American made Skid plates for Audi C7 A6/S6/A7/S7/RS7 Cars. The skid plates are Made of 5052  Aluminum. All necessary hardware is included along with complete instruction sheet. Four Rings Auto saw a need for a better solution to the stock plastic skid plate that break or get ripped off if your car is lowered or hit something. This skid plate helps protect against that.

Thickness 0.1155 

***These skid plates are in-stock and drop shipped from manufacturer***

EuroCode ÜSS Billet Aluminum Rear End Links B8 / B8.5 / Q5 / C7 / D4 Chassis

EuroCode’s endlinks are the second part of EuroCode’s USS Stabilization system for the B8/B8.5 A4/S4/A5/S5/RS5, 8R Q5/SQ5 and C7 A6/A7/S6/S7/RS7 platforms, and is meant to be paired with our sway bars and Alu Kreuz drivetrain bar to work as a complete suspension system.  

A very common question is whether or not you will feel this upgrade on the street versus the track, and our answer is simple: absolutely.  The stock links are made from rubber which is inferior to our endlink’s billet aluminum construction.  If you just upgrade your swaybars without the links, you put more pressure on the OEM unit and reduce the efficacy of your swaybars. With this product, the weakest link is removed. Our end links will allow you to fine tune your suspension, reduce the flex and fatigue that is prone with the factory rubber end links, and allow for the corner balancing of the suspension.

The body of Eurocode’s ÜSS rear endlink is T6 billet aluminum with a clear type III hard anodize finish, laser engraved with Eurocode’s logo. Eurocode’s ÜSS rear end link contains a pair of replaceable spherical bearings with Teflon coated bearing races.

Lowering the ride height on factory air suspension equipped cars alters the geometry of the control arm and my produce a slight misalignment of the end link.  To rectify this situation, there is an optional fitment kit available. (Sold seperately)

These end links are a motorsport item and do require maintenence. Overtime the bearings will wear and create noise. We offer rebuild kits for both our front endlinks and rear endlinks.

Eurocode highly recommends rubber dust boots to protect and extend the life of the bearings.

EuroCode ÜSS Billet Aluminum Adjustable Front End Links B8 / B8.5 / B9 / Q5 / C7 / D4 Chassis

EuroCode’s endlinks are the second part of EuroCode’s USS Stabilization system for the B8/B8.5 A4/S4/A5/S5/RS5, 8R Q5/SQ5 and C7 A6/A7/S6/S7/RS7 platforms, and is meant to be paired with our sway bars and Alu Kreuz drivetrain bar to work as a complete suspension system.  

A very common question is whether or not you will feel this upgrade on the street versus the track, and our answer is simple: absolutely.  The stock links are made from rubber which is inferior to our endlink’s billet aluminum construction.  If you just upgrade your swaybars without the links, you put more pressure on the OEM unit and reduce the efficacy of your swaybars. With this product, the weakest link is removed. Our end links will allow you to fine tune your suspension, reduce the flex and fatigue that is prone with the factory rubber end links, and allow for the corner balancing of the suspension.

The body of Eurocode’s ÜSS front adjustable end link is T6 billet aluminum with a clear type III hard anodize finish, laser engraved with Eurocode’s logo and features a threaded body to house the heim joints. The heim joints feature both left and right hand threads for ease of adjustability while on the car. Adjustability range is 155mm to 195mm.

These end links are a motorsport item and do require maintenence. Overtime the bearings will wear and create noise. We offer rebuild kits for both our front endlinks and rear endlinks.

Eurocode highly recommends rubber dust boots to protect and extend the life of the bearings.

For vehicles with an APR Race DP and APR S6/S7 Catback Exhaust System, or APR RS6/RS7 Catback Exhaust System, the APR X-Pipe is a must have. This upgrade creates a smooth transition between the two systems and integrates an x-pipe that reduces backpressure. This upgrade smooths out the exhaust note for a more refined sound profile while also increasing peak torque. Like the rest of the system, the x-pipe is constructed from T304 stainless steel, beautifully TIG welded, and includes all new APR slip clamps. 

These billet aluminum inserts are designed to fill the large voids in the factory transmission and rear differential mounts in the C7 Audi A6/S6/RS6 & A7/S7/RS7, and limit drivetrain movement without sacrificing ride quality or introducing any additional noise, vibration, or harshness into the cabin.

By filling the voids in the factory mounts, this package eliminates the associated slop to ensure that you experience crisper shifts, harder launches, and a smoother driving experience.

Upgraded driveshaft carrier bearing support.  The OEM unit is prone to failure often resulting in rear differential failure due to pinion angle change.  Billet aluminum construction and custom polyurethane bushings keep the driveshaft right where it should be.

TiAl Wastegate actuator kit designed specifically for the Audi 4.0TFSI engine

Need customized tune settings beyond what the Dyno Spectrum OTS maps provide?

Rolling anti-lag

Pops and bangs

Exhaust flap and sound tuning

Rev limiter changes

4 Bar map sensor implementation

DS1 port injection, meth injection, nitrous controller implementation 

THIS SERVICE DOES NOT INCREASE POWER OUTPUT.  For more involved custom calibrations to increase performance, you must speak directly with one of our representatives.  

The largest intake system that's available for the 4.0tt platform with a true full 2.5" intake runner all the way to the turbo.  Inlet depression on the stock turbo can reach 750mbar while our inlet pipe doesn't drop below 900  resulting in a free 3-4psi on the top end.  30-40hp gains consistently at redline.  5 axis machined inlet snouts are welded to mandrel-bent tubing specifically designed for this application.  Fits S6 S7 RS6 RS7 4.0TFSI applications.  This does NOT fit the D4 S8.

*If purchasing for model A8, please purchase our S8 intakes*

Turn-key solution for as-close-as direct port can get on the 4.0TFSI.  Available as a complete kit with controller/pump/tank/ptfe lines or just the essential non-standard hardware, cnc'd brackets/spacers, silicone hoses and stainless hardware.

Nozzle Size Guide

Audi C7/C7.5 Eurocode Alu Kreuz Drivetrain Stabilizer

Eurocode Tuning's Alu Kreuz (pronounced kroitz) drivetrain stabilizer for the C7 chassis Audi's to include the A6, S6, A7, S7 and RS7. The Alu Kreuz replaces the factory multi piece drive train stabilizer with one solid, lightweight structural member to further stiffen the chassis and prevent unwanted suspension deflection. All 6 mounting points are secured to one single plane; the net result is sharper steering with a reduction in chassis flex.

Who would benefit from the addition of the Alu Kreuz?  We feel that if you enjoy spirited driving, like to take the on ramps and off ramps of the highway a little quicker than you peers, enjoy a nice drive through the canyons (twisties), the occasional track day or high performance driving class or just want to run your car balls out on the road course, the Alu Kreuz is perfect for you.

Testing:

During our testing of the 2013 and up C7 chassis cars which are comprised of the Audi A6, S6, A7, S7 and RS7 we found that there was quite a bit of torsional flex coming from the factory subframe/engine carrier. This torsional flex produced what we felt to be incorrect steering sensitivity and response in all aspects of driving. To combat this unwanted characteristic, we did a thorough examination of the front suspension, chassis unibody, and the engine carrier/subframe. Our conclusion was that the OEM hollow steel drivetrain stabilizer underperformed.

Design:

The team at Eurocode set out to combat this torsional flex and decided to redesign the drivetrain stabilizer. Our first step was to analyze the material that the factory stabilizer was made up of and then create a load case scenario in which to test it under. We sent out a sample for materials testing and found the factory stabilizer to be made up of carbon steel with a density of 0.284 lb/in3, predominately hollow and stamped into shape. The OEM stabilizer is made up of nine separate pieces, and they are all welded together to form one single unit. Once all of this data was collected and loaded, our team set out with the goal of improving chassis rigidity and weight reduction. Our team found that a replacement stabilizer manufactured out of billet aluminum would accomplish our goals, so the next step was the design process.

Our design process went through several revisions, with each version being loaded into computer modeling to test how it would stack up against the inferior OEM product; these revisions were also built and tested not only on the road, but as well as on a closed course with the feedback provided by a professional driver to the design engineers.

The finished product, which we dub “Alu Kreuz”, is incredible. It features a one piece, billet 6061-T6 aircraft aluminum construction, type III hard anodized coating, and all necessary provisions to attach the OEM sound deadeners. It requires zero modification to the vehicle, and works perfectly with the OEM power steering cooler. The Alu Kreuz is also nearly two pounds lighter than the OEM brace and greatly improves chassis torsional rigidity. It looks amazing as well.

Independent analysis was performed on the product and the conclusions were that in each of the pre set load case scenarios, the Alu Kreuz deflected less than the OEM stabilizer, carries less stress for a given applied load and the fatigue life of the product is greater than OEM.

Installation Guide

Note: Does Not Fit right hand drive cars.