var google_tag_params = { ecomm_prodid: ['shopify_US_1481157017663_13135614476351', 'shopify_US_1481139879999_13135538159679', 'shopify_US_1481139945535_13135538225215', 'shopify_US_1481156624447_13135613362239', 'shopify_US_1481157378111_13135614967871'], ecomm_pagetype: 'category', ecomm_category: 'exhaust-system' }; /* */