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Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Fits 1963-67 Chevrolet Corvette Straight Through Muffler-Stainless SM11266-JHPRStreet Max, Stainless Straight Through Performance Muffler, 4. 0" x 9. 0" x 18. 0" Oval Body, Moderate Tone, 16 Gauge 409 Grade Stainless Steel, Satin Finish, 2. 5" Offset In, 2. 5" Offset 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 Moderate Tone Specs: Body Length (IN) 18
Street Max, Stainless Straight-Through Performance Muffler, 4.0" x 9.0" x 18.0" Oval Body, Moderate Tone, 16-Gauge 409-Grade Stainless Steel, Satin Finish, 2.5" Offset In, 2.5" Offset 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
- Moderate Tone
Specs:
| Body Length (IN) | 18 |
|---|---|
| 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 | Offset |
| Outlet Diameter (IN) | 2.5 |
| Overall Length (IN) | 24 |
| 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 |
|---|---|---|---|
| 1963-1967 | Chevrolet | Corvette | |
| 1964-2014 | Ford | Mustang | |
| 1973-1986 | Chevrolet | C10 Suburban | |
| 1973-1986 | Chevrolet | K10 Suburban | |
| 1973-1974 | GMC | K15/K1500 Pickup | |
| 1974-1978 | Ford | Mustang II | |
| 1975-1980 | Chevrolet | C10 | |
| 1975-1980 | Chevrolet | C20 | |
| 1975-1979 | Chevrolet | K20 | |
| 1975-2010 | Ford | F-150 | |
| 1975-1998 | Ford | F-250 | |
| 1975-1998 | Ford | F-350 | |
| 1975-1978 | GMC | K15 Suburban | |
| 1975-1978 | GMC | K15 | |
| 1976-1983 | Jeep | CJ5 | |
| 1976-1986 | Jeep | CJ7 | |
| 1977-1996 | Chevrolet | Caprice | |
| 1977-1986 | Chevrolet | K30 | |
| 1977-1979 | Chevrolet | K5 Blazer | |
| 1979 | Chevrolet | K10 | |
| 1979-1995 | GMC | C1500 | |
| 1979-2000 | GMC | C3500 | |
| 1979 | GMC | K1500 Suburban | |
| 1979-1995 | GMC | K1500 | |
| 1979-1995 | GMC | K2500 | |
| 1979-1995 | GMC | K3500 | |
| 1988-1995 | Chevrolet | C1500 | |
| 1988-1995 | Chevrolet | K1500 | |
| 1995-2000 | GMC | C3500HD | |
| 1997-2011 | Dodge | Dakota | |
| 1997-2002 | Ford | Expedition | |
| 1997 | Ford | F-250 HD | |
| 1999-2010 | Ford | F-250 Super Duty | |
| 1999-2010 | Ford | F-350 Super Duty | |
| 2002-2005 | Cadillac | Escalade | |
| 2004 | Ford | F-150 Heritage | |
| 2005-2022 | Chrysler | 300 | |
| 2005-2008 | Dodge | Magnum | |
| 2006-2022 | Dodge | Charger | |
| 2006-2010 | Ford | Explorer | |
| 2009-2022 | Dodge | Challenger | |
| 2014-2017 | Jeep | Cherokee |
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
4.7 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
I would highly recommend this product.
Number of Items: 1
I’m going to purchase this product again. I drive a lot and it’s perfect for me and yes, it does work in my opinion. I noticed a difference right away after the oil change. My vehicle was much smoother.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Great for Subaru oil consumption
Number of Items: 1, Number of Items: 1
Got this for my 2015 Subaru outback for its notorious oil consumption. It seems to be doing the trick causing less oil consumption after 1k miles noticable difference for sure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
★★★★★ 5
great for any engin
Size: 12 fl. oz. (Pack of 1)
Have been looking for this for a long time.i always used when i had a ,chevy 327,300.3speed.the engin always run great and when we changed the value cover gaskests the inside look like brand new,and clean.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Great product
Size: 12 fl. oz. (Pack of 1)
Noticeable difference in the first 50 miles .
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Great product!
Size: 12 fl. oz. (Pack of 1)
Would recommend pouring oil into container after pouring in and shaking it up, great additive recommended by some old folks but I would have to say it’s just thick as molasses. Used in 2016 FORD F150 5.0 V8
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Reviewed in the United States on April 3, 2025