Is that a piece of black drain pipe covering the filter? They make really nice billet aluminum covers that supposedly also act as a heat sink to cool the oil. $20 at Speedway Motors.
$19.99 Universal Fit, 3.625" Inside Diameter, 6.000" Depth
Inside Diameter:3.625"/Outside Diameter:4.000"/Depth:6.000"/Overall Length:6.375"