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    Is an aftermarket intercooler really worth it for towing??

    I used to build early turbo Porsche motors (air cooled), including EFI conversions and designing intercoolers to match turbos for each HP application. HP/TQ numbers were 525/520 up to 675/640 on 3.3L up to 3.6L, 2500 lb cars. With this in mind, I am trying to decide whether it really makes...
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