The stainless steel exhaust range for the MG Midget is manufactured by Double S Exhausts in 309 and 401 grade stainless steel with mirror polished silencers, produced to accurate tolerances for straightforward DIY fitment. Every system carries the Double S lifetime guarantee against corrosion, a meaningful long-term commitment when set against a mild steel system in the British climate, which typically reaches end of service within a few years as corrosion begins to compromise the joints and silencer from the inside out.
Standard & Sports Specifications
Systems are available in standard and sports specifications for both the 1275cc A-series and the 1500cc Midget. Standard systems provide efficient gas flow with the traditional MG exhaust note, a subdued, purposeful burble that is part of the Midget's character, while sports systems use larger-bore pipework and less restrictive silencer internals to improve exhaust gas flow, producing a sportier, more prominent note and a useful improvement in engine response. The choice comes down to the owner's preference between original character and a more assertive tone, both specifications carrying the same lifetime guarantee and DIY-friendly fitment.
System Layout by Production Era
The Midget exhaust layout changed across production, and the correct system must match the car. Pre-1970 cars use a single-box system, and from 1970 onwards the layout changed to a twin-box arrangement with a crossbox, used through to the end of A-series production in 1974, while the 1500cc cars produced from late 1974 onwards used a further revised arrangement to suit the Triumph-derived 1500 engine. Within these layouts, twin-box systems are also available with twin tail pipes for owners seeking a more distinctive rear-end appearance over the single tail pipe original, so identifying which layout applies to the car is the first step when ordering, as fitting the wrong system will result in mounting and clearance issues that cannot be resolved without modification.
Performance Manifolds & the Double S Guarantee
Stainless steel tubular performance manifolds are available separately or as part of a combined manifold-and-system package, the tubular manifold providing improved gas extraction over the original cast iron item, with measurable benefit on standard engines and a more pronounced improvement on tuned engines with camshaft, cylinder head, or carburettor upgrades, so pairing a stainless manifold with a stainless system gives a complete exhaust solution addressing both gas flow and long-term corrosion resistance. MGOC Spares has worked in partnership with Double S Exhausts for over forty years, and the combination of premium British stainless steel, expert hand fabrication, and decades of refinement means these systems are built to outlast the cars they are fitted to, with MGOC Spares standing behind every system supplied for as long as that exhaust is on the car.