4-2-1 or 4-1 Header for a GSR

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Mar 10, 2005 | 02:43 PM

#11

OilCanBoyd

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My car is jsut stock. And it is not going to be lowered. So a 4-1 would be fine? I don't want to have to worry about driving over "normal" things. Speed Bumps etc.

Mar 10, 2005 | 02:48 PM

#12

Bryan_M

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don't worry about it if your car isn't lowered. a 4-1 will probably give you more noticeable power gains.

Mar 12, 2005 | 11:50 AM

#13

RDN

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4-1 will not be carb legal, if you care about that. Not a good idea if you're in Cali.

Mar 12, 2005 | 11:55 AM

#14

Snoopy

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Quote:

Originally Posted by RDN

4-1 will not be carb legal, if you care about that. Not a good idea if you're in Cali.

what are you talking about? a regular dc 4-1 is carb legal. a jdm dc 4-1 is NOT carb legal.

Mar 12, 2005 | 01:45 PM

#15

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Quote:

Originally Posted by :snoopy:

what are you talking about? a regular dc 4-1 is carb legal. a jdm dc 4-1 is NOT carb legal.

:werd: I used to have a DC 4-1 header and the CARB number was right on the top of the #4 cylinder port.

Mar 12, 2005 | 06:12 PM

#16

OilCanBoyd

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I'm not in Cali. What other states would this be a problem in?

Quote:

Originally Posted by RDN

4-1 will not be carb legal, if you care about that. Not a good idea if you're in Cali.

Mar 12, 2005 | 06:34 PM

#17

Omniscient

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From: The boonies, CT

When I got my 4-2-1 DC header it came with a CARB sticker in the box to put on one of the cylinder pipes. So the 4-1 probably does too.

Mar 12, 2005 | 06:41 PM

#18

dubcac

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From: Westside til I die

My 4-1 header has a CARB plate welded onto one of the runners. Certain headers are NOT carb approved...like the OEM JDM 4-1, DC JDM 4-1 etc...but there are 4-1 CARB approved headers.

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Mar 14, 2005 | 04:23 PM

#19

joebenz

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From: the best coast

my 4-2-1 is not CARB legal

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Mar 14, 2005 | 05:30 PM

#20

R_Squared

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From: Indianapolis

How can you tell the difference between a JDM DC 4-1 Header and a regular DC 4-1? The reason I ask is because my header was already on the car when I bought it...

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