Article tag: catback Article author: By Wholesale Helper Support Team Article published at: September 16, 2026 Article comments count: 0 BMW G8X Valved Catback Fitment & Setup Guide: G80 M3 - G82 M4 - G87 M2 Planning a valved exhaust for your BMW G8X? Use this guide to review chassis fitment, valve-control options, installation planning, and compatible IRL exhaust combinations.Read article