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Description
Fits 1959-1964 Chevrolet Impala Straight Through Muffler-Stainless SM11226-JHPRStreet Max, Stainless Straight Through Performance Muffler, 4. 0" x 9. 0" x 14. 0" Oval Body, Aggressive to Moderate Tone, 16 Gauge 409 Grade Stainless Steel, Satin Finish, 2. 5" Offset In, 2. 5" Center Out, Reversible, 3 Year Limited Warranty. Features: Straight Through Design (fully reversible) Improved Horsepower and Torque 409 Grade 16 Gauge Stainless Steel Construction High Heat Thermal Mesh Effective Drone Reduction Aggressive Moderate Tone
Street Max, Stainless Straight-Through Performance Muffler, 4.0" x 9.0" x 14.0" Oval Body, Aggressive to Moderate Tone, 16-Gauge 409-Grade Stainless Steel, Satin Finish, 2.5" Offset In, 2.5" Center Out, Reversible, 3 Year Limited Warranty.
Features:
- Straight-Through Design (fully reversible)
- Improved Horsepower and Torque
- 409-Grade 16-Gauge Stainless Steel Construction
- High-Heat Thermal Mesh
- Effective Drone Reduction
- Aggressive/Moderate Tone
Specs:
| Body Length (IN) | 14 |
|---|---|
| Body Type | Oval |
| Finish | High-Heat Thermal Mesh |
| Inlet Configuration | Offset |
| Inlet Diameter (IN) | 2.5 |
| Material | 409-Grade 16-Gauge Stainless Steel |
| Outlet Configuration | Center |
| Outlet Diameter (IN) | 2.5 |
| Overall Length (IN) | 20 |
| Prop 65 - Short Label | prop65_warning.jpg |
| Prop 65 (C, R or CR) | CR |
| Prop 65 Yes/No | Yes |
| Series | 4 inx9 in Oval |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1959-1964 | Chevrolet | Impala | |
| 1960-1970 | Ford | Fairlane | |
| 1962-1976 | Dodge | Dart | |
| 1965-1974 | Dodge | Coronet | |
| 1965-1974 | Plymouth | Satellite | |
| 1966-1974 | Dodge | Charger | |
| 1967-1971 | Plymouth | GTX | |
| 1968-1976 | Ford | Torino | |
| 1968-1974 | Plymouth | Road Runner | |
| 1970-1974 | Plymouth | Duster | |
| 1972-1976 | Ford | Gran Torino | |
| 1979-1989 | Dodge | D100 | |
| 1979-1993 | Dodge | D150 | |
| 1979-1980 | Dodge | D200 | |
| 1979-1980 | Dodge | D300 | |
| 1979-1991 | Dodge | W150 | |
| 1979-1980 | Dodge | W200 | |
| 1979-1980 | Dodge | W300 | |
| 1981-1991 | Dodge | W250 | |
| 1984-1989 | Dodge | W100 | |
| 1988-1993 | Dodge | D250 | |
| 1988-1993 | Dodge | D350 | |
| 1998-2002 | Ford | Crown Victoria | |
| 2003-2011 | Cadillac | CTS | |
| 2005-2011 | Cadillac | STS | |
| 2005-2006 | Nissan | Armada | |
| 2006-2009 | Chevrolet | Trailblazer | |
| 2004-2019 | Cadillac | CTS | V |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Cost effective
Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil
Nice, cost effective material. It stuck nicely to the door and was fairly easy to use. The grid marks on the back made it easy to cut. I would not rank it up with other materials in sound and heat isolation, but it did cut down the overall vibrations on the door panels and I did not feel heat immediately from the floor area as i did with bare metal. If you are working with a budget and want modest improvement, this material will work well over most stock materials.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Good value and sticks well
Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil, Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil
For $14 for 8.7 square feet, this was more than enough to cover the important parts of the trunk of my 944. You DON'T need a roller to apply this, just strong hands and a well prepped surface. I vacuumed, lightly washed, then used 90% alcohol to clean the surface before applying. I could have used more and covered every inch, but there is diminishing returns in doing so (especially on a budget, or with a lower wattage sound system in my opinion). If this stuck as well as it did for me in a 45° garage, then it should stick just fine for you too. I will say, it is a little cheap feeling, but for the price I can't complain. There is an audible difference when knocking on the panels this material is applied to. I'm not a professional though, and if you're an audiophile, there are better options (but prepare to empty your wallet). Not sure I would do an entire vehicle with this material, but it is a great supplement.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Easy to work with
Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil
Excellent product. Strong adhesive and foam cover with silver aluminum barrier. Easy to handle and install. Cuts with razor type cutter without problems. Has inch measurements on paper side to help with fitting. Good value for cost.
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Reviewed in the United States on May 27, 2026
★★★★★ 4
Good value for my application
Style: 37.1 sqft（34 pcs）, Material Type: Aluminum 197 mil
I wanted this product for heat and sound installation. Worked well for my application of insulating Jeep floorboards. Easy to work with. Good adhesion. I may have went for a little thicker material. But it's better than only carpet. That's what Jeeps have so it worked great for me. Good value for the money, I like the size of the squares since I needed to do a lot of trimming anyway.
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Reviewed in the United States on October 26, 2025
★★★★★ 5
Good value
Style: 16.3 sqft（15 pcs）, Material Type: Aluminum 197 mil
Works well in installation but recommend an aluminum foil tape to go over all seams. Seems to work well as a heat insulator. Not sure about durability UNTILL we get some years under our belts.
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Reviewed in the United States on June 8, 2026