No hassle
Live in-stock
Save over
60% retail
You have no items in your shopping cart.
June Sale: $208.80
In Stock
May ship from manufacturer
Free Shipping
Part number: 530513
Universal product
Product Details
Flowmaster 530513 50 Series Big Block Muffler 3 in. Dual Inlet/3.5 in. Offset Outlet
Products specifications
Case Length (in) 22.000 in.
Case Shape Oval
Inlet Diameter (in) 3.000 in.
Inlet Location Center
Inlet Quantity Dual
Internal Construction Chambered
Muffler Finish Aluminized
Muffler Material Steel
Outlet Diameter (in) 3.500 in.
Outlet Location Offset
Outlet Quantity Single
Outlet Style Standard, without tip
Overall Length (in) 28.000 in.
Quantity Sold individually.
Size 3.00in Dual In / 3.50in Offset Out
Thickness (in) 5.000 in.
Width (in) 12.000 in.
Body Height (inches) 5.00
Body Length (inches) 22.00
Body Width (inches) 12.00
Finish Gray
I.D 3.00
Inlet Position Dual
Material Aluminized Steel
Muffler Series 50 Series Big Block
O.D. 3.50
Outlet Position Offset
Shape Flowmaster Case
Sound Level Mild sound

The 50 series Big Block muffler is made for more than just big cubic Inch engIne applications. Its large case size with Internal tunIng chamber provides mileage and power gaIns along with maximum sound control for a quiet Interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUVs, RVs, and tow vehicles. Constructed of 16 gauge alumInized steel and fully MIG welded for maximum durability.

  • Improved horsepower or torque and potential mileage improvement
  • Recommended for SUV, trucks, motorhomes and tow vehicles
  • Reduced Interior resonance
  • Stock to mild exterior exhaust tone
Add your review
Fast service and shipping, Plus the lowest price for the high performance k&n air filter
I wanted.
very fast processing received product within a few days. fair prices. will do business with again.
Excellent service, incredibly fast shipping and delivery. Would DEFINITELY do business with again.
I was hesitant to order from Autoplicity due to the perception that the price was too good to be real (and not some scam). However, I read a few reviews on the internet and decided to take a chance. Once I placed my order I was sent a tracking number and received my car parts within 2 weeks. I was happy that I got the parts I ordered and the price was really low. Simple and quick.
Cadillac Escalade
2006 Cadillac Escalade ALL / Base
2005 Cadillac Escalade ALL / Base
2004 Cadillac Escalade ALL / Base
2003 Cadillac Escalade ALL / Base
2002 Cadillac Escalade ALL / Base
Cadillac Escalade ESV
2006 Cadillac Escalade ESV Base
2005 Cadillac Escalade ESV Base
2004 Cadillac Escalade ESV Base
2003 Cadillac Escalade ESV Base
2002 Cadillac Escalade ESV Base
Cadillac Escalade EXT
2006 Cadillac Escalade EXT Base
2005 Cadillac Escalade EXT Base
2004 Cadillac Escalade EXT Base
2003 Cadillac Escalade EXT Base
2002 Cadillac Escalade EXT Base
Chevrolet Silverado 1500
2003 Chevrolet Silverado 1500 ALL / SS
Chevrolet Silverado 1500 HD
2003 Chevrolet Silverado 1500 HD ALL / Base / LS / LT
2002 Chevrolet Silverado 1500 HD ALL / Base / LS / LT
2001 Chevrolet Silverado 1500 HD ALL / Base / LS / LT
Chevrolet Silverado 2500 HD
2004 Chevrolet Silverado 2500 HD ALL / Base / LS / LT / WT
2003 Chevrolet Silverado 2500 HD ALL / Base / LS / LT
2002 Chevrolet Silverado 2500 HD ALL / Base / LS / LT
2001 Chevrolet Silverado 2500 HD ALL / Base / LS / LT
Chevrolet Suburban 1500
2008 Chevrolet Suburban 1500 LT / LTZ
2007 Chevrolet Suburban 1500 LT / LTZ
Show All Vehicle Fitments
Return Policy
Returns are easy at THMotorsports
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy