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BMW Z4 Parts and Accessories

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On Sale

XS Power Titan8 Lithium Batteries

XS Power Titan8 lithium batteries are designed for peak power. This Lithium Titanate Oxide (LTO) Series uses a very high-power lithium cell that is designed for very high-burst output (up to 100 times its capacity) as well as very high-charge current (30 to 60 times its capacity). This translates to a single 10Ah module that can support burst current up to 1,000 amps and can accept 300 amps of continuous charge current. The built in 2/0 bussing allows up to four positive and four negative hidden direct connections to each module without the need for any external exposed bussing, while still leaving two easily accessible top terminals and four series or parallel expansion terminals to easily build a bank of nearly any configuration from 12 V, 24 V, 36 V, or any configuration imaginable. Each module comes standard with a built-in balancing system and can be upgraded to include Bluetooth connectivity that allows remote cell monitoring, internal temperature sensing, battery health monitoring, and can be configured to send notifications to any tablet or smartphone when any user preset limit is met, including low voltage, over temperature, overcharge, etc. XS Power Titan8 lithium batteries are also offered in BCI direct fit models that are fully insulated with temperature monitoring built in that are suitable for use in the factory under hood position.

4.2 out of 5 stars ( 5 )

$599.99


$539.99

CSF Racing Radiators

CSF racing radiators feature the most advanced and efficient radiator cores in the industry. Offered for both vehicle-specific and universal applications, they use innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation. Specially engineered tubes in the shape of a "B" are carefully formed and then brazed over the seam. CSF is able to use thinner and lighter aluminum because this design is stronger than normal welded "O" shape tubes. With the inlet in the middle of a seam-brazed tube, the surface area of the tubes is increased approximately 15 percent over regular tubes. With CSF's B-tubes you get dual liquid laminar flow and the efficiency of two smaller tubes vs. one large tube in the same space. High-efficiency, multi-louvered fins are precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in CSF's wind-tunnel lab. CSF offers two all-aluminum end-tank designs to match any style and performance needs. CSF 7000 Series racing radiators have OE-style radial tanks that are flat, rounded, and welded together. Perfect for the customer who likes the sleek and smooth look, and wants to display the intricate welding. CSF deep-drawn end tanks are stamped to the same geometry of OE plastic end tanks. The only high performance manufacture to feature this advanced radiator technology; CSF deep-drawn end tanks feature less welding, and are generally considered the strongest tanks in the industry. Additional features of CSF racing radiators include: * Finished with CSF's Show-Stopper mirror polish process * CAD/CAM designed * Racing-style aluminum drain plug * Brazed in a controlled atmosphere brazing (CAB) furnace—the preferred process for aluminum * ISO 9001/9002 certification * Military-grade (special clad) aluminum used for tubes, fins, and headers * Plates and side brackets meet JIS 3003 specifications * Privately owned factories with full in-house tool rooms * CNC-machined fittings * TIG welded

4.63 out of 5 stars ( 38 )

$549.00

$599.00

On Sale

Mishimoto Heat Exchangers

Mishimoto heat exchangers offer improved design for increased performance in your vehicle. Air-to-water intercooling is efficient, and while stock exchangers perform well; their small cores and plastic parts leave room for improvement. Mishimoto performance heat exchangers are designed with increase core volume and external fin surface area, plus they deliver full aluminum construction—including the end tanks—and TIG welding. These upgraded features deliver efficient operation, a drop in temperatures, and a rise in performance.

5.0 out of 5 stars ( 2 )

$749.95

CSF Heat Exchangers

CSF heat exchangers offer larger cores with greater cooling capacity. They feature their exclusive "B-Tube" technology--lighter, thinner aluminum material carefully formed in a "B" and brazed over the seam to seal. The design is stronger and offers better cooling efficiency than traditional "O" shaped tubes. With great power comes great heat. Cool your power with CSF heat exchangers. Features include: * Dual-pass flow structure allows the coolant to flow across the core of the radiator twice before exiting the radiator, for the lowest outlet temperature possible (OEM-style design) * CNC-machined, OEM-style "quick-connect" inlet/outlet connections * CNC-machined, OEM-style mounting brackets and fittings for superb fit and durability * Includes removable aluminum rock guard * All-aluminum race-style drain plug * Drop-in fit requires no modifications to install--accepts all attaching OEM components, including "quick-connect" hoses, mounting brackets, OEM X-brace, and all air ducting/shrouding. * Lifetime warranty

1.0 out of 5 stars ( 1 )

$699.00

PowerStop Z23 Evolution Sport Brake Upgrade Kits

PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. Forget standard, off-the-shelf parts. PowerStop's Z23 Evolution Sport brake upgrade kits come with everything you need--pads, rotors, and premium stainless steel hardware for an easy, bolt-on upgrade for your daily-driver. Along with increased braking power, the carbon fiber ceramic brake pads feature a low-dust formula to keep those wheels looking great while you say goodbye to nasty brake dust. These pads combine with drilled and slotted rotors to ensure a cool, smooth ride that protects against rust and corrosion. Give your daily driver the easy and affordable performance upgrade it deserves with PowerStop Z23 Evolution Sport brake upgrade kits.

4.72 out of 5 stars ( 3088 )

$539.04

$721.82

Mishimoto Performance Radiators

Mishimoto performance radiators are designed and engineered to maximize cooling efficiency, boost engine functions, and, most of all, protect your engine from overheating. Many stock radiators can't handle the additional heat that comes higher horsepower levels. So, swap out your stock radiator for an all-aluminum Mishimoto. Key features and benefits of Mishimoto performance radiators include: * Available for universal and exact fit applications (no cutting or modifications required) * All-aluminum construction for optimal heat dissipation, improved strength, and reliability * Increased cooling capacity due to their massive core size * 100 percent brazed aluminum core for minimal distortion, low stress, and clean joints * Available in various sizes with 2-row or 3-row cores * TIG-welded for clean, strong welds and increased durability * Magnetic drain plugs capture metallic debris or fragments * Included high-pressure 1.3 bar cap raises the coolant boiling point for greater safety and efficiency * Automatic transmission and accessory coolers included where applicable

4.42 out of 5 stars ( 338 )

$549.95

$599.95

Weld Performance Ventura Drag Gloss Black Wheels

Weld Performance Ventura Drag gloss black wheels are available in a variety of widths, diameters, bolt patterns, and other fitment options. The stylish one-piece aluminum beauties will add plenty of pizzazz to every corner of your vehicle. Weld Racing has dominated all levels of drag racing and oval racing. Their precision-engineered drag racing wheels have been proven at 330 mph and up against the cushion at bullrings around the world. Made from the highest grade forged aluminum, each Weld racing wheel is engineered and crafted for one purpose: to win! The in-house engineering lab optimizes and tests each racing rim for maximum performance. With 24 straight NHRA Pro Stock titles and countless nitro class wins, led by John Force, Weld Racing wheels have the winning formula for your sportsman or pro drag car—or Circle Track racing wheels for your Sprint, Midget, micro or late model.

Not Yet Reviewed

$510.00

LuK Clutch DMF Flywheels

The downsizing of modern passenger car engines enables reduced fuel consumption and CO2 emissions, but can also increase rotational irregularities and natural vibrations. Torsional vibrations transmitted to other components in the drivetrain diminishes comfort and may even lead to component damage, therefore effective vibration damping is essential. LuK dual mass flywheels (DMF) reliably dampen torsional vibrations in the powertrain and ensure high gearshift and driving comfort in all speed ranges. Unlike a conventional flywheel, DMFs consists of two masses which are mounted to rotate against each other. A damping system in the form of arc springs is integrated to almost completely absorb the torsional vibrations of the engine. Precisely matched to the respective vehicle, each LuK DMF enables low-speed driving and ensures lower fuel consumption, as well as reduced emissions. Order the proper size for your vehicle.

4.42 out of 5 stars ( 12 )

$507.99

$663.99

ACT Heavy-Duty Pressure Plates

ACT heavy-duty pressure plates feature induction-hardened diaphragms to reduce wear and promote smooth operation. They utilize stronger drive straps and rivets to strengthen the pressure plate and prevent breakage. All castings are CNC-machined for greater consistency and precision. Step up your race and street game; order the ACT heavy-duty pressure plates recommended for your vehicle. Some of their many features include: * Most popular choice * 20 to 50 percent clamp load increase * Computer spin-balanced * Stiffening ribs * Pedal feel is stock to moderate * SFI-certified * Recommended disc: Street/Race

4.9 out of 5 stars ( 10 )

$561.00

PowerStop Z26 Street Warrior Brake Upgrade Kits

PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. PowerStop Z26 Street Warrior brake upgrade kits are recommended for high performance, high-horsepower muscle and modified cars. These kits come with everything you need for an easy installation, including pads, rotors and stainless steel hardware. The drilled and slotted rotors and carbon fiber ceramic pads combine to provide shorter stops under the most demanding conditions. PowerStop's Z26 Street Warrior kits are affordable bolt-on upgrades that deliver the braking power you need to rein in all those ponies, and with their low-dust and noise-free formula, you'll spend less time cleaning your wheels and more time enjoying what matters most--the drive.

4.59 out of 5 stars ( 766 )

$537.99

$651.98

Niche M148 Essen Chrome Wheels

With 10 tapered spokes and brilliant plating, Niche M148 Essen chrome wheels are built to impress. They feature concave monoblock casting, branded center caps, and clearance for large calipers. Brighten everyone's day with Niche M148 Essen chrome wheels.

Not Yet Reviewed

$595.00

SPEC Stage 4 Clutch Kits

SPEC Stage 4 clutch kits are solid hub versions of their Stage 3 clutches. Each hub is solid with eight rivets and the assembly is heat-treated for strength and durability. They are available in a 3, 4, and 6-puck configurations. Use a 3-puck for the lightest option or a 6-puck for the smoothest engagement. The 4-puck kit is a good compromise for both. Street-drivable in 6-puck configuration, but not street friendly due to the rigid hub. Additional features of SPEC Stage 4 clutch kits: * High-clamp pressure plate * Carbon-graphite friction material * High-torque solid hub and disc assembly * Bearing and tool kit included * Great for road racing, rally, drag racing, drifting, and pulling

3.33 out of 5 stars ( 3 )

$674.10

SPEC Tuned Billet Flywheels

SPEC tuned billet flywheels are manufactured and developed according to how specific vehicles react to changes in rotating mass in particular driving environments. They are not generic one-size-fits-all lightweight flywheels--though they can be used for an array of driving habits and racing/high performance applications. All SPEC tuned billet flywheels are manufactured from only the highest quality steel and aluminum. They are machined to industry-leading .001 in. tolerances ensuring a flat seating surface for the clutch and smooth rotational qualities for excellent balance, drivability, and extended clutch life.

4.33 out of 5 stars ( 15 )

$548.10

Rotiform R140 RSE Gloss Silver Wheels

Rotiform R140 RSE gloss silver wheels are available in a variety of diameters, and other fitment options to suit your vehicle. These monoblock low pressure cast wheels utilize innovative new engineering and casting methods, yielding a stronger, lighter wheel, while still retaining the Rotiform signature look.

Not Yet Reviewed

$504.00

$523.00

SPL Suspension Control Arms

SPL Suspension offers front/rear upper and lower control arms in your choice of styles with precision part tolerances engineered to restore OE suspension geometry and alignment. If you have got bent control arms, or worn-out ones with tired bushings, new control arms from SLP Suspension will get you riding like new, and they'll make it easy to restore the wheel alignment specifications and steering performance that you've been missing. Enjoy improved directional stability, handling, and a smoother ride with new control arms from SPL Suspension. Choose the application that you need.

Not Yet Reviewed

$719.10

Clearance

Perfection OE Replacement Flywheels

Perfection Clutch offers OE replacement flywheels for applications spanning a half-century. Machined from ductile iron, the flywheels are available in a variety of styles, sizes, and tooth counts. Flywheels serve three purposes: First, to maintain a rotating mass (inertia) to assist the engine rotation, providing a more consistent delivery of torque during running. Second, to provide a ring gear for the starter motor to engage on. And third, to provide one of the driving friction surfaces for the friction disc. Over a hundred models are available; select the replacement recommended for your vehicle.

4.67 out of 5 stars ( 51 )

$712.99

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

$599.99

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

$551.00

South Bend Clutch Stage 1 Heavy-Duty Clutch Kits

Designed for spirited and daily driving, the South Bend Clutch Stage 1 clutch kits make for a great OEM replacement when your factory clutch gives out. The pressure plate included in this clutch kit has an increased clamp load that promotes longer life, and the disc is dual dampened for smooth engagement and increased transmission life. The disc has also been designed with premium friction materials, which will ensure for rapid heat dissipation and will help to increase the life of the clutch. Select the Stage 1 HD clutch kit designed for OE replacement or your performance application.

4.82 out of 5 stars ( 17 )

$620.89

$677.00

On Sale

aFe Track Series Stage 2 Carbon Fiber Pro 5R Air Intake Systems

aFe Track Series Stage 2 carbon fiber Pro 5R air intake systems feature open-element designs displaying massive air filters and carbon fiber intake tubes. Laid out to fit each specific make and model available, the aFe Track Series Stage 2 carbon fiber Pro 5R air intake systems are designed to outflow factory intakes—perfect for enthusiast's who demand power, as well as a more aggressive look and sound under the hood. aFe Track Series Stage 2 carbon fiber systems may feature: * Lightweight, high-gloss, clearcoated 100 percent twill weave carbon fiber tubes * Housings made from XLPE (cross-linked polyethylene) polymer minimize warm engine air for maximum performance * Aluminum heat shields are one-piece, lightweight, and powdercoated black—block performance-robbing engine heat * Large Pro 5R 5-layer washable/reusable high performance air filter available pre-oiled or dry, depending on model * Stainless steel clamps, silicone couplers, and hardware * Unique (patent-pending) filter-to-housing interface using fewer parts than traditional systems for a hassle-free installation

Not Yet Reviewed

$750.00


$675.00

On Sale

aFe Track Series Carbon Fiber Pro Dry S Air Intake Systems

aFe Track Series carbon fiber Pro Dry S air intake systems are open-element designs displaying massive air filters and carbon fiber intake tubes. Laid out to fit each specific make and model available, the systems outflow factory intakes, deliver a more aggressive sound, and add plenty of style for under your hood. aFe Track Series carbon fiber systems may feature: * Lightweight high-gloss, clearcoated 100 percent twill weave carbon fiber tubes * Large oil-free Pro Dry S 3-layer washable/reusable high performance air filter * Stainless steel clamps, silicone couplers, and hardware * Housings made from XLPE (cross-linked polyethylene) polymer minimize warm engine air for maximum performance * Aluminum heat shields are one-piece, lightweight, and powdercoated black—block performance-robbing engine heat * Unique (patent-pending) filter-to-housing interface using fewer parts than traditional systems for a hassle-free installation

3.5 out of 5 stars ( 2 )

$773.00


$695.70

EBC Stage 20 Ultimax2 Front and Rear Pads and RK Rotors

Give your vehicle's braking system a boost with EBC Stage 20 Ultimax2 brake pads and RK rotors! A balanced and maximum braking effect only happens when all brakes are working, and the often forgotten rear brakes account for up to 40 percent of your vehicle's stopping power, so renewing the front and rear at the same time makes perfect sense. High-efficiency Ultimax2 EBC pads are built with Aramid fiber and are chamfered with patented EBC brake-in coating for faster pad brake-in after their installation. The pads also feature a centerline slot to to prevent heat expansion and noise. The RK rotors are direct-fit OEM replacements with a thermic anti-rust surface coating, and they are fully balanced and runout tested for smooth braking performance. Stage 20 kits come with front and rear pads, rotors, and caliper lube.

4.28 out of 5 stars ( 18 )

$592.86

$600.35

Rotiform R141 RSE Matte Anthracite Wheels

Rotiform R141 RSE matte Anthracite wheels are available in a variety of diameters, and other fitment options to suit your vehicle. These monoblock low pressure cast wheels utilize innovative new engineering and casting methods, yielding a stronger, lighter wheel, while still retaining the Rotiform signature look.

Not Yet Reviewed

$504.00

Sachs Stock Replacement Dual Mass Flywheels

The SACHS dual-mass flywheel is the key to first-class passenger car and light commercial vehicle drivability. The driver and occupants are aware of reduced driveline and body noise and enjoy smoother travel with more pleasant gear shifts. SACHS offers dual-mass flywheels for many OE applications, so be sure to check for yours when replacing the clutch.

3.5 out of 5 stars ( 2 )

$659.99