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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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Description
DSS 800hp Rear Axle Bar Upgrade | B5 S4Picture may vary slightly from actual product. This is a set of axle bars and internal Chromoly parts to upgrade the rear axles for the 99 05 Audi S4. The factory axles are made with a major flaw, being that the outer spline is a small 30 splines and inner is a bigger 33 splines, making the end of the bar at the outer CV receive excessive concentrated stress. What we have done is make high grade internals for both the inner and outer CVs to be able to
Picture may vary slightly from actual product.This is a set of axle bars and internal Chromoly parts to upgrade the rear axles for the 99-05 Audi S4. The factory axles are made with a major flaw, being that the outer spline is a small 30 splines and inner is a bigger 33 splines, making the end of the bar at the outer CV receive excessive concentrated stress. What we have done is make high-grade internals for both the inner and outer CVs to be able to put one of our larger 36 spline torsional center bars on the factory CVs. Initially, the front axles were normally the main issue with this car, but as the bar has been raised on this platform, so has the need for stronger axles.
We can also make custom axles for even higher HP, but we would need to take the factory wheel hubs and re-broach them to a larger spline for one of our larger outer CV's. Call or email for more information.
This kit comes complete with a pair of high-grade Aerospace quality proprietary torsional axle bars, all Chromoly races to upgrade the inner and outer CV's, boots, clamps, and grease.
Most people will be able to assemble this kit, but if you would prefer us to do it for you, we charge 50.00 per axle for assembly of the parts. Please call for the RMA number to send in your axles.
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 1
I should have read all the other reviews ...
Color: Single Slat Gloss Black, Size: 2010-2013 E92, Color: Single Slat Gloss Black, Size: 2010-2013 E92
I read all the bad reviews, but I gave it a shot anyways
Tabs wont clip in place and fitment is slightly off.
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Worth it
Color: Single Slat Gloss Black, Size: 2006-2009 E92
For perfect and looks great
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Reviewed in the United States on February 5, 2026
★★★★★ 5
Very nice quality
Color: Single Slat Gloss Black, Size: 2019-2022 G20
I have a 2022 330i bmw and it fit perfectly! Looks just like photos online and delivered quick!
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Reviewed in the United States on August 27, 2025
★★★★★ 4
Good Item
Color: Single Slat Gloss Black, Size: 2002-2005 E46
Good cost to product ratio, but fitment is a little loose
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Grille-ing Me Softly: A 30-Minute Makeover Adventure
Color: Single Slat Gloss Black, Size: 2019-2022 G20, Color: Single Slat Gloss Black, Size: 2019-2022 G20
Installing this grille was a breeze! It took me about 30 minutes, even with a minor hiccup of having to uninstall it to add the front camera panel I initially forgot. The grille feels incredibly durable, made from plastic that matches the quality of the OEM version. Plus, it gives my car a fresh, youthful look. Highly recommend for a quick and stylish upgrade!
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Reviewed in the United States on May 29, 2025