Silence exhaust drone and keep back-pressure in check with the AP Exhaust Direct-Fit Muffler 700489 (MSL Maximum). It drops in as a direct-fit replacement for the 2007-2013 Chevrolet Silverado 1500 and GMC Sierra 1500 in V8-4.8L and V8-5.3L, plus the V6-4.3L (Silverado 1500 2007-2012, Sierra 1500 2007-2013). Engineered to perform like OE for sound control and back-pressure, it's built for the professional installer.
This is a Standard Replacement grade muffler; no heat shield is attached. Made in the United States. Quantity per application is one. If a rusted-through or excessively loud muffler is the cause of your exhaust noise, this replaces it.
What vehicles does the 700489 muffler fit?
It's a direct-fit replacement for the 2007-2013 Chevrolet Silverado 1500 and GMC Sierra 1500 (V8-4.8L, V8-5.3L) and the V6-4.3L (Silverado 1500 2007-2012, Sierra 1500 2007-2013). See the Buyer's Guide tab.
What is the muffler made of?
The body is constructed from 100% aluminized steel, which helps resist corrosion. It's built for the professional installer as a Standard Replacement grade unit.
What are the inlet and outlet sizes?
It has a single inlet with a 3.000" inside diameter and a single pipe-type outlet with a 2.75" inside diameter. Thick expandable necks allow for easy sizing during installation.
How loud is this muffler?
It uses a baffled design with an OE-comparable sound level and is engineered to perform like OE for sound control and back-pressure. It is not tunable.
Does it include a heat shield?
No, this muffler does not have a heat shield attached. Consult the vehicle service information for the correct installation hardware and clamps.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
