The engine bay liner was really tatty on mine when I got it, removed, and as a diesel, it was louder I think... BUT stuck Under Bonnet Sound and Heat Insulation in the centre section, and both sides of the RRC bonnet ... made it VERY much quieter.
details of UBS&HI at
Tru-Fit Carpets - Moulded Automotive Car Carpets for over 30 Years and 700 models
follow the links for sound proofing and you should find this sticky back, black fabric covered foam product.
Michael T
2011 L322 Range Rover 4.4 TDV8 Vogue
Aussie '88 RR Tdi300 (+lpg), Auto (RIP ... now body removed after A pillar, chassis extension to 130 & fire tender tray.)
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