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2003 CADILLAC Exhaust
Showing In Stock Items. Show All 65 Items.
Hedman Street Headers
For the price, no other part can give you the horsepower and fuel economy improvements of Hedman headers. They make Hedman Street headers so well that they guarantee them to be free from defects--including cracks in the tubes and welds--for the life of the headers. Hedman Street headers are available uncoated or in Black Maxx or their polished HTC thermal ceramic coated finishes and, as an added bonus, they also come with all necessary gaskets and mounting hardware. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts, and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom-altered parts, then it is the installer's responsibility to verify fitment. Special warning regarding Hedman painted headers only. The paint on these headers is not designed as a final finish; it is designed to protect the headers after the manufacturing process and during shipping. This paint will not withstand the high heat associated with engine break-in, nor will it withstand the heat cycles associated with any type of driving. It is recommended that this protective coating be stripped, and a high heat paint or coating designed for use on headers be applied.
( 2502 )
$469.99
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$734.99
JBA Performance Exhaust Cat4ward Headers
Increase your horsepower and torque with JBA Cat4ward headers! They are designed with 3/8 in. thick laser-cut flanges, mandrel-bent primary tubes, and feature JBA's patented Firecone merge collectors. They're available in either steel or 409 stainless steel and are offered in a chrome plated or high-temperature silver ceramic finish for most applications. JBA includes premium-quality mounting hardware and instructions for the installation and, unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This would include components such as cylinder heads, chassis, steering, motor mounts, body mounts, bushings, etc. If aftermarket components, parts from other applications, or custom-altered parts are used on your vehicle, it is the installer's responsibility to verify fitment.
( 485 )
$663.46
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$896.62
MagnaFlow Direct-Fit Catalytic Converters
MagnaFlow direct-fit catalytic converters are designed for easy bolt-on installation for the professional installer. Welding, cutting, and tube-bending equipment are not required. These cats feature a ribbed body that minimizes expansion and distortion when the converters heat up. The ribs form a channel that protects the cushioning mat from direct exposure to exhaust gases, and they hold the ceramic catalyst in proper alignment. MagnaFlow converters use a monolithic honeycomb catalyst; the ceramic coating is designed for maximum flow and surface area, and the coating method is strictly controlled to maintain exact specifications. Improper coating could result in flow restrictions or an emissions test failure. These converters are designed to exact OE specifications and are available for the most popular vehicle makes and models.
( 424 )
$485.77
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$1,566.00
Kooks Headers Race Long Tube Headers
Kooks Headers race long tube headers will deliver high performance to your racer. Their full-length race headers are built from T-304 stainless steel and are available in several primary tube and collector diameters to match your application needs. Optimize scavenging and increase power with top-quality Kooks race long tube headers.
( 66 )
$1,192.45
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$1,380.06
Walker Heavy-Duty U-Bolt Clamps
Got an exhaust job? Finish it like a pro with Walker U-bolt clamps. They are manufactured from premium steel for greater strength and durability. They are offered in standard and flat strap styles as well as heavy-duty with or without welded saddles. No matter which style of Walker U-bolt clamps you need, they are all designed for one purpose--to clamp your exhaust together with leak-free performance!
( 101 )
$2.99
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$4.99
MagnaFlow Universal Catalytic Converters
MagnaFlow universal catalytic converters by Car Sound form the basic building blocks for many applications. The main benefit of universal catalytic converters is that one unit may cover a wide variety of vehicle makes and models. Installing universal converters often requires the use of welding, cutting, and tube-bending equipment that is readily available to most professional installers. They are extremely well made, with features such as: * A ribbed body that minimizes expansion and distortion when the converter heats up. They form a channel that protects the cushioning mat from direct exposure to exhaust gasses, and hold the ceramic catalyst in proper alignment. * A 1/2 in. lap joint where the necks meet the body. The neck does not extend into the converter body, where it could hamper exhaust flow. * Manufactured with separate dies on different sized inlets. Putting larger neck sizes on smaller bodies would reduce the flow of the converter and the quality of the product. * A monolithic honeycomb catalyst. The ceramic is designed for maximum flow and surface area. The coating method is strictly controlled to maintain exact specifications. * Seam-welded close to the converter body for a strong, tight bond. Welding along the edge could allow the converter to expand like the folds in an accordion, allowing the catalyst to move around. * Heavier-gauge stainless steel, tip-to-tip. They do not use inferior mixed weights and materials. * An aluminized or stainless OEM-style ribbed heat shield that creates a rigid wall of protection against heat and adds to the structural stability of the converter.
( 190 )
$120.03
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$178.00
BD Diesel Exhaust Manifolds
These BD Diesel exhaust manifolds help you maximize your engines true potential. Your stock manifolds can require extensive cleaning and machining to be recovered from warping and distortion. These heavy-walled manifolds are coated to resist corrosion, with some models even predrilled for pyrometer probes. BD Diesel exhaust manifolds are great preventative upgrades whenever you're doing other engine work.
( 57 )
$593.95
Gibson Headers
Gibson headers are performance-tuned and engine-matched to unleash your vehicle's full potential. These headers are well-suited for lowered or raised pickups and tow vehicles—because the performance gains are engineered to come in at low and midrange rpm highway speeds. They feature mandrel-bent primary tubing for increased flow, and they bolt on quickly and easily. Installing Gibson headers will give you increased horsepower and response and a cooler-running engine. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment. Gibson headers are available in a variety of sizes, configurations, materials, and finishes. Order the model recommended for your vehicle.
( 175 )
$861.99
Flowmaster 50 Series Big Block Mufflers
Flowmaster 50 series Big Block mufflers have proven to not only significantly improve acceleration and towing power, but to simultaneously increase fuel economy as well. Because of their efficiency, underhood temperatures on trucks and motor homes can be reduced as much as 200 degrees F--helping to lengthen the service life of other engine components. These mufflers are designed and sized for larger gas and diesel engines typically used in towing vehicles and RVs. So, for more comfortable cruising, Flowmaster tuned them for reduced exterior exhaust sound and lower levels of interior resonance.
( 35 )
$306.95
BBK CNC Series Performance Headers
BBK CNC Series performance headers are built tough enough to handle the stresses of day-to-day driving or off-roading. These exhaust performance upgrades feature CNC mandrel-bent heavy-gauge tubing and laser-cut flanges that ensure long life and they include gaskets and installation hardware. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.
( 82 )
$499.99
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$569.99
Dorman Exhaust Manifolds
Dorman exhaust manifolds offer a reliable, direct-fit installation for your vehicle. Manufactured from high-quality materials, they provide the perfect replacements for your worn-out factory piece. Dorman lends a hand in maintaining the exhaust manifold on your daily driver by providing the right fit at the right price--no longer are these "dealer only" parts. Get what you need--think Dorman for your replacement exhaust manifolds.
( 521 )
$128.99
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$180.99
ACDelco Spark Plug Heat Shields
Increase the efficiency of your ignition system with ACDelco spark plug heat shields. They offer maximum protection from conductive and radiant heat, providing strain relief and vibration resistance. The boot protectors are GM-recommended OE replacement parts, compatible with a wide range of makes and models. These steel snap-on accessories prevent lasting damage to your spark plug wires.
( 6 )
$7.99
Walker Replacement Exhaust Insulators
Walker insulators are high-quality replacements made to work seamlessly with Walker aftermarket replacement parts. These exhaust insulators are manufactured from premium materials and are available in various applications.
( 74 )
$7.99
Summit Racing™ Spark Plug Boot Heat Shields
Keep your plug wires properly protected from extreme underhood heat with Summit Racing™ spark plug boot heat shields. Our plug wire boot shields are inexpensive, extra protection from damaging heat-generating sources. Protect your plug wire boots and increase their lifetime. They offer an easy, snap-on installation.
( 6 )
$31.99
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$33.99
Summit Bucks
Dynomax Ultra Flo Welded Mufflers
Dynomax Ultra Flo welded mufflers feature a straight-through design for unrestricted exhaust flow and reduces backpressure. They have a 100 percent welded design for maximum durability and stainless steel construction for lasting durability and feature CRF Technology that absorbs unwanted interior resonance, while maintaining a deep performance tone. Most of Dynomax Ultra Flow welded muffler models are universal; simply choose the style, inlet/outlet diameters and location needed for your vehicle.
( 196 )
$139.99
Summit Bucks
Dynomax Exhaust Tips
Bolt on the custom look of Dynomax exhaust tips. Available in a variety of inlet/outlet sizes and overall lengths, these single- and double-wall tips are crafted from high-grade 304 stainless steel for durability. They feature a clamp-on design, a mirror-polished finished, and the embossed Dynomax logo. Add performance and aesthetics to your ride with exhaust tips from Dynomax.
( 118 )
$50.99
Dorman Exhaust Manifold Mounting Hardware
Dorman exhaust manifold mounting hardware is designed to replace broken, stripped, or corroded stock fasteners. The studs, bolts, and nuts are manufactured from quality materials and offered in a variety of finishes. Dozens of options are available; choose the lengths and thread sizes needed for your specific vehicle application. Pieces are sold individually, in pairs, or larger quantity sets. A secure exhaust manifold begins with Dorman mounting hardware.
( 290 )
$8.99
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$16.99
Summit Bucks
Dynomax Ultra Flo Welded Exhaust Systems
Dynomax Ultra Flo welded exhaust systems are designed to optimize the power potential of your vehicle. Features include a welded Ultra Flo muffler, aluminized mandrel-bent tubing for increased flow, OEM mounting and hanger locations, and all required hardware for a quick and easy installation. Plus, because the systems mount behind the catalytic converter, your vehicle will remain 50-state emissions legal! Order the model assembled for your specific application.
( 230 )
$424.99
Walker CalCat Direct-Fit Catalytic Converters
Specifically formulated for Californians, Walker CalCat direct-fit catalytic converters comply with regulations for OBD-II and pre-ODB-II vehicles. These converters have an OE-style and fit for ease of installation. The CalCats feature a stainless steel body, a heat-shielded pipe, and a structural brace for enhanced strength and durability. Get the best balance of performance and price from Walker CalCat direct-fit catalytic converters, available for a wide range of vehicle applications.
( 24 )
$594.99
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$730.99
Fel-Pro Exhaust Manifold Hardware
Fel-Pro exhaust manifold hardware is designed to replace broken, cracked, or stripped fasteners and administer sufficient clamping force to prevent exhaust leaks. The studs are machined from steel to inhibit fatigue, with a black coating to prevent corrosion. Washers are included. Order the hardware set recommended for your vehicle year/make and engine application.
Not Yet Reviewed
$34.99
Flowmaster Direct-Fit Catalytic Converters
Control your vehicle emissions with Flowmaster direct-fit catalytic converters. With designs available for hundreds of vehicles from the 1980s and up, these cats meet or exceed USEPA 49-state requirements. They feature stainless steel construction with compression-bent tubing and are ready to bolt-on. Select the replacement model and options recommended for your application.
( 108 )
$921.95
Walker Ultra Direct-Fit Catalytic Converters
Walker Ultra Direct-Fit catalytic converters fit like OE, because the company makes original equipment! Besides the perfect fit, inside the Ultra catalytic converters are ceramic substrates with high-tech washcoat and the right loading of precious metals. The outside bodies are stainless steel for long life and durability. Catalytic converters are a vital part of your vehicle's emission control system; choose the fit, quality, and performance of a Walker Ultra catalytic converter. Order the replacement model designed for your vehicle application.
( 388 )
$362.99
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$520.50
Cherry Bomb Salute Mufflers
If you're looking to get a bold, beefy, intimidating exhaust tone out of your engine, Cherry Bomb Salute mufflers will deliver! These state-of-the-art mufflers not only look stunning, but also improve exhaust flow to give a boost in horsepower and torque—for impressive performance that commands attention. Features and benefits of Cherry Bomb Salute mufflers include: * Stainless steel construction * Reversible-flow design for maximum installation flexibility * Available in round or oval muffler shape, in a wide range of sizes and configurations to suit your application needs * 100 percent welded * Straight-through perforated core * Stainless steel wool inner wrap with roving fiber * To ensure precise fit and easier installation, please check catalytic converter shape, length and inlet diameter: the latter should match your exhaust pipe diameter * Installation may require welding and/or cutting
( 114 )
$47.99
On Sale
Flowtech Shorty Headers
Flowtech shorty headers are just the ticket for those who want the best of both worlds--top performance and a clean machine. They bolt on to your OEM exhaust system, offering real horsepower gains plus increased efficiency. These headers are made from durable 16-gauge tubing; feature TIG-welded, extra-thick 3/8 in. flanges for a leak-free seal, and come complete with premium gaskets and hardware. Plus, Flowtech Shorty headers are available in high heat-resistant black paint, ceramic thermal barrier coating or natural stainless finishes for improved rust and corrosion resistance. Additional features: * Designed as a direct fit replacement for OEM exhaust manifolds * High-flow, mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity Important notes: Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Flowtech does not recommend the use of header wraps as this will void the warranty.
( 89 )
$767.95
