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IMHO, and only from reading here and also witnessing mates trials & tribulations on their TMIC’s versus FMIC’s.
Top Mount IC’s unfortunately do suffer from heat soak when in slow traffic and or crawling up off-road tracks steadily.
They also do unfortunately completely take away all engine bay positive pressure when crossing rivers or plunging through deep bogholes flooding engine bays with water/sludge……a giant air top exhaust/vent.
Front Mount IC’s do keep OEM bonnets untouched but do unfortunately require very serious custom installation consideration of pipe work/ intake routing for abrasion etc…
FMIC’s will perform clearly proven better for Kw/Nm numbers but design of winches/a/c/spotlights and the rest need to be cleverly airflow positioned too.
Summary IMHO:
If your needs are 50kmph+ highway hauling, go a cheaper TMIC
All other scenarios, if maxxxx performance is truly wanted/needed then go FMIC
FWIW: I have NO IC
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