BMW Z4 Exhaust | Summit Racing

Funk Motorsports Turbo Heat Shields

Funk Motorsports offers turbo heat shields for a wide range of (universal) applications, as well as vehicle-specific models for select BMW, Honda, Ford, and Subaru vehicles from 2002 and up. These turbo and/or turbo wastegate thermal blankets work to insulate the hot side and retain the heat within the exhaust gasses themselves. Hotter gasses accelerate faster, leading to them leaving the system sooner—improving spool up and throttle response. Insulating the turbo also helps to lower the amount of heat that dissipates into the engine bay and intake pipework. A cooler intake results in higher performance and more consistent power figures over time. The 4-layer shields are offered in three finishes: titanium twill, carbon fiber twill, and inside out (for turbos in contact with a heat source). Additional details: * Inside-out blankets have internal material mirrored on the outside, as well * Available for a variety of turbocharger and wastegate styles * A turbo is an absolute furnace within the engine bay. Excess heat produced by the turbo can cause devastation to surrounding sensitive components. Protect anything from oil lines, coolant lines, electronics, and even bodywork positioned close to the turbo from the dangers of excess heat * Funk shields feature specifically developed thread construction to allow for exceptional durability when removal is necessary for routine turbo maintenance. The new fireproof ultra-high temperature stainless steel thread is around 1mm in diameter and can now remain highly durable with temperatures in excess of 1,300 degrees C * New, thicker internal heat lagging insulation provides up to 3x improved heat reduction. This insulation wool is created from a ceramic silica complex matting to improve durability over prolonged heat cycles, as well as insulation quantities * ROHS tested and approved to ensure compliance and desired parameters * NOTE: Turbo blankets are not flammable. However, if any flammable fluids are introduced into close proximity of the blanket, the blanket could become a suitable ignition source for a flame to be produced. Please ensure that all necessary precautions are taken in regard to the appropriate maintenance of all oil and fuel lines and fittings surrounding the turbo charger and fuel injection system. Funk Motorsports takes no responsibility for fluid contamination their products.

5.0 out of 5 stars ( 1 )

$304.95

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$313.95

Walker CalCat Universal Catalytic Converters

Specifically created for Californians, Walker CalCat universal fit catalytic converters comply with regulations for OBD-II and pre-ODB-II vehicles. These converters feature a universal, weld-in design at a great cost savings over expensive OEM converters and feature a stainless steel body, heat-shielded pipe, and structural brace for enhanced strength and durability. Get the best balance of performance and price from Walker CalCat universal catalytic converters. Order the model designed for your application needs.

4.84 out of 5 stars ( 49 )

$167.99

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$348.99

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.

4.62 out of 5 stars ( 190 )

$337.00

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$469.00

Go Fast Bits DV Plus Diverter Valves with TMS Advantage

Go Fast Bits offers DV Plus Diverter Valves with TMS (Turbo Management System) Advantage for a wide range of vehicles, particularly imports. GFB's DV+ solution couldn't be simpler—keep what works and replace what doesn't. GFB expands the DV+ range with a direct-fit solution for the weak factory diverter valve used on many European vehicles. The solenoid coil itself from the factory-fitted valve is great (the ECU opens it faster than any pneumatic valve so why replace it?)—but the weak point is the valve mechanism itself. So GFB's DV+ solves this problem by replacing just the valve parts with an anodized billet aluminum housing fitted with a brass piston machined to exacting tolerances. The end result is sharper throttle response, lightning-fast valve actuation, and it will hold as much boost as you can throw at it. Other manufacturers' products involve replacing the entire system with a traditional pneumatic valve, requiring long vacuum hose runs, additional parts for tapping into the intake manifold vacuum—plus either a different solenoid valve to actuate the pneumatic valve, or a ballast resistor to plug into the OE wiring loom. All these additional items result in a product that is slower, less responsive, more expensive and takes much longer to install. GFB's DV+ solution on the other hand is more responsive, less expensive, easier to install, and doesn't cause compressor surge/turbo flutter. Order the model recommended for your vehicle. Additional notes: * Retains the factory solenoid coil for seamless integration * Replaces plastic valve parts with metal for reliability and strength on chipped engines * Exclusive "pilot-actuated" valve mechanism for rapid response at high boost

5.0 out of 5 stars ( 6 )

$153.90

Rein Automotive Exhaust Nuts

Rein Automotive exhaust nuts are manufactured to strict engineering standards and specifications in materials and tolerances to ensure proper mounting and retention of exhaust components like a flange or turbocharger. Designed as direct-fit replacements, this quality OE-style hardware is identical to OEM for your specific model, ensuring proper fit and function. Rein's exhaust nuts are offered in individual piece counts for your repair and replacement requirements. Order the hardware for your application needs.

Not Yet Reviewed

$1.99

AP Exhaust Universal Catalytic Converters

AP Exhaust universal catalytic converters will work to make your vehicle energy efficient and environmentally friendly. They're built with 409 stainless steel shell and neck construction for longer life, and feature AP's "Clean by Design" premium-grade ceramic substrates for maximum pollution reduction. Offering comprehensive coverage, AP Exhaust can provide universal catalytic converters with lower emissions, long-term reliability, and an easier install. The growing concern for the environment means there is a growing need for quality emission control products. AP Exhaust universal catalytic converters offer the quality, fit, and value to meet those concerns.

3.56 out of 5 stars ( 9 )

$107.99

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$194.99

Dinan Exhaust Valve Remotes

Dinan single exhaust valve remotes let you override the factory exhaust valve operation and fully open (or close) the valve at the press of a button. Directly compatible with 'F' and 'G' chassis BMWs using a single electronic valve—as well as 3rd generation Mini Coopers and late model Toyotas—these remote kits are robust in their potential applications. Once installed, simply press the top button of the supplied wireless remote to open the valve fully and enjoy maximum aural pleasure. Alternatively, when the need arises for the exhaust to be as quiet as possible, press the bottom button on the remote and the valve will close. These remote systems work with both the factory exhaust and any aftermarket system that utilizes the factory electronic exhaust valve actuator. Additional details: * Tested and compatible valve actuators include BMW P/N's 18307851568, 18308686640, 18308632154 and 18308623424. * Opens the factory electronic exhaust valve with the push of a button * Wirelessly remote controlled * Weatherproof housing * Extra-length wiring harnesses for maximum application and routing versatility

Not Yet Reviewed

$306.95

Clearance

PaceSetter Direct-Fit Manifold Catalytic Converters

Pacesetter direct fit manifold catalytic converters are custom-engineered to deliver maximum performance and efficiency from your engine. Designed for an easy installation, the units are manufactured from mandrel-bent, 16-gauge stainless steel, and use a stainless steel converter. They're available for many popular late model applications.

4.5 out of 5 stars ( 8 )

$486.99

$358.50

On Sale

aFe Direct-Fit Catalytic Converters

aFe is a premier designer and manufacturer of automotive performance upgrade systems and components. They feature a line of direct-fit catalytic converters available for many Domestic and European vehicles. They are constructed from premium mandrel-bent 409 stainless steel for excellent corrosion resistance and long life. They use laser-cut, factory-style flanges, so they are a true bolt-on system. aFe direct-fit catalytic converters also feature oxygen sensor ports (if applicable), so no modifications are necessary.

Not Yet Reviewed

$3,109.00

$2,798.10

Dorman Direct-Fit Manifold Catalytic Converters

Dorman direct-fit manifold catalytic converters bring several parts together in one package for a turnkey installation. These top-quality exhaust manifolds are joined to the cat, and most models include gaskets and downpipe hardware, as well. Constructed from cast iron or stainless steel tubing, the units resist warping, cracking and leaks—and all undergo thorough inspection to ensure quality performance. Dorman direct-fit replacements deliver ease and convenience to your exhaust system upgrade. The kits are available for hundreds of makes and models.

4.15 out of 5 stars ( 20 )

$520.99

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$599.99

Dorman AIR Check Valves

These Dorman A.I.R check valves are direct replacements for your OE A.I.R check valve. Dorman has been an industry leader in producing quality replacement parts and continues to strive for excellence. When you're trying to get your vehicle back on the road, look no further than Dorman.

5.0 out of 5 stars ( 4 )

$108.99

MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converters

MagnaFlow OEM Grade Federal/EPA Compliant direct-fit catalytic converters provide your vehicle with high-emission compliance, the latest technology, and premium-grade components. Along with those benefits, you also get their industry-leading warranties, so you can drive with confidence. MagnaFlow converters are designed to the exact original equipment specifications, while being engineered to keep the "Check Engine Light" off. Features include: * Stainless steel construction * CNC-precision robotic manufacturing * Meets or exceeds EPA emissions requirements * Hassle-free, OE-like fitment tailored to your specific application * Limited 5-year/50,000 mile warranty on construction * Limited 25,000 mile warranty on emissions

3.93 out of 5 stars ( 14 )

$548.00

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$1,089.00

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters

MagnaFlow California Grade CARB Compliant direct-fit catalytic converters comply with California Air Resources Board (CARB) emissions regulations, which require more precious metals and rigorous testing, plus the direct-fit means an easier bolt-on install for you. Choose the perfect fit for your vehicle. Features include: * Stainless steel construction * CNC-precision robotic manufacturing * Limited 5-year/50,000 mile warranty

2.67 out of 5 stars ( 3 )

$1,480.00

On Sale

aFe Mach Force XP Exhaust Systems

aFe Mach Force XP exhaust systems are constructed of mandrel-bent stainless steel and come complete with free-flowing muffler(s), OE-style bayonet hangers, flanges, and band clamps, plus all hardware necessary for a hassle-free installation. Offered in single, dual, or quad muffler configurations, their smooth curves and large diameter tubes help reduce restriction and keep exhaust gas flowing smoothly for increased horsepower and torque. Available in cat-back, axle-back, and downpipe-back designs, almost all Mach Force XP exhausts are direct bolt-on systems that require no cutting or drilling and include all necessary hardware for a hassle-free installation. Most also include wrinkle-black powdercoated or polished 304 stainless steel tip(s) with a laser-cut stainless steel aFe power badge. Select models have carbon fiber tips with CNC-machined laser-etched inserts. aFe Mach Force XP exhaust systems are an ideal combination of performance, fit, and value. Additional features include: * Fit a variety of light trucks and cars, including European models * Available with 409 or 304 stainless tubing (varies by model) * "Stepped design" models increase exhaust velocity creating a broader torque curve throughout the rpm range * Straight-through, free-flowing stainless steel mufflers absorb high-pitch tones producing powerful sound * Leak-free 360-degree sealing * Stable pipe location in high-vibration and high-heat conditions * Bayonet tips hold hanger bushings in place for an OE-style fit * Several versions convert OE single exhaust to dual exhausts * Where applicable, incorporates an exhaust valve that uses the OE exhaust valve motor (not included) to regulate exhaust flow * Some systems use a unique resonance chamber to replace the OE muffler; produces a weight savings of up to 15 lbs. * Hi-Tuck design of specific models provide extra ground clearance when using an aftermarket suspension kit Note: Some aFe Mach Force XP systems are "Race Only" products solely for competition use. Their use is limited to closed-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state, and federal laws.

4.46 out of 5 stars ( 37 )

$1,766.00

$1,501.10

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.

4.08 out of 5 stars ( 424 )

$665.00

Heatshield Products Lava Turbo Heat Shields

Reduce turbo lag while protecting other engine components and help to reduce underhood temperatures with Lava turbo heat shields from Heatshield Products. These custom-fit components use extreme-temperature materials to keep the heat on the hot side of the turbo where it belongs. Installation is a breeze since you don't have to trim or fit the heat shield blanket to fit your turbo housings. Heatshield Products Lava turbo heat shields' silica contact layer and silica insulation make the turbo shields capable of withstanding 1,800 degrees F continuously.

5.0 out of 5 stars ( 9 )

$362.99

MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converters

MagnaFlow California Grade CARB Compliant direct-fit manifold catalytic converters comply with California Air Resources Board (CARB) emissions regulations, which require more precious metals and rigorous testing, plus the direct-fit means an easier bolt-on install for you. Features include: * Stainless steel construction * CNC-precision robotic manufacturing * Limited 5-year/50,000 mile warranty

2.5 out of 5 stars ( 2 )

$1,113.00

Rein Automotive OE Quality Exhaust Manifold Studs

Rein Automotive's OE quality exhaust manifold studs are manufactured to strict engineering standards and specifications in materials and tolerances to ensure proper tightening and retention of the exhaust flanges. The studs are designed to be direct replacement for the original, identical to OEM for your specific model, ensuring proper fit and function. Rein Automotive OE quality stud fasteners are available in individual piece counts for your repair and replacement requirements. Order the OE quality studs for your application.

Not Yet Reviewed

$3.99

Dorman Turbocharger Oil Lines

In the long list of turbo failure causes, what ranks toward the top? Oil loss! Dorman turbocharger oil lines help to prevent this issue. They are designed as a direct replacement for an OE fit, and a seamless transfer of lubricant to and from the engine's turbocharger. These lines are of the highest in reliability, as they have undergone strict SAE testing to guarantee they meet or exceed the standards for burst, tensile, cold bend and leakage. Whether you are upgrading your factory turbo, or just want to guarantee the reliability of your ride, you can rest easy by using these Dorman turbocharger oil lines.

3.0 out of 5 stars ( 2 )

$53.99

Heatshield Products Stealth Turbo Heat Shields

Heatshield Products Stealth turbo heat shields can increase boost, reduce turbo chatter or flutter, and help keep your turbo from lagging. By retaining heat inside the shields, your turbo not only becomes more efficient but your underhood temperatures also get reduced, lowering the intake temperatures, and adding power. Heatshield's low-profile black Stealth shields withstand up to 1,800 degrees F (continuous), and their custom design means that no trimming is needed, making installation a snap. Whether you're hardcore racing or in a street machine, heat kills performance—battle back against it with the Stealth turbo heat shields from Heatshield Products best suited for your application!

4.33 out of 5 stars ( 3 )

$374.99