034Motorsport Density Line Street Density Engine Mount Pair for Audi S5 (2008–2012) and RS5 (2013–2015) 4.2 V8

Built for the 4.2-liter FSI V8, this 034Motorsport Street Density engine mount pair replaces both factory engine mounts on the 2008–2012 Audi S5 and the 2013–2015 Audi RS5. The mounts use 65 durometer rubber, compared with the 45 durometer rubber in the stock S5 and RS5 mounts. Being void-free and solid-filled, they are substantially stiffer than stock, and 034Motorsport reports no noticeable increase in cabin noise, vibration, or harshness. The mount bodies are cast aluminum made with factory production techniques. Leakage and collapse are common problems with the factory mounts, and the fluid-free design removes both failure modes. The pair is made in the United States.

034Motorsport parts sold by PMB Performance carry a 24-month warranty.

Many of these V8 cars left the factory with active engine mounts, which the engine electronics monitor. Each 034Motorsport mount has a built-in emulator with a plug-in connector that replicates the factory mount electronics, so cars with active mounts run without a malfunction indicator light. The pair takes the place of factory Audi numbers 8R0 198 381 F, 8R0 199 381 AG, and 8R0 199 381 AH. These are complete re-engineered mounts, not inserts for the factory units, and 034Motorsport tested them in-house and with Audi owners before release. An engine mount ties the engine to the subframe and soaks up vibration, so a collapsed or leaking mount lets the V8 shift under load and sends more shake into the cabin. 034Motorsport, founded by Javad Shadzi in 2005, develops its Audi parts at its Fremont, California, facility.

Technical Details

• Manufacturer: 034Motorsport, Density Line
• Part number: 034-509-5010-SD
• Sold as a pair
• Rubber: 65 durometer, void-free and fluid-free (stock mounts use 45 durometer)
• Mount bodies: cast aluminum
• Built-in active mount emulator with plug-in connector
• Engine: 4.2 FSI V8
• Replaces factory Audi numbers 8R0 198 381 F, 8R0 199 381 AG, and 8R0 199 381 AH
• Made in the United States
• Warranty: 24 months

Installation & Tuning Notes

On cars equipped with factory active mounts, the emulator plugs into the factory connector for a plug-and-play installation, and no wiring changes are needed.

Common Questions

Will removing my active mounts turn on a warning light?
No. The built-in emulators replicate the factory mount electronics, so the car runs without a malfunction indicator light.

Can these mounts leak like the factory ones?
No. They are solid rubber with no fluid chamber, which removes the leakage and collapse common with stock mounts.

PMB Performance offers this pair to S5 and RS5 owners chasing a tighter V8 drivetrain.

Fitment & Compatibility

Check the fitment table below for your exact model and year. Send us your VIN and we will confirm fit before you order.