SuperPro Rear 6mm Lower Spring Isolator — Fits 2004 Pontiac GTO

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SKU: SPRSPF1358-6K
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Superpro

Superpro engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Superpro lineup with fast shipping and expert fitment support — order with confidence.

SuperPro Rear 6mm Lower Spring Isolator for 2004 Pontiac GTO

Fine-tune your 2004 Pontiac GTO's rear suspension with the SuperPro 6mm Lower Spring Isolator. This specialized component is designed to provide a subtle 6mm reduction in rear spring height, helping you achieve a more aggressive stance or correct minor imbalances in ride height. It ensures proper spring seating and contributes to overall suspension stability.

Enhance Your GTO's Rear Suspension:

  • Subtle Lowering: Provides a 6mm drop at the rear spring, ideal for achieving a desired aesthetic or improving aerodynamic balance.
  • Secure Spring Fitment: Guarantees the rear coil spring is correctly positioned and seated, preventing unwanted movement and noise.
  • Increased Stability: Contributes to a more stable rear end during spirited driving by ensuring consistent spring support.
  • Durable Material: Constructed from high-quality, resilient materials engineered to withstand the rigors of automotive suspension use.
  • Direct Fit Design: Engineered specifically for the 2004 Pontiac GTO, ensuring a straightforward installation process.

This SuperPro spring isolator is a simple yet effective modification for GTO owners seeking to refine their vehicle's appearance and handling. It's a perfect solution for those wanting a slight lowering effect without the complexity of full coilover systems. Upgrade your Pontiac GTO with performance-enhancing suspension components from GGCRACING.

Vehicle Fitment

Years Make Model Trim
1992-1998 BMW 318i Base
1992-1997 BMW 318is Base
1995-1999 BMW 318ti Base
2000 BMW 323Ci Base
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
2001-2006 BMW 325Ci Base
1992-1995 BMW 325i Base
2001-2005 BMW 325i Base
1992-1995 BMW 325is Base
1996-1999 BMW 328i Base
1996-1999 BMW 328is Base
2001-2006 BMW 330Ci Base
2001-2005 BMW 330i Base
2001-2006 BMW M3 Base
2009-2011 BMW Z4 sDrive30i
2009-2016 BMW Z4 sDrive35i
2011-2016 BMW Z4 sDrive35is
2012-2016 BMW Z4 sDrive28i

Product Details

Product Description
Part Numbers
Sizing & Fit

About Superpro

Superpro engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Superpro lineup with fast shipping and expert fitment support — order with confidence.

SuperPro Rear 6mm Lower Spring Isolator for 2004 Pontiac GTO

Fine-tune your 2004 Pontiac GTO's rear suspension with the SuperPro 6mm Lower Spring Isolator. This specialized component is designed to provide a subtle 6mm reduction in rear spring height, helping you achieve a more aggressive stance or correct minor imbalances in ride height. It ensures proper spring seating and contributes to overall suspension stability.

Enhance Your GTO's Rear Suspension:

  • Subtle Lowering: Provides a 6mm drop at the rear spring, ideal for achieving a desired aesthetic or improving aerodynamic balance.
  • Secure Spring Fitment: Guarantees the rear coil spring is correctly positioned and seated, preventing unwanted movement and noise.
  • Increased Stability: Contributes to a more stable rear end during spirited driving by ensuring consistent spring support.
  • Durable Material: Constructed from high-quality, resilient materials engineered to withstand the rigors of automotive suspension use.
  • Direct Fit Design: Engineered specifically for the 2004 Pontiac GTO, ensuring a straightforward installation process.

This SuperPro spring isolator is a simple yet effective modification for GTO owners seeking to refine their vehicle's appearance and handling. It's a perfect solution for those wanting a slight lowering effect without the complexity of full coilover systems. Upgrade your Pontiac GTO with performance-enhancing suspension components from GGCRACING.

Vehicle Fitment

Years Make Model Trim
1992-1998 BMW 318i Base
1992-1997 BMW 318is Base
1995-1999 BMW 318ti Base
2000 BMW 323Ci Base
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
2001-2006 BMW 325Ci Base
1992-1995 BMW 325i Base
2001-2005 BMW 325i Base
1992-1995 BMW 325is Base
1996-1999 BMW 328i Base
1996-1999 BMW 328is Base
2001-2006 BMW 330Ci Base
2001-2005 BMW 330i Base
2001-2006 BMW M3 Base
2009-2011 BMW Z4 sDrive30i
2009-2016 BMW Z4 sDrive35i
2011-2016 BMW Z4 sDrive35is
2012-2016 BMW Z4 sDrive28i

Product Details

Product Description

About Superpro

Superpro engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Superpro lineup with fast shipping and expert fitment support — order with confidence.

SuperPro Rear 6mm Lower Spring Isolator for 2004 Pontiac GTO

Fine-tune your 2004 Pontiac GTO's rear suspension with the SuperPro 6mm Lower Spring Isolator. This specialized component is designed to provide a subtle 6mm reduction in rear spring height, helping you achieve a more aggressive stance or correct minor imbalances in ride height. It ensures proper spring seating and contributes to overall suspension stability.

Enhance Your GTO's Rear Suspension:

  • Subtle Lowering: Provides a 6mm drop at the rear spring, ideal for achieving a desired aesthetic or improving aerodynamic balance.
  • Secure Spring Fitment: Guarantees the rear coil spring is correctly positioned and seated, preventing unwanted movement and noise.
  • Increased Stability: Contributes to a more stable rear end during spirited driving by ensuring consistent spring support.
  • Durable Material: Constructed from high-quality, resilient materials engineered to withstand the rigors of automotive suspension use.
  • Direct Fit Design: Engineered specifically for the 2004 Pontiac GTO, ensuring a straightforward installation process.

This SuperPro spring isolator is a simple yet effective modification for GTO owners seeking to refine their vehicle's appearance and handling. It's a perfect solution for those wanting a slight lowering effect without the complexity of full coilover systems. Upgrade your Pontiac GTO with performance-enhancing suspension components from GGCRACING.

Vehicle Fitment

Years Make Model Trim
1992-1998 BMW 318i Base
1992-1997 BMW 318is Base
1995-1999 BMW 318ti Base
2000 BMW 323Ci Base
1998-2000 BMW 323i Base
1998-1999 BMW 323is Base
2001-2006 BMW 325Ci Base
1992-1995 BMW 325i Base
2001-2005 BMW 325i Base
1992-1995 BMW 325is Base
1996-1999 BMW 328i Base
1996-1999 BMW 328is Base
2001-2006 BMW 330Ci Base
2001-2005 BMW 330i Base
2001-2006 BMW M3 Base
2009-2011 BMW Z4 sDrive30i
2009-2016 BMW Z4 sDrive35i
2011-2016 BMW Z4 sDrive35is
2012-2016 BMW Z4 sDrive28i

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