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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
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Description
SuperPro 04-11 Mazda RX-8 Rear Differential Support Bushing Kit - Stainless HardwareSuperPro's rear differential center support bushing drastically reduces the deflection of the OEM rubber differential mount under changing loads especially rolling on and off the throttle. This offers benefits in throttle response and in manipulating the cars cornering attitude with the throttle as the car will react more quickly and directly to changes in throttle input. In addition the SPF3404 80K offers a vastly extended service life over the soft
SuperPro's rear differential center support bushing drastically reduces the deflection of the OEM rubber differential mount under changing loads - especially rolling on and off the throttle. This offers benefits in throttle response and in manipulating the cars cornering attitude with the throttle as the car will react more quickly and directly to changes in throttle input. In addition the SPF3404-80K offers a vastly extended service life over the soft rubber OEM piece backed by a lifetime warranty. As the higher durometer version of this kit the SPF3404-80K sharpens responses over the standard version but will come with a small increase in NVH due to the higher durometer material Looking for a more daily driver or street car-friendly version? See our SPF3404-70K; the lower durometer version of the rear center differential mount.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Penny loafers - best new old style
Size: 10, Color: Burgundy Polished Full Grain
These fit great. Real old school style reborn as original. Comfortable leather and looks great with jeans or dress pants.
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Reviewed in the United States on June 25, 2025
★★★★★ 5
Perfect size and style
Size: One Size, Color: Red Jam
Beautiful Bag! Exactly what I was looking for in size and color.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Perfect small purse
Size: One Size, Color: Southwest Desert
Perfect small crossbody!
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Value
Size: One Size, Color: Hot Fudge Suede
Love the leather perfect size
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Reviewed in the United States on April 16, 2026