9 Best Aftermarket Parts For Cars | More Throttle, More Miles

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Click-and-go wheel removal for track days, built from solid billet.

For a track-focused build, this quick release lets you pop the steering wheel off in seconds using a ball-lock mechanism, and a push pin helps prevent the release from open up when you do not want it to. The full T-6061 aluminum construction with an anodized finish is exactly what owners rave about — the machining quality and polished titanium chrome ring get consistent praise.

It fits any 2-way, 6-hole pattern aftermarket steering wheel or hub adapter, and the grip size is 3.5 inches. At 1.6 pounds it adds negligible weight, and the release button is the main mixed note: a few owners find it can stick occasionally. This model intentionally skips the horn “ding” sound that some other quick releases make, which is normal for this generation.

Installation instructions are not included, so professional installation is highly recommended. You also need a separate hub adapter and a compatible third-party wheel, which is standard for this setup. It is a universal part for passenger cars, so check your hub pattern before buying.

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Fresh ride height and control, without the spring compressor headache.

Replacing struts usually means wrestling a coil spring compressor, but this kit arrives fully assembled — strut and coil spring together — so it bolts in with no special tools. Owners mention the ride quality looks and feels like the factory part, with one noting it was an easy bolt-in on a 1996 Toyota Avalon and still impressing after roughly 1,000 miles.

You get a car that drives better and sits with a renewed stance, thanks to a part that weighs 20.6 pounds per pair. Owners praise the quality and fit, and the 10-year warranty adds confidence. The trade-off is durability: while many find them well-built, a recurring note mentions clunking or squeaking noises after about a month of use in some cases.

This kit is specifically for the 2002-2004 Acura RSX, and the fully assembled design means no extra work or special tools required for installation. If your RSX is sagging or bouncing over bumps, this is the direct, value-minded fix.

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A complete four-corner brake job in one heavy box, drilled for heat management.

Braking a 5,000-pound SUV demands serious hardware, and this kit delivers drilled and slotted rotors — 14.17 inches up front and 13.78 inches in the rear — paired with ceramic pads. The drilled holes help the rotors cool and the slots keep the pad surface clean, which owners feel as strong, consistent stopping power. It is a direct replacement for 2006-2009 Range Rover Sport Supercharged models only, so check that spec before ordering.

The kit is unusually complete: two front rotors, two rear rotors, four ceramic pads, plus a 10oz brake cleaner spray and a 12oz brake fluid bottle. Shoppers say a perfect fit and easy installation, and the quality is the most-praised aspect. The honest trade-off is noise — some buyers report zero noise while others mention squealing pads, so your experience may vary. A rare complaint notes a missing part in the box, though support responded quickly in that case.

At 102.8 pounds, this is a serious investment in your SUV’s stopping ability. The 10-year warranty is generous for a wear item, and owners who have used Detroit Axle brakes across several vehicles say they work great every time.

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One box, one job: the total timing belt solution with a fresh water pump.

A timing belt replacement is not where you cut corners, and this kit makes it a single-box job. It includes 7 components — one belt, one hydraulic tensioner, four idlers, and one water pump — plus an installation tool and Loctite threadlocker. Owners on a 2005 Subaru WRX STI report it installed smoothly, and a Legacy GT owner confirmed no fitment issues at all.

The quality and fitment are the two things owners praise most, with one noting all parts except the belt and water pump are OEM-grade. That water pump is designed and built for long-lasting, efficient cooling, and the hydraulic tensioner is included where needed. A Legacy GT owner drove 60,000 miles after the replacement with no complaints, though they noted the water pump seems smaller than the OEM unit.

At 9.3 pounds, this is a substantial maintenance upgrade that prevents catastrophic engine damage. The one dissenting voice calls out the tensioner and idlers as lower quality, so it is worth inspecting those parts carefully on arrival. For a preventive maintenance job, having everything in one box beats chasing individual parts.

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A wider 78mm bore that sharpens throttle response in under 30 minutes.

If you drive a Ford Mustang GT 4.6L 2V, this throttle body is among the most rewarding bolt-ons you can do. The larger 78mm bore lets more air in, so you get a firmer pedal and noticeably quicker response, according to owners. One first-time installer — a woman doing it alone — called the process “very easy” and praised how well the part was made.

The performance gains are what owners praise most, especially in cars that already have cold air intakes and exhaust modifications. On a mostly stock 2003 Mustang GT, owners still felt improved throttle response and noticed a cool whistle from the intake. The install takes less than 30 minutes, and the charcoal finish looks clean under the hood.

There are a few fitment details to know. On some installations, you may need to drill a small hole for a vacuum source, and one owner noted the left bracket hole is shallower and needs a spacer. It weighs 1.36 kg and carries a one-year warranty. Pair it with a cold air intake and exhaust, and the throttle response gains compound nicely.

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Four tunes, live engine monitoring, and code clearing — all from a dashboard-mounted display.

This tuner plugs into your OBD port and open up four preloaded tunes with a few button presses, adding power, torque, and fuel economy with dyno-proven calibrations that meet emission requirements in all 50 states. A 2011 Nissan Titan owner towing 7,800 pounds reported no more downshifting on steep hills, along with highway fuel economy jumping from the low teens to 16+ mpg.

The heads-up display monitors over 15 performance parameters at a glance, mounted on the pillar, window, or dash. Customers note fuel efficiency gains of 1 to 3 mpg depending on the vehicle, and the tuner stops pedal lag for a more responsive feel. It works with select Ford, Lincoln, Dodge, Chrysler, Jeep, Chevrolet, GMC, Cadillac, and Nissan applications — so verify compatibility with Bully Dog before buying.

The mixed story here is reliability and installation. Installation is not always straightforward — a 2007 Avalanche owner called the USB updates painful and needed a 12V switched power source, which is hard to find on GM trucks. More seriously, a 2001 Silverado 2500HD owner reported a catastrophic failure where the unit shorted, corrupted the ECM, and cost hundreds to reflash. Functionality is the most-discussed aspect, and it is genuinely mixed: many love it, a few hit real problems. This is the pick where you should weigh the risk carefully.

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The cam that gives LS trucks a snarling chop and real power, straight from Texas Speed.

For anyone with a 4.8, 5.3, or 6.0 LS engine with cathedral port heads, this cam kit delivers that classic aggressive chop and serious output. Under dyno testing it gained 65+ horsepower and 25+ ft-lbs of torque at the crank, and the operating range of 1200-6500 RPM keeps it drivable on the street. The sound is the star — owners call it a “nasty little beast” and the response is a mean, snarling idle.

The kit is complete for a cam swap: the cam itself,.560-lift beehive valve springs, valve seals, and OE replacement pushrods. It is designed to work with LS6 valve springs and a factory torque converter, so no aftermarket stall converter is required. A 5.3 Tahoe owner used it in a 6.2 swap and reported 390 rwhp after tuning, and towed a Mustang on a trailer with ease. Fuel economy even improved from 14-15 mpg to 17-19 mpg in another build.

Quality and sound are what owners praise most, but this is a serious project. Newer 07-13 LS trucks need a timing gear and lifter swap, and a quality tuner is essential. The kit weighs 15.37 pounds and is machined to a high standard. This is not a beginner bolt-on — it is a builder’s part for someone comfortable inside an engine bay.

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Truck-grade braking that shrugs off heat, with carbon fiber ceramic pads front and rear.

When you haul heavy loads or tow a trailer, stock brakes can fade. This Z36 kit is built specifically for that abuse, combining carbon fiber ceramic pads with drilled and slotted rotors that run cooler under pressure. The drilled holes help the rotors dissipate heat and the slots keep the pad surface clean, so a 2016 Ford Explorer owner reported the truck “stops better than factory” after the swap.

The kit is a complete front and rear upgrade: two front Z36 pads, two rear Z36 pads, and four drilled and slotted rotors, plus installation hardware. Owners running a fleet of vehicles say they would not go back to regular pads — the stopping is immediate and there is no fading from heat. The 36-month / 36,000-mile limited warranty backs the investment.

At 94.2 pounds, this is heavy hardware for a heavy job, and it fits the Ford Explorer, Ford Taurus, and Lincoln MKT. The stop performance is what owners praise most, and quality follows close behind. The price is higher than standard pads and rotors, but owners who tow or carry heavy loads consider the upgrade worth it for the consistent, fade-free stopping.