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JXB Performance Billet Linkage Reinforcement Kit - B8/B8.5 A4/S4/A5/S5

SKU: B8029A0

Sale price$249.99

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Product Information

Everybody knows the stock linkage sucks. It doesn’t perform well, it sucks to swap out, and it’s expensive to replace. After an in-depth look at it, we came to the conclusion that it wasn’t all bad. There are plenty of good parts in it. The rod that runs from the shift lever to the crossrod is rigid as can be. The plastic coupling that holds the socket for the lower ball joint and the ball for the upper ball joint is very well-made. It has thick reinforcement ribs and doesn’t flex at all under load.

Where the wheels start to fall off is when we look at the ball joints and the crossrod. The lower ball joint in particular is housed in a flexible plastic and rubber socket that squishes and flexes under load. The plastic crossrod is flexible as can be. It flexes a great amount under load, leading to getting stuck in the reverse track more easily on the 1-2 shift, and generally adding slop to the shift pattern. The crossrod bushing is also fairly soft and can be seen flexing. We replaced that with a stiff polyurethane bushing held in place with a precision stainless shoulder bolt for a perfect no-slop no-flex interface. Though also plastic, the upper ball joint isn’t too bad, but since we’re addressing the crossrod, we decided to beef it up while we’re in there.

So instead of replacing the whole linkage, this kit transforms the stock linkage by replacing the 2 ball joint cups, the crossrod, and the crossrod bushing/bolt.

What's Included:

  • JXB Performance Billet Linkage Reinforcement Kit

Installation:

Here’s the kicker. By only focusing on these parts, we don’t have to pull the linkage out of the car. In fact, you don’t have to unhook it from the shift lever, and the entire thing is done very easily from underneath the car on jack stands. You don’t have to drop your trans. You don’t have to touch your exhaust. You don’t have to touch your x-brace. You don’t have to do anything from the cabin. You don’t even have to readjust your shifter. It’s seriously easy.

  1. Raise car.

  2. Remove transmission splash shield.

  3. Remove M10 triple square slave cylinder bolt and pull out of transmission (not required but helps make space for your hands). Note, this does not affect the hydraulic system so no bleeding is required afterwards.

  4. Place jack under tailshaft of transmission to support.

  5. Undo 4 M12 triple square bolts holding trans support bracket to body.

  6. Lower jack to allow rear end of transmission to sag until you have enough room to get your hands above the transmission.

  7. Undo 13mm nut and take linkage off splined shift selector shaft on driver side of transmission.

  8. Undo 13mm bolt that holds crossrod to transmission. At this point the linkage can be pulled down on the side of the transmission and the retrofit activities will be done around the level of the x-brace.

  9. Remove 2 T20 screws holding dust boot on bottom of linkage.

  10. Pull lower ball joint and socket out of linkage.

  11. Place 2 JXB lower ball joint cups around the ball and push back into linkage.

  12. Replace 2 T20 dust boot screws.

  13. Use pick or screwdriver to retract upper ball joint socket.

  14. Pull upper ball joint from crossrod and discard crossrod and upper socket.

  15. Screw JXB crossrod around upper ball.

  16. Reattach JXB crossrod to transmission using new shoulder bolt and bushing.

  17. Reattach linkage to splined selector shaft and replace nut.

  18. Put slave cylinder back into trans and secure bolt.

  19. Jack rear end of trans back up and resecure bracket with 4 bolts.

  20. Replace transmission splash shield and lower car.

This is a 2-hr job for your average home mechanic.

NOTE: Product images shown may not be an exact representation of the actual product.

Model   + Drivetrain  
B8 A4 2.0T I4 +
B8 A4 3.2L V6 +
B8 A5 2.0T I4 +
B8 A5 3.2L V6 +
B8 S4 3.0L SC V6
B8 S5 3.0L SC V6
B8 S5 4.2L V8

Return and Exchange Policy

The Return & Exchange Policy below outlines our current terms. While we try to adhere strictly to the guidelines detailed below, there are always exceptions to the rules, please speak to a BMP Tuning Customer Support Representative for clarification on anything you might have questions about - contact us.


Order Cancellations

Order Cancellation Hours of Operation

  • All order cancellations are processed during regular business hours only. Any order cancellation requests made outside of normal business hours will be processed during the next business day.

Order Cancellation Fees

  • Any cancelled orders including orders that have not shipped will be subject to a 5% cancellation fee to offset order processing fees that are not refunded to BMP Tuning by financial institutions and fee is waived completely if store credit is requested.
  • Cancellation fee applies to any order regardless of stock status, please contact BMP Tuning if there are any questions regarding stock status before placing an order.
  • If an order has already been processed or shipped and BMP Tuning is unable to cancel the order, the customer will be responsible for returning the item to us once received. Once the return is received it will be processed like any other return and be subject to the "Return and Exchange Policy" listed below.  
  • Certain products sold cannot be cancelled after the order has been placed due to agreements with the manufacturer, or in the case of made to order/custom items. This may be noted in the product description, but feel free to contact us to make sure before ordering.
  • Any order placed via Katapult are non-refundable; refunds, if required, will be issued via store credit only.

Return & Exchange Policy

Domestic Orders

  • BMP Tuning will accept returns for unused products within 1 year/365 Days from the date of purchase.
  • Returned products must be new, unused, and must be in the original packaging, including labeling, manuals, hardware, etc.  Special order items are non-refundable.
  • Returns will NOT be processed for any received products without the proper RMA Form completed and included with the return, customer will also be responsible for return shipping to their original shipping address.
  • Returns beyond 60 days of original purchase once processed can only be refunded as BMP Tuning store credit.
  • In the case of an exchange, BMP Tuning will waive normal restocking fees and only collect for original shipping of the returned product unless otherwise stated by a BMP Tuning Customer Service Representative when requesting your RMA number.
  • Once store credit has been issued for a return, it is final and cannot be reversed or exchanged for a refund to your original payment method at a later time. Please ensure you are comfortable with receiving store credit before completing your return.
  • Contact us within 7 days of delivery if an item has arrived damaged or incorrectly so that we can rectify the situation with the responsible party. Any notifications past 7 days from delivery could cause issues with replacement and BMP Tuning is not liable for any mis-shipments or damaged items if notified past the 7th day.
  • Once delivered to shipping address provided, packages are customer’s responsibility—consider requesting a signature upon delivery or insuring your order with Route.

International Orders

  • New, unopened products can be returned within 60 days of purchase.
  • Opened/used products and Scratch & Dent parts cannot be returned.
  • Contact us within 7 days if your item is damaged upon receipt.
  • Once delivered, packages are customer’s responsibility—signature confirmation is available upon request.
  • Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Fees & Shipping:

  • Customer is responsible for a 20% restocking fee, original shipping, and return shipping. 
  • In instances where the customer received FREE shipping, the shipping amount that BMP Tuning paid on behalf of the customer will be deducted from the total refund.
  • BMP Tuning's restocking fee is waived in the instance customer requests store credit as long as the item is being returned to BMP Tuning and not the manufacture directly.
  • Any orders that are returned to BMP Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our "Return and Exchange Policy", including a 20% restocking fee.
  • Any returns that are denied for any reason will be sent back to the customer at the customers expense. Any denied return left with BMP Tuning longer than 30 days is considered forfeited by the customer and will be disposed of by BMP Tuning at BMP Tuning's discretion.
  • Any order placed via Katapult are non-refundable; refunds, if required, will be issued via store credit only.

Route Shipping Protection - Refunds & Cancellations

  • Route shipping protection is an insurance purchased for your shipment. Because of this, any protection on items that have already been shipped cannot be refunded.
  • If your order is cancelled PRIOR to the items shipping, then the Route purchase can be refunded with the cancelled item(s). Once the order has shipped, we cannot refund the Route shipping protection.

Tariffs & Duties – No Refund Upon Return

  • BMP Tuning is not responsible for any tariffs, duties, or import fees charged by customs authorities or shipping carriers.
  • If you return an item, any tariff or duty you paid at delivery will not be refunded by BMP Tuning, as those are non-refundable government charges.
  • Refunds for returned items will be limited to the cost of the product (minus applicable fees), not including any tariffs or duties originally paid.
Additional Notes
  • Please ensure you understand your country’s import fee obligations prior to ordering.
  • If you have questions about potential tariffs, duties, or returns, contact us before placing your order—we’re happy to assist.
  • All existing policy conditions (restocking fees, RMA requirement, return shipping responsibilities) still apply as stated in the original policy.


Product Return Exemptions

Tuning Software And Cables

BMP Tuning will NOT accept returns for any tuning software or tuning cables. This includes, but is not limited to:

  • ECU Tunes
  • TCU Tunes
  • Tuning Cables such as IE POWERlink V4 Flash Cable, APR Ultralink, Unitronic UniCONNECT+ Cable, 034Motorsport Dynamic+ Tuning Cable
  • Plug and Play Tuners such as Burger Motorsports JB4, COBB AccessPort
  • OBDEleven Pro

Scratch & Dent, Open Box, and Clearance Items

There are absolutely no returns on any product sold as "Scratch & Dent", "Open Box", or "Clearance." 


Pricing Or Photo Errors

  • While we always try to provide the most accurate product and pricing information, we are humans and can make mistakes. If we listed an incorrect price or information for any product on our site, BMP Tuning reserves the right to refuse or cancel any orders placed. PRICING AND AVAILABILITY ARE SUBJECT TO CHANGE WITHOUT NOTICE.
  • We try to ensure that all products are represented properly in description and photo. However, due to photos provided from manufacturers, sometimes a photo might be outdated or a generic photo for the part may be used for the item. If you have any questions about any product, please contact us before placing your order.

 


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