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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Downey Header Question?

Old May 27, 2008 | 06:35 PM
  #1  
Strings's Avatar
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Downey Header Question?

Does anybody know how big the collector is on Downey 3.0 Headers? I figure I'll just run my whole exhaust whatever size the collector is.

Strings
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Old May 27, 2008 | 06:38 PM
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Did you call Downey? Those guys are pretty good to talk to.
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Old May 27, 2008 | 07:46 PM
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I am 90% sure it is either 2" or 2 and 1/4"
I ran 21\4" all the way back and i like it. I just wrote big reply w pic to another similar question, should be easy to find if your interested.
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Old May 28, 2008 | 07:07 AM
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I am 90% sure it was 2.5" on my 3.0 Downey headers.... I know they are 2.5" on my Downey 3.4 headers.
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Old May 28, 2008 | 10:04 AM
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I was kind of hoping to not have to call Downey until i order the Headers. Thanks benwahballs and Elvota I appreciate your guys help but can either of you say 100% what size the collector is?

Thanks
Strings
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Old May 29, 2008 | 07:07 AM
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...Bump
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Old May 29, 2008 | 07:14 AM
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This guy used 2.5" exhaust with his Downey headers:
http://staff.4x4wire.com/swilson/mods/
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Old May 29, 2008 | 06:32 PM
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Thanks for that.
Strings
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