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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
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Description
Wavetrac Rear Differential 01R B5 B6 B7 Audi A4 S4 Quattro & B5 RS4Wavetrac diffs are state of the art helical gear differentials designed, developed, and manufactured in the USA by Autotech Driveline. The Wavetrac Audi A4 & S4 Quattro Differential is the only torque biasing differential on the market with patent pending technology that mitigates wheelspin when an unloaded wheel condition arises. During zero axle load conditions, the Wavetrac cam device acts to create internal load, maintaining drive on the gripping
Wavetrac diffs are state-of-the-art helical gear differentials designed, developed, and manufactured in the USA by Autotech Driveline. The Wavetrac Audi A4 & S4 Quattro Differential is the only torque biasing differential on the market with patent-pending technology that mitigates wheelspin when an unloaded wheel condition arises. During zero axle load conditions, the Wavetrac cam device acts to create internal load, maintaining drive on the gripping wheel instead of acting like an open diff (and going nowhere!). Super strong 9310 alloy steel gears are enclosed in case-hardened steel bodies, held together with ARP fasteners. All Wavetrac rear differentials include a transferable, Limited Lifetime Warranty.
*Includes bearing spacer for small end side of the differential, only needed on some models
Note: Fits: Audi Rear A4 S4 RS4 (B5) Quattro Audi Rear A4 S4 (B6/B7) Quattro (not B7 RS4)
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
4.7 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Excellent Midlayer for Golf
Color: Light Brown Heather, Size: X-Large
My dad has been wearing this M MAELREG hoodie for about a week now, specifically during my early morning golf rounds where the temperature sits in the low 50s. The fit is true to size with an "athletic" cut, meaning it’s tapered enough to look sharp but has enough stretch and light enough to allow for a full shoulder turn during a golf swing. The cost is also a lot lower than some of the tech golf shirts out there. Overall this is a great shirt for golfing with an expensive look.
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Reviewed in the United States on January 14, 2026
★★★★★ 4
Good not great
Color: Blue Heather, Size: XX-Large
Good hoodie. Don’t know if it’s worth the price. Would feel better if it was $10 cheaper
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Reviewed in the United States on January 5, 2026
★★★★★ 5
Comfortable and casual enough for daily wear but still looks like you put thought into your look
Color: Grey Heather, Size: 3X-Large
Got this for my husband and was so pleased with the quality and fit. He wears it on top of his tee shirt and says it's one of the most comfortable hoodie he's worn. It's not too thick, but very warm. Great value as he wears it daily. Love the casual style while still looking put together.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Highly recommend
Big fan, have purchased multiple
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Reviewed in the United States on April 1, 2026
★★★★★ 4
Strechy and silky
Color: Grey Heather, Size: X-Large
Super stretchy and very silky feeling. It’s the same look at the lulu hoodie with similar material, but it’s different fabric. Very stretchy very silky
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Reviewed in the United States on January 8, 2026