JEGS
Header-Back Dual 2 1/2 in. Exhaust Kit for Select 1964-1972 Buick, Chevrolet, GMC, Oldsmobile & Pontiac Models
555-30541
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Header-Back Dual 2 1/2" Exhaust Kits Without Mufflers
JEGS 555-30541 Header-Back Dual Exhaust Kit Features:
- Fits Select 1964-1972 GM A-Body Models
- Utilizes offset inlet/offset outlet (opposite) mufflers with a 13-14 in. body length, available separately
- 2 1/2 in.O.D. (outside diameter) pipe size for most street and mile race applications
- Includes pipes, clamps, hangers, and flanges to make installation easy
JEGS 555-30541 Header-Back Dual Exhaust Kit Notes:
- Due to variations in ride height and suspension setup, some cutting and welding may be required
- Requires Offset In/Offset Out, 13-14 in. Length Muffler Not Included.
JEGS 555-30541 Header-Back Dual Exhaust Kit Applications:
- 1965-1972 Buick Skylark/GS
- 1964-1972 Chevrolet Chevelle/Malibu/El Camino
- 1970-1972 Chevrolet Monte Carlo
- 1971-1972 GMC Sprint
- 1965-1972 Oldsmobile Cutlass/442/F85
- 1966-1972 Pontiac LeMans/Tempest/GTO
- 1969-1972 Pontiac Grand Prix
Do you lose horsepower with dual exhaust?
- No, dual exhaust typically enhances horsepower by improving exhaust flow.
How much does dual exhaust increase horsepower?
- Dual exhaust can provide a noticeable power boost, but the exact increase varies.
What does adding dual exhaust do?
- Adding dual exhaust enhances engine performance by optimizing exhaust gas removal.
What is considered a true dual exhaust?
- A true dual exhaust system has separate pipes for each exhaust bank, maximizing efficiency.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Specifications:
Will this fit my 1967 chev nova SS 283 factor exhausted from the stock manifold
Would this fit a 56 studebaker goldenhawk? I don't mind doing some modification. Thanks.
will this fit my 66 gto?
Will this exhaust system fit my 1971 chevy c10? It has a 5.7 motor and a th350 transmission.
Will it fit a 1970 pontiac bonneville convertible 455?
Would it fit a 69 chevy Nova? Just checking.
Hello, will this fit on a 4wd 1977 Blazer with a 5.7L?
Would this system bolt up to the stock exhaust manifolds on a Buick 300 in a Skylark or would it be easy to add flanges to do so? Other variations of this are for longtube headers, but there are little to no header options out there for the 300/340!
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.