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DynomaxPart #: 39442
Dynomax 39442 Exhaust System Kit
⚙️ 6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$599.46Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Ultra Flo Welded Single System
🚗Fitment: Chevrolet and GMC, Avalanche, Suburban 1500, and Yukon XL 1500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Exhaust System Kit options
Dynomax 39442 Exhaust System Kit
| Brand | Dynomax |
| Part Number | 39442 |
| Position | Ultra Flo Welded Single System |
| Tip Shape | Round |
| Pipe Diameter | 3 |
| Mounting Hardware Included | Yes |
| System Type | Cat back |
| Grade Type | Performance |
| Pipe Material | Stainless steel |
| Muffler Quantity | 1 |
| 59059 | No |
| 59845 | Polished |
| 59866 | 1 |
| 61093 | Band |
| 61126 | Angle |
| 61127 | Rolled |
| 62199 | 2 |
| Bend Type | Mandrel |
| Body Finish | Natural |
| Body Length | 24 |
| Clamp Count | 2 |
| Clamp Type | Band |
| Clamp Type | Band clamp - lap joint |
| Class | N |
| Exhaust Type | Single |
| Exit Location | Angle |
| Exit Position | Angle |
| Exit Style | Straight |
| Finish | Aluminized |
| Inlet Inside Diameter | 3.000 in. |
| Inlet Quantity | 1 |
| Kit Contents | Int pipe, muffler, tail pipe, clamps, instruction sheet |
| Kit Contents | Intermediate pipe, muffler, tail pipe, clamps |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Chevrolet | Avalanche | 5.3L | V8 | N/A | Ultra Flo Welded Single System |
| 2008 | Chevrolet | Suburban 1500 | 5.3L | V8 | N/A | Ultra Flo Welded Single System |
| 2008 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | Ultra Flo Welded Single System |
| 2007 | Chevrolet | Avalanche | 5.3L | V8 | N/A | Ultra Flo Welded Single System |
| 2007 | Chevrolet | Suburban 1500 | 5.3L | V8 | N/A | Ultra Flo Welded Single System |
| 2007 | GMC | Yukon XL 1500 | 5.3L | V8 | N/A | Ultra Flo Welded Single System |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.