FATZ, automotive accessories B2C, mid-engagement Woo → Shopify migration.
FATZ Fabrication makes automotive accessories for the Australian aftermarket, including stainless steel snorkels for four wheel drives. Buyers shop by vehicle, so a product only matters to them if it fits their make, model and variant.
Paid media and a platform migration for FATZ.
The store ran on WooCommerce, with a catalogue organised around vehicle fitment and accessory compatibility rather than as a flat product list. 121 ran the paid programme against that catalogue: Meta prospecting and retargeting, and Google Ads including Shopping and display, with the product feed kept aligned to the fitment data so shopping ads showed parts against the vehicles they suit.
Partway through the engagement the store was migrated from WooCommerce to Shopify. The migration covered catalogue structure, the product feed and the tracking the ad accounts were being optimised against. Advertising kept running through the change.
The marketing stack stayed the same across the move: Meta, Google Shopping, Klaviyo, GA4 and Google Tag Manager, with the storefront work shifting to Shopify once the catalogue landed there.
Conversions rose 330 per cent, from 47 to 202.
Automotive aftermarket on WooCommerce wins on catalogue depth.
Automotive accessories brands often outgrow Shopify's catalogue model, they need vehicle-fitment taxonomy depth, accessory-compatibility logic, mid-market wholesale layer, and mid-market customisation that's harder on Shopify. WooCommerce wins for that mid-market band.
The marketing stack stays consistent, Meta + Google Shopping + Klaviyo + GA4 + GTM, but the storefront discipline shifts to WooCommerce-specific performance + catalogue + plugin hygiene. The hosting tier matters; the plugin audit matters; the catalogue taxonomy matters.
FATZ ran the automotive-aftermarket WooCommerce programme, catalogue depth, Meta paid social, Google Shopping, performance-engineered build, mid-engagement WooCommerce → Shopify migration.
Fatz Fabrication, the 4x4 stainless snorkel maker we run paid media for.




What did 121 Group do for FATZ?
121 Group ran Google Ads, paid social and email marketing for FATZ. The site runs on Shopify.
What industry is this automotive case study in?
FATZ operates in automotive. 121 Group works across nine verticals, with case studies published for each.
Could 121 Group run a programme like this for us?
Yes. A senior strategist can talk through how we approach automotive marketing, what a comparable programme would cover and how it would be measured, on a thirty minute call.
Automotive accessories B2C brand on WooCommerce?
Thirty-minute call. We'll look at your catalogue architecture, your Google Shopping feed, your Meta + Klaviyo stack, and your WooCommerce performance posture.