Add to Cart 2004-2005 BMW 525i 2.5L Front Manifold catalytic converter 503007-1 Engine: L6-2.5L Location: Front / BANK 1 Warranty: 5-year/50,000-mile limited warranty BMW DIRECT FIT CATALYTIC CONVERTER: Premium Quality Materials and Construction. Higher Loaded substrates for today's demanding applications, Designed for aftermarket OBDII requirements in 48 states and CANADA. 100% EPA Approved O.E.-Style Precision... (2) MSRP: $350.00 $185.95 Add to Cart Add to Wish List Add to My Wish List Create New Wish List Compare