yesterday, i had my new rear muffler fitted.
it is a Mille Miglia, which is a brand used by several fellow australian alfisti. hence my decision to fit one too. despite their italian-sounding name, and catering for italian cars including Alfa, Ferrari and Lamborghini, they are built in sydney, australia, at the HiTech Muffler factory.
i weighed up my options between this MM vs Ragazzon vs CSC vs other. only the MM was readily available here - all others required buying from overseas and importing. the Ragazzon was my other favoured option but hey, i went 'australian made'! the MM was about the same cost as a Ragazzon imported (minus fitment costs) - roughly AUS$1000~1100.
overall, i'm very pleased. it looks great. the tips are 2x 75mm diameter, with a nice sharp edge (i don't like the 'rolled' edges on some tips including the factory ones); they are also slightly staggered, and end on a slight angle. the 'can' has a nice high-polished finish and about 2/3 the size of the original, and everything is stainless steel from what i can gather.
weight of the original is 11.5kg. weight of the MM is 8.6. so quite a significant weight saving.
considerably louder than the original. though at idle, and cruising (ie: not accelerating), it is as quiet as normal from inside the cabin
- from the outside, it seems to idle with a menacing burble. 'under load', it has a nice deep growly, guttural sound. i can't really hear a higher pitched lairy 'mechanical zing' to it though - maybe from the outside, but not really from inside.
at 2000rpm, it is a little drony and annoying under load. most noticable if i'm lightly accelerating, say in 5th/6th gear. would give me a headache if i kept it there, so the answer to that is to push through that rpm hard and fast!
cruising at 2000rpm is no issue though.
being 'brand new', it is likely to change its tone slightly over time . so we shall see, though i doubt it will change dramatically. i don't think i'll upgrade the centre pipe to do away with the centre muffler/resonator; i'd be worried it would be worse in terms of drone, and i don't want it any louder.
anyway, it's a great addition that i would recommend to anyone wanting a rear muffler. so, onto some pics, and couple ****-weak vids!
original exhaust (11.5kg)
new Mille Miglia exhaust (8.6kg)
YouTube - Alfa Romeo 3.2L GT Mille Miglia exhaust 1
YouTube - Alfa Romeo 3.2L GT Mille Miglia exhaust 2