Stock headers vs. aftermarket

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06-17-13, 12:12 AM

Cuzzi5

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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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06-17-13, 04:20 AM

Endika

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I'll just leave this here:
http://my.is/forums/f184/official-de...review-458858/

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06-26-13, 02:25 PM

Bezik777

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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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06-30-13, 05:36 AM

Willmkent

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Should look into the new dezod green header, they are making an excellent product

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07-07-13, 05:36 AM

is3wagon

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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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12-18-13, 03:42 AM

l2apid

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whats up i wanna know a good exhaust setup please anyone got ideas

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12-18-13, 03:44 AM

l2apid

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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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Stock headers vs. aftermarket

Stock headers vs. aftermarket

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