I honestly don't know... it could mean the highly tuned engine needs extra air to cool down, remember Mansory is pulling 1250 hp from the 6.5 Liter V12 unit by using motorsport spec units for the pistons, connection rods, bearings, crankshaft, cranks and cylinder head... add a Mansory
developed pair of turbochargers and a completely custom made exhaust system from the manifolds right up to the stainless steel exhaust pipes and the result is truly mindboggling.
Equipped with a
pair of sequential
turbochargers, the SD4 promises pretty robust performance,
developing 237bhp and — more appreciably — a 367 lb ft slug
of torque from 1500rpm.