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Old 12-30-2013, 11:16 AM   #1
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Im looking to put headers and exhaust on my stock 4cyl 5 speed wrangler. its a 2000 tj. Any advice before I spend the cash? Im new to 4cyl is it the bang for the buck ?

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Old 12-30-2013, 11:44 AM   #2
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Why do you want to install a header and new exhaust? If you are seeking additional power then do yourself a favor and regear your axles instead.

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Old 12-30-2013, 01:32 PM   #3
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No bang for the buck! I don't think I would spend the money for headers and exhaust. Good advise above about re-gearing.
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Old 12-30-2013, 02:41 PM   #4
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Look at 505 performance. They make a turbo kit for the TJ 4 banger.
2000 solar yellow 4.0 sport 3" BDS, 1.25" JKS body lift, 1" Zone motor lift, JKS quicker disconnects, 33x10.5 BFG KM2 on black american racing wheels. D44 rear.
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Old 01-01-2014, 10:34 PM   #5
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The Banks Power 51316 is a nice set of stainless steel headers, and the Spectre 9940 is a sweet intake. I put them on my '98 TJ and really like them. Didn't turn the 2.5 into a 4.0, but it made a noticeable difference in power. Plus they look fantastic.
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Old 01-02-2014, 09:46 PM   #6
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I put a Banks header on my 4 cylinder. Kind of expensive but it works well. I made several engined mods: cold air intake, larger throttle body, exhaust header and electric cooling fan conversion. Of those, the single best result was from the electric fan conversion. It took a big load off the engine. Do the header if that's what you want. It'll let the engine breathe better. You won't get much more hp, but it'll have better power delivery.
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Old 01-04-2014, 10:02 PM   #7
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What fan kit did you use? I'm looking for recommendations. This may be the next mod for my '98 TJ, because it definitely suffers from lack of power on the highway.
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Old 01-04-2014, 11:09 PM   #8
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I don't think a fan will really fix your lack of power on the highway problem friend
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Old 01-06-2014, 01:23 AM   #9
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Every extra HP helps on the 2.5L.
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Old 01-06-2014, 05:13 AM   #10
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The problem with aftermarket headers and some direct replacement manifolds is they WILL crack if they do not have the flex/expansion joints.
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, 55w DDM HIDs
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Old 01-06-2014, 08:03 AM   #11
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Ford 19lb injectors and the 4.0tb were the biggest gain on my 2.5. I agree that the Efan does take a huge load off the engine and it spools up faster. But overall a re-gear is the best.

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exhaust , headers

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