If you want a terrifying sporty sound, and a presence that makes everyone turn to you… The Backfire device is your choice without thinking A strong and realistic explosion sound that makes your car noticeable everywhere 🚗 Compatible with most cars (except diesel and carburetor) Quick installation without programming or complexity Safe and tested by more than 1400 users 🔧 Supports all types of outlets (1 - 2 - 4) 📈 Works with RPM opening when needed for some cars 🕒 4 months warranty for peace of mind and complete confidence Available colors: blue / green / red Note before installation📍 Remove catalytic converters if present Some cars need RPM lift to activate the backfire at full power Available with Tabby and Tamara