oil and radiator caps

does anyone no which ones fit from other cars as i cant find any listed for a swift bit of a basic question i no but realy cant find any, these are a couple of last bits i want, going in for tuning hopfully on the 22 of the month and drags 27th should be good to see an improvement diff has definately helped looking at datalogs ive done, im doing 0mph- end of first gear in 0.8sec

i know they sell them on ebay.com or failing that i thing honda bits may fit don't take as gospel though