time · Est. $36.88/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 $306 off
      In Stock
      ACT 06 - 25 Subaru WRX XT/Race Sprung 6 Pad Clutch Kit – High - Performance Pressure Plate and Race Disc - JDMuscleSPK1016578
      ACT

      XT/Race Sprung 6 Pad Clutch Kit

      Fits: 06-26 WRX

      Only 2 left
      $1,30400$1,610.00 Save $306
      Pay over time · Est. $40.75/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 $299 off
      ACT 06 - 25 Subaru WRX XT/Race Sprung 4 Pad Clutch Kit - High - Performance Pressure Plate and Race Disc - JDMuscleSPK1016576
      ACT

      XT/Race Sprung 4 Pad Clutch Kit

      Fits: 06-26 WRX

      $1,27700$1,576.00 Save $299
      Pay over time · Est. $39.91/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 $289 off
      ACT SB12 - XTR4 Subaru WRX XT/Race Rigid 4 Pad Clutch Kit - JDMuscleSPK1019808
      ACT

      XT/Race Rigid 4 Pad Clutch Kit

      Fits: 06-26 WRX

      $1,23000$1,519.00 Save $289
      Pay over time · Est. $38.44/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 $293 off
      ACT 06 - 25 Subaru WRX XT/Race Rigid 6 Pad Clutch Kit with Xtreme Pressure Plate - JDMuscleSPK1019809
      ACT

      XT/Race Rigid 6 Pad Clutch Kit

      Fits: 06-26 WRX

      $1,24800$1,541.00 Save $293
      Pay over time · Est. $39.00/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.
    • Subaru OEM [18 - 26 WRX] Flywheel - JDMuscleFlywheels12342AA171
      Subaru OEM

      Flywheel

      Fits: 18-26 WRX

      $53245
      Pay over time · Est. $16.64/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
      OVERTAKE Transmission Crossmember Bushing Kit - Subaru 2008 - 2026 WRX, 2008 - 2021 STI - JDMuscleDrivetrainA10481
      OVERTAKE

      Transmission Crossmember Bushing Kit

      Fits: 08-26 WRX, 08-21 WRX STI

      $5000
    • CP - E xFlex™ Mazda Rear Motor Mount Mazdaspeed3 Stage 2 - JDMuscleMotor MountsMZXM00003B
      Custom Performance Engineering

      CP-E xFlex™ Mazda Rear Motor Mount Mazdaspeed3 Stage 2

      $25995
      Pay over time · Est. $8.12/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.
    • CP - E xFlex™ Mazda Mazdaspeed6 Rear Motor Mount - JDMuscleMotor MountsMZXM00008B
      Custom Performance Engineering

      CP-E xFlex™ Mazda Mazdaspeed6 Rear Motor Mount

      $18495
    • Up to $82 off
      In Stock
      CP - E xFlex™ Mazda Mazda3/Mazdaspeed3 Passenger Side Motor Mount - JDMuscleMotor MountsMZXM00006B55A
      Custom Performance Engineering

      CP-E xFlex™ Mazda Mazda3/Mazdaspeed3 Passenger Side Motor Mount

      Only 18 left
      From $31195$389.95 Save $78
      Pay over time · Est. $9.75/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 $75 off
      In Stock
      CP - E xFlex™ Mazda Mazdaspeed3 Driver Side Motor Mount - JDMuscleMotor MountsMZXM00004B55A
      Custom Performance Engineering

      CP-E xFlex™ Mazda Mazdaspeed3 Driver Side Motor Mount

      Only 8 left
      From $28395$354.95 Save $71
      Pay over time · Est. $8.87/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.

    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!