Custom Offsets carries wheels and tires, suspension, performance parts, and exterior and interior accessories for the B8 Audi S5, all backed by verified fitment data and real builds from our community.
See what other owners are running on their 2015 Audi S5 – real fitment data from real cars.
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The B8 Audi S5 ran from 2008 through 2016 and came in three body styles: coupe, cabriolet, and sportback hatchback. All share the same quattro all-wheel-drive platform and the same core fitment profile, making this one of the more versatile European sport coupes to build on. The early coupe carried a 4.2-liter FSI V8, while the cabriolet and sportback ran a supercharged 3.0-liter TFSI V6 from the start. When the B8.5 facelift arrived for 2013, Audi dropped the V8 from the coupe lineup and unified the range around the supercharged V6, also adding stop-start and a refreshed front end with new LED DRLs and a revised grille. The result is a generation that spans two distinct visual eras but shares the same suspension geometry, bolt pattern, and fitment envelope throughout. Enthusiasts love the B8 S5 for its balanced AWD chassis, its willingness to drop on coilovers or air suspension without drama, and the wide aftermarket support that comes with sharing a platform with the A4, A5, and S4.
Running the factory suspension, the B8 S5 already sits at a respectable ride height, but there is real room to sharpen the stance without touching the springs. Wheel and tire choices open up across 19- and 20-inch diameters, and the factory geometry handles a range of offsets cleanly. Most builds at this level bolt on clean with no rubbing reported, making stock suspension a solid starting point for a clean, daily-driven look before committing to a drop.
A set of lowering springs is the most straightforward way to reduce ride height on the B8 S5. Springs drop the car on the factory struts, tightening the wheel gap and giving the coupe or sportback a noticeably more planted look. The ride stays composed for daily use, and fitment at this level remains clean across the most popular 19- and 20-inch setups. Builders who want a defined drop without the complexity of a full coilover install typically land here first.
Coilovers give the B8 S5 full ride-height adjustability, letting you dial in exactly how aggressive the stance sits. Adjustable damping options let you tune the ride for street use or stiffen it up for track days. At this level, the offset window opens up and builders commonly run wider wheels with more aggressive fitment. Most setups bolt on clean, and the platform responds well to the added adjustability without requiring major geometry correction.
Air suspension is the top-tier stance choice on the B8 S5 and one of the most popular paths in our community. A full air management kit replaces the factory struts with adjustable air bags, letting you raise the car for daily driving and drop it to the ground for shows or photos. The offset range opens up further at this level, and the most popular builds run 20-inch wheels with aggressive fitment that would rub on a static setup. Most air suspension builds bolt on clean, with most owners reporting no rubbing at ride height.
Both the 4.2-liter V8 and the supercharged 3.0-liter V6 respond well to an aftermarket cold air intake. On the V8, the payoff is a more pronounced induction note and sharper throttle response as the engine breathes more freely. On the supercharged V6, a cold air intake lets the blower pull in cooler, denser air, which sharpens response and adds a more audible intake sound under hard acceleration. It is one of the cleaner bolt-on moves on this platform and a natural first step for either engine.
A cat-back exhaust, replacing everything downstream of the catalytic converter while leaving the cat in place, is where the B8 S5 really comes alive aurally. The 4.2-liter V8 takes on a deeper, more aggressive tone that matches the car's character. The supercharged V6 gains a sportier, more purposeful note with freer flow behind the blower. Both engines benefit from reduced backpressure, and the result is a more engaging sound at every throttle position without touching emissions equipment.
Beyond intake and exhaust, the B8 S5 platform supports a solid range of bolt-on upgrades. Brake upgrades, including big brake kits with larger rotors and performance pads, are a meaningful step for drivers who push the car hard or run larger-than-stock wheels with added rotating mass. Suspension bushings and alignment components sharpen steering response and reduce flex in the chassis. Clutch kits and drivetrain components are available for the manual-equipped V8 coupe. For the supercharged V6, intercooler and piping upgrades help manage charge temperatures under sustained boost. A supporting ECU tune gets the most out of any combination of bolt-ons.
The B8 S5's European sport coupe lines give it a strong foundation for visual upgrades, and the right lighting and exterior work sharpens the stance build into something that reads intentional from every angle.
Depending on trim, the B8 S5 left the factory with halogen or projector housings, so the right lighting upgrade depends on where you are starting. Projector and halo headlight retrofits sharpen the front-end look and improve output over the factory bi-Xenon setup. Sequential turn signals and LED tail light upgrades give the rear a more modern, dynamic character. For the show and stance crowd, underglow and interior ambient lighting add presence at night and at shows, complementing a slammed or aired-out setup. Fog light upgrades round out the functional side, improving visibility in low-visibility conditions without changing the car's visual identity.
On the exterior, aero upgrades including front lip spoilers, side skirts, and rear diffusers work with the S5's factory body lines to sharpen the aggressive look the platform already hints at. Paint protection film is a practical addition for a car this clean, guarding the front end from road debris. Hood upgrades and trunk accessories are available for builders who want to push the exterior further.
Inside, the B8 S5 benefits from quality floor liners and cargo liners that protect the interior without changing its character. Seat covers and seat brackets let you run aftermarket sport seats for track use or protect the factory leather for daily driving. Interior trim accents, shift knobs, and steering wheel upgrades let you personalize the cabin to match the build's intent, whether that is a clean daily or a dedicated track car.
Good: Lowering springs on the factory struts for a clean drop and tighter wheel gap, no major geometry work needed. Better: Full coilover kit with adjustable ride height and damping, letting you dial in the stance and stiffen the chassis for spirited driving. Best: Air suspension kit with full management, adjustable from daily-height to ground-level, paired with suspension bushings and alignment components for a dialed, repeatable setup.
Good: Cold air intake for sharper throttle response and a more audible induction note on either engine. Better: Cold air intake paired with a cat-back exhaust system for improved flow, a stronger sound, and a more engaging driving character. Best: Full bolt-on combination of intake, cat-back exhaust, intercooler and piping upgrades on the supercharged V6, brake upgrades, and a supporting ECU tune to optimize the full package.
Good: Front lip spoiler, paint protection film on the leading edges, and a headlight or tail light upgrade for a sharper factory-plus look. Better: Aero package with front lip, side skirts, and rear diffuser, plus sequential LED tail lights and upgraded fog lights for a cohesive, purposeful exterior. Best: Full aero treatment, projector or halo headlight retrofit, sequential signals, underglow accent lighting, and hood or trunk upgrades for a show-ready exterior that reads intentional from every angle.
Good: Quality front and rear floor liners and a cargo liner to protect the interior for daily use. Better: Floor liners, seat covers, and interior trim accents or a shift knob upgrade to personalize the cabin. Best: Full interior package with premium floor and cargo protection, aftermarket sport seat brackets, steering wheel upgrade, and ambient lighting for a cabin that matches the build outside.
Good: 19x9 +32 with 255/35R19 on stock suspension, a clean fit that mirrors the factory coupe spec and bolts on with no rubbing for most owners. Better: 20x10 +33 with 275/30R20 on lowering springs, a popular step up that tightens the stance and fills the arch more aggressively; most bolt on clean with no rubbing reported. Best: 20x10.5 +25 with 275/30R20 on air suspension, the setup our customers reach for most at this level; most bolt on clean, though some need minor trimming, and most report no rubbing at ride height.
Good: Clean, daily-capable European sport coupe with a sharper stance than stock and no compromises on drivability. Better: Aggressive street presence with a dialed drop, a more purposeful sound, and a look that turns heads without sacrificing everyday usability. Best: Show-ready stance build with intentional fitment, a fully worked exterior, and the kind of presence that draws a crowd at any meet.
It depends on your goal. If stance and presence are the priority, suspension and wheels and tires are the natural entry point: a set of lowering springs or coilovers paired with a 19- or 20-inch wheel and tire combo transforms the look immediately. If driving character matters most, a cold air intake and cat-back exhaust are clean first moves. There is no single right order: start with the category that matters most to you and build from there.
Yes. Get pre-approved before you start building your cart so you know your budget going in. Pre-approval is fast and does not require a completed order. Once you know what you are working with, you can build out the full package, suspension, wheels and tires, performance parts, and accessories, and check out with confidence. Financing lets you do the full build now instead of piecing it together over time.
Our fitment team has real data behind every recommendation for the B8 S5, drawn from hundreds of documented customer builds across every suspension setup. If you have a question about whether a specific wheel and offset clears your suspension, what tire size pairs with a given drop, or how to sequence an install, our team can walk you through it. We cover fitment and install questions, not just part selection.
Our Gallery has real B8 S5 builds from our customers across every suspension setup, stock through air suspension, so you can see exactly what a given wheel, tire, and drop combination looks like before you buy. Every fitment recommendation is backed by real install data, not guesswork. We carry wheels and tires as matched, mounted, and balanced packages ready to bolt on, alongside suspension, performance, and exterior parts, all in one place.
