Produktinformationen "Milltek SSXAU627 Cat-back Twin 80mm GT80 - Audi A4 2.0 TFSI S line B8 (2WD and quattro manual-only)"
Non-Resonated Quad-outlet. Requires S4 3.0T lower spoiler and detailing strip and additional hanger bracket (Part # 8K0253144M) from your local Audi dealer