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An example of a cat-back system as installed by a local exhaust shop: The tubing is oversized, extra connections were created to run test pipes at the track (catalytic-free) and dumps were used to cut weight and eliminate scratched tips. It's still legal.
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Open-element filters come in many shapes. Can you tell which photo is of a '57 Chevy Nomad and which is of a 2000 Chevy Tahoe?
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Aftermarket plug wires are a cosmetically appealing bringer of horses. Remember to remove and install one wire at a time or you might be in for a surprise.
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Replacing your old-school points ignition with aftermarket solid-state electronics will rob you of unreliable, weak and anemic sparks and a need for constant maintenance. Sorry.
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Drilled and slotted rotors can often be bolted right into place of the original hardware. Install high-performance pads at the same time.
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Although you'll have to bleed the brakes after installation, braided brake lines can eliminate years of complaints about mushy brake pedal feel.
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Remove parasitic horsepower loss by yanking your mechanical fan. Electrics are easy to fit and can be located on the front or rear of the radiator. Better yet, more power!
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In place of the factory hardware or routed to the breeziest place you can find, fluid coolers like this will prolong the life of your transmission, power steering, engine oil or any other fluid.
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Another fluid that can be cooled better?coolant! Installation is stupid-simple (usually) and makes an immediate improvement in engine cooling. Looks trick, too.
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Fuel pumps wear out, whether mechanical (shown) or electrical. Fuel filters can become clogged and impede flow. Swap them both and you'll be fueled properly.
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