Motorsport Growth
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Stage 4 Tuning · 2025 · Shopify / Lifecycle

Headless Storefront. Real Horsepower.

+31%

Owned-channel rev

+186%

Mobile CVR

+1.6s

TTI mobile

+34%

AOV

Stage 4 Tuning hero

01 / PROBLEM

A 40k-SKU Turn14 reseller stuck on a generic theme. PDPs returned the wrong fitments. The cart abandoned at 81%. Email was a 3% revenue afterthought.

02 / APPROACH

Headless Shopify on Next.js. Year-make-model gating in the URL. Real-time stock surfaced as a confidence signal. Klaviyo rebuilt around the aftermarket buying cycle — research-heavy, fitment-anxious, repeat-window long.

03 / RESULT

Mobile checkout time halved. Repeat-purchase window tightened from 47 days to 22. Owned channels now a third of monthly revenue.

Stage 4 Tuning gallery 1
Stage 4 Tuning gallery 2
Stage 4 Tuning gallery 3