The Land Rover Discovery has a (no bull****) 3gal WASHER FLUID RESEVOIR. Just got a ARB bumper off one at my wreckers for mine, woulnt be too hard to mount where my LR air filter box is now, (intake side would be reversed with OM603 swap.)

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Lotus 7 replica-20valve 4AGE
06' 500R Ninja Naked/Café/Custom
86' 300 SDL (Donor)
98' Discovery 50th anniversary (Recipient of transplant)