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Stock headers vs. aftermarket

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Old Jun 17, 2013 | 12:12 AM
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Default Stock headers vs. aftermarket
Will I notice any gains by adding performance headers on my 2003 Lexus is300? If so, which would you recommend?
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Old Jun 17, 2013 | 04:20 AM
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I'll just leave this here:
http://my.is/forums/f184/official-de...review-458858/
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Old Jun 26, 2013 | 02:25 PM
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more info . in the end stock headers are the choke point in the is300 exhaust system ...

http://my.is/forums/f88/official-is3...thread-429150/
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Old Jun 30, 2013 | 05:36 AM
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Should look into the new dezod green header, they are making an excellent product
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Old Jul 7, 2013 | 05:36 AM
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Looks like i kno what im buying next month. My stock cats are finally spent after 198,974 miles. Thanks for the link
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Old Dec 18, 2013 | 03:42 AM
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whats up i wanna know a good exhaust setup please anyone got ideas
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Old Dec 18, 2013 | 03:44 AM
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also if anybody has a stag 2 list of upgrades for 2001 lexus is300 AT
what are some good fuel injectors for it
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Old Dec 18, 2013 | 10:16 PM
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Originally Posted by Willmkent
Should look into the new dezod green header, they are making an excellent product
i also recommend this header as well, top notch quality and performance.
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