Flowmaster : 530504 : Inlet : 3.00" dual - Outlet : 2.50" dual : 50 Series Big Block Muffler The 50 series "Big Block" muffler is our largest muffler for tow vehicles, trucks, large Sport utilities and Recreational Vehicles. This muffler is made for more than just big cubic inch engine applications. It has a very large H-Chamber to reduce interior resonance in large cab areas of vehicles and enough case volume to handle engines under heavy loads. Constructed of 16 gauge aluminized steel and fully mig-welded for maximum durability. Inlet : 3.00" dual Outlet : 2.50" dualOver size freight item. $10 will be added at time of shipment 530504$193.99 Don't see what you want? .......... Need help? Or, IF THERE IS NO ORDER BUTTON AVAILABLE on the part you want to buy, please call us TOLL FREE at 1-888-6 GO FAST(1-888-646-3278) Monday - Friday 8AM - 4:30PM Pacific Time and talk to one of our experienced Sales Agents. Some parts may not be legal for sale or use in California and other states on any polution controlled motor vehicles. Check your local laws for use. Copyright © GoFastParts.com all rights reserved. No part of this site may be reproduced without prior written consent.