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Old 12-04-20, 10:01 AM
PEU186F PEU186F is offline
Join Date: Apr 2015
Posts: 94

Having done three quarters of an alpine tour, including the Stelvio, with a one broken manifold and the other blowing I am hardly qualified to judge the comparison. By the time we left her at SLJ the broken manifold was completely detached so the noise was horrendous. But I can confirm that I am entirely happy with the free flow manifolds, they don't seem noisy to me, honest.

The original 410 front exhaust hangings were far too rigid, engine torque then making the manifolds extremely vulnerable as most of the torque ended up being taken by the manifolds. The much improved 411 system is now adopted.

Another piece of advice: the Stelvio, a 410 and a stiff neck don't mix. There is also only loads of tatty stalls and dirty snow at the top. As for the bloody cyclists!!! They CYCLE up it. I was so discombobulated I could only drink a bottle of cold water at the top. See photo in my earlier posting 411 front disc brakes.

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