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> plan on doing a 2.5 full exhaust. w/ high flow cat, help
post May 9, 2004 - 10:05 PM
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x_itchy_b_x



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So like the topis claims i plan on doing a 2.5 full exhaust. w/ high flow cat. BUT will i pass emissions with a high flow? anybody do it? i know i wont pass with the turbo. least i dont think i will. so i can take that off. but i cant jsut swap in an out a highflow cat and my stock cat on a custom exhaust. or can i? will the cat need to be DOT approved you think?


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post May 11, 2004 - 4:36 PM
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brianforster

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QUOTE (celicarocker @ May 11, 2004 - 8:14 PM)
QUOTE (brianforster @ May 11, 2004 - 3:58 PM)
how much HP would be gained with say a 2.25 exhaust with high flow cat on a N/A 5sfe?

probably nothing... NA 7a-fe's dont respond much to mods like that...

so people who put the greddy sp exhaust system on their N/A gt/st celi's did it for the low pitch growl?

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