Choose from the widest range of finest quality stainless steel exhaust systems, manufactured to our own exacting standards by Double S Exhausts, Britain's premier stainless exhaust manufacturer. Made from 309 and 401 grade stainless steel with mirror finish silencers, each system is produced to accurate tolerances for easy DIY fitment and is supplied with a limited Lifetime Guarantee (*Non-Transferable). Sports and Standard Systems Sports systems are designed for optimum performance and improved bhp with a sporty exhaust note. Standard systems provide efficient gas flow with the distinctive MG exhaust tone. MGB & GT Big Bore System Single rear silencer system Large 2"" diameter pipe work. Single rear silencer system Single Rear Silencer. Single rear silencer system Performance Manifold. Kit Contains: 1 X BMG701 (Interpipe); 1 X BMG702 (Rear Box); 1 X BMG700 (Manifold MG700); 1 X BMG102 (Centre Hang Bracket); 1 X BMG701/2 (Interpipe)