Borla header for EJ18

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08-05-2003, 11:14 AM

rau

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Borla header for EJ18

where can i find a borla header for my car? i know they exist b/c i have the p/n, but borla says its for the 2.2/2.5l motors. can anyone help me?

rau

08-05-2003, 02:06 PM

Kevin M

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The 2.5 liter headers will fit. The 2.2 liter will not, however.

08-05-2003, 11:41 PM

CheezeWeezle

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depends on wether its a single port head too.....you can tell by just looking underneath the car...

08-07-2003, 12:11 PM

Kostamojen

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Imprezas never had single port EJ18's.

08-08-2003, 09:54 AM

Marnix

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The headers will fit on any 2-port (per head) engine, beit EJ15, EJ16, EJ18, EJ20, EJ22 or EJ25. Block width are all the same.

For US markets single port heads were introduced, so it seems, but in Europe all Legacy, Impreza and Forester motors have dual exhaust port heads.

08-20-2003, 12:25 PM

rau

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thanks guys. i accept all the help i can get!

08-27-2003, 09:28 AM

Rallysportz

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So has anybody actually succesfully installed a dual port set on an EJ18 block? I drive a 1.8 and will get Borlas pretty soon but there are still doubts in my mind that they won't line up or the hole patterns may be different. Also, wouldn't the exhaust ports on the 1.8 be quite a bit smaller than the 2.5s? Would that affect flow in any way??

08-27-2003, 09:41 PM

Kostamojen

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I have the dual-port borlas on my EJ18 right now. The exhaust ports arent noticably smaller than the EJ25's either.

08-28-2003, 08:17 AM

Rallysportz

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Cool man. What year is yours? Do you get a really nice grumble out of them? Did they line up nice for the install? Thanks!

08-29-2003, 12:58 AM

#10

Kostamojen

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Its a 95, and ya they grumble nicely, doesnt sound at all like a 1.8l. The install is ok, its not perfect, but ive never heard of a borla installing 100% perfect, just took a little manuvering to get it onto the bolts on the engine... Worst case scenario you might end up having to dremel one of the bolt holes a little if you get a badly made one, but thats about it.