Picking the right RSQ8 listing
Most RSQ8 parts are listed twice, once for cars with an OPF/GPF and once for non-OPF cars, so confirm which you have first. Filtered cars choose between a filter-back, which keeps the filter, and a front pipe-back. Non-OPF cars choose between a cat-back and a front pipe-back. Resonated versions are quieter with less motorway drone; non-resonated versions let the V8 speak up.
RSQ8 downpipes and road use
Sports cat and de-cat downpipes are offered for both versions. The sports cat downpipes keep a catalyst. The de-cat downpipes remove it and are for off-road and competition use only, so they will fail an MOT emissions test. Most owners will need an ECU remap with either. Browse manifolds, de-cats and sports cats for more.
RSQ8 valve and suspension control
Active Valve Control and Active Suspension Control each have separate OPF/GPF and non-OPF listings; see our electronics range for related add-ons. The SQ8 and the C8 RS6 use a 4.0 V8 Bi-Turbo too and have similar Milltek ranges.
Buying RSQ8 parts from Milltek Exhaust Shop
Start with the reg lookup at the top of the page to narrow the list to your RSQ8. Free UK delivery and worldwide shipping are standard, Klarna and PayPal are accepted, and our Stoke-on-Trent workshop offers fitting.