This TB was added to a 2003 Wrangler TJ. The packaging is good, everything you need was in the box. The original TB was 58mm, this BBK was 62mm. It doesn't feel like a huge upgrade, but it does allow a lot more air to flow into the intake manifold. At the same time I added K&N FIPK Part #57-1514-1. These 2 items are needed to get more air into the engine. This results in MORE power AND torque. My Jeep already had a real double exhaust. The exhaust helps remove air from the engine. The modernization of the FIPK and 62 mm TB has been completed. I really can't get over how much that helped the 4.0 liter jeep. If you have this update on your doorstep, just get it. Truly incredible performance. At the top of this page is a button that says 'Add to Cart'. Just click on it and happiness will arrive in the mail in about 2-4 days. If you press the gas pedal, you will π
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