header problems
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Junior Member
Joined: Mar 2013
Posts: 7
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Car: 1986 Pontiac trans am
Engine: L69 305 H.O.
Transmission: Norg werner T5
header problems
I'm ordering a set of shorty headers flowtech 1 and it says i have to Modify Stock Exhaust To Retain Catalytic Converter? and i don't really know what that means or what that involves and needing a little help because my cat is cut out and i have a 3" pipe wielded in to replace it so i need to know what to do now?
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Joined: Jul 2009
Posts: 1,354
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From: morrow, ga
Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: header problems
I'm ordering a set of shorty headers flowtech 1 and it says i have to Modify Stock Exhaust To Retain Catalytic Converter? and i don't really know what that means or what that involves and needing a little help because my cat is cut out and i have a 3" pipe wielded in to replace it so i need to know what to do now?
Thread Starter
Junior Member
Joined: Mar 2013
Posts: 7
Likes: 0
Car: 1986 Pontiac trans am
Engine: L69 305 H.O.
Transmission: Norg werner T5
Re: header problems
ok thanks i been trying to order a set that comes with a y pipe from o'rielys but it says the same thing on it
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