As we all know, Jeep builds wranglers for off-road performance, but they also stick to the EPA requirements. Aftermarket performance accessories are available to make your Jeep perform much better both on and offroad. There are many companies such as K & N, Holley and Turbo City that make great products such as air intake systems for your Jeep, high flow exhaust systems and high performance carburetors. These accessories can give your 4 Liter better power, better gas mileage and over all improved performance. The downside is they can be expensive and hard to find.
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