This 2000 Audi S4 is a right-hand-drive example from Ireland finished in Panther Black over a black leather interior. The twin-turbocharged 2.7-liter V6 is paired with a manual transmission. The car has been extensively modified with OEM+ RS components and aftermarket hardware, and is now offered by Open Air Imports with a 16-photo gallery.

The exterior carries a full RS4 conversion, including front and rear fenders, doors, and front bumper, with the S4 rear bumper wearing RS4 lower trim. A US-market S4 trunk lid, a carbon-skinned Maxton front splitter, and carbon Opel GTE-style hood gills distinguish the build. The Panther Black paint has an eight-year ceramic coating; the seller discloses small age-related marks on the bodywork but otherwise describes the finish as top quality. It rides on 20x10 OZ Racing Superturismo Dakar wheels with an MG-Line center cap kit.

Inside, the cabin has been fitted with Recaro RS3 Wingback seats, an RS4 instrument cluster with multi-function display, RS4 carbon trim, an Audi TTRS flat-bottom steering wheel, and an AEM boost gauge with methanol controller. The A7 rear bench, a 2015 A4 rearview mirror, and updated sunroof controls add later-model components, while factory black leather trim remains.

The engine has been fitted with TTE550 turbochargers, THE Tuner intake pipes, 3-inch downpipes, a custom exhaust, a Bosch 044 fuel pump, an APR bi-pipe, Wagner intercoolers, 630cc Siemens Deka injectors, an AEM methanol injection system, a front-mount oil cooler, and MRC software. The powertrain uses a B5 RS4 clutch and flywheel. Airlift Performance air suspension with 3P management rides on a seamless carbon-skinned airtank, with H&R anti-roll bars, 034 Motorsport billet subframe reinforcement, and B5 RS4 upper control arms. Braking comes from R8 380mm ceramic front brakes and RS6 356mm ceramic rears with Lamborghini handbrake calipers. The seller notes that the current engine map is not good and will need work by a tuner to optimize the setup.

The B5 S4's 2.7-liter twin-turbo V6 earned it a strong following among tuners, and this car follows that path with RS4 bodywork and extensive performance hardware.

The seller notes that thousands of additional photos are available on request.