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That’s a rubber reducer. I tried looking on there site and couldn’t find it.
Its a cheap T4 size one off Amazon, well see how it holds up:
Thanks! I ordered one. The bottom of mine had some cracks and might be letting unfiltered air in.Donaldson P112611 - RÉDUCTEUR, CAOUTCHOUC
Acheter Donaldson P112611. Référencement croisé RÉDUCTEUR, CAOUTCHOUC en ligne pour un ajustement parfait.
I got my through applied.com distributor for $42.
I just took it for a spin around the neighborhood last night to make sure everything was hooked up right, some time this week I'll take it on the highway to check it out for real. Runs smooth and actually seems to idle a bit quieter according to my phone's dB meter. Not sure why that is, the turbo blanket shouldn't make much difference at idle but I'm happy with any reduction.
Probably the newer map has more refined injection timing. Injection timing and number of injection events per combustion stroke (yes there can be more than one) all plays a HUGE part in the noise of the engine at idle. Had a rep from Isuzu that showed us how he could dramatically change the engine sound and make it significantly quieter with their stratified injection that used multiple injection events at idle to reduce engine noise significantly. So much so that with it on vs. off made the difference of being able to talk to someone near the machine or requiring ear-pro.
