exhaust pipe size?

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09-14-06, 03:47 PM

cino78h

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exhaust pipe size?

i has an sc300 w/1JZ..which size exhaust pipes from back to down pipe should i run to acheive the most hp??3'' or 4''?? thks-

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09-15-06, 08:10 AM

skeet94

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3" otherwise you lose lowend torque and it'll seem like you've increased turbo-lag...if you're going to go with aftermarket turbo(s) then go 4" but only if you plan on exceeding 600rwhp

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09-15-06, 11:07 AM

1JZ300

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i have a 3 1/2" on mine......its nice, deep

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09-15-06, 02:21 PM

cloudnine

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Since you're turboed (1jz-gte), the less restrictive the exhaust, the better. Only NAs have the problem with losing low end power because of a bigger pipe.