Description
The 70 series utilizes Flowmaster’s patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV’s, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Resources
Installation Instructions
Resources
Installation Instructions
Specifications:
| Automotive Item Grade | High Performance |
| Body Height | 5.000 in. |
| Body Length | 22.000 in. |
| Body Width | 10.000 in. |
| Color | Black |
| Description_ASC | Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations |
| Description_ASM | Universal Muffler – Not a direct fit. Some adaptation required. Adapters needed for OEM Exhaust. |
| Description_DEF | Exhaust Muffler |
| Description_DES | 70 Series™ Big Block II Muffler |
| Description_EXT | 70 Series™ Big Block II Muffler; 2.25 in. Dual Inlet/3 in. Center Outlet; Case Dimensions 5 in. x 10 in. x 22 in.; 28 in. Overall Length; Aluminized Steel; |
| Description_FAB | 3 Year Limited Warranty |
| Description_FAB | Durable Fully Welded 16ga Aluminized Steel |
| Description_FAB | Improved HP/TQ and Potential Mileage Improvement |
| Description_FAB | Minimal Interior Resonance |
| Description_FAB | Premium Flowmaster Quality |
| Description_FAB | Race Proven Patented Delta Flow® Technology |
| Description_FAB | Recommended For SUV/Trucks/Motorhomes/Tow Vehicles |
| Description_FAB | Stock to Mild Exterior Exhaust Tone |
| Description_INV | 2.25 (D)IN/3 (C)OUT 70 SERIES BBII |
| Description_KEY | Chambered; Exhaust; Performance muffler; muffler; flowmaster; race muffler; universal muffler; magnaflow; borla; gibson; stainless exhaust; stainless muffler; tuned muffler; sport muffler; tuner; tuned exhaust; exhaust upgrade; performance upgrade |
| Description_MKT | The 70 series utilizes Flowmaster’s patented Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV’s, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. |
| Description_MKT | The 70 series utilizes Flowmasters Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUVs, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. |
| Description_SHO | Muffler |
| Fitment | Universal |
| height | 5.6 |
| Inlet Connection Type | Pipe |
| Inlet Diameter | 2.250 in. |
| Inlet Inside Diameter | 2.250 in. |
| Inlet Outside Diameter | 2.250 in. |
| Inlet Position | Dual |
| Inlet Type | Dual |
| length | 28.7 |
| LTL | N |
| Main Piping Diameter | 2.250 in. |
| Material | Aluminized Steel |
| Mount Type | Uses New Hangers (Not Included) |
| Muffler Series | 70 Series Big Block |
| Muffler Type | Reflection |
| Outlet Connection Type | Pipe |
| Outlet Diameter | 3.000 in. |
| Outlet Outside Diameter | 3.000 in. |
| Outlet Position | Center |
| Outlet Type | Single Center Outlet |
| Overall Length | 28.000 in. |
| Shape | Oval |
| Sound Level | Mild |
| Tip Quantity | 0 |
| Title | Flowmaster 524703 70 Series Muffler – 2.25 Dual In / 3.00 Center Out – Mild Sound |
| WARNING CA Proposition 65 | No |
| weight | 23.16 |
| width | 10.6 |
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