Header and Cat project issues
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Senior User
Joined: Oct 2006
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From: SE of Bennett Colorado
Header and Cat project issues
89 F250 4.6/7.5, reg cab, 4x4, everything is still stock.
Uh oh, what have I done?
I got some Headman Headers (no need to preach about your favorite brand of headers here) and a new high flow single-in/single-out Cat to install.
First Question: Since my very old busted-up Cat has the 4-bolt inlet attachment, how do I attach my new Cat that has a 2.5 inch pipe for the inlet? Cut the inlet of the old Cat off to 'splice' the new one on?
I have a new Cat-back exhaust sitting in the box to install too which expects 2.5" Cat outlet so I should be good there.
Second question: should I, or do I need, new pipes from the headers to the cat?
I'll be taking the exhaust manifolds and pipes off before I do the oil pan and rear seal, but I'd like to have the right plan and 'stuff' in place before demo.
Thanks in advance!
Uh oh, what have I done?
I got some Headman Headers (no need to preach about your favorite brand of headers here) and a new high flow single-in/single-out Cat to install.
First Question: Since my very old busted-up Cat has the 4-bolt inlet attachment, how do I attach my new Cat that has a 2.5 inch pipe for the inlet? Cut the inlet of the old Cat off to 'splice' the new one on?
I have a new Cat-back exhaust sitting in the box to install too which expects 2.5" Cat outlet so I should be good there.
Second question: should I, or do I need, new pipes from the headers to the cat?
I'll be taking the exhaust manifolds and pipes off before I do the oil pan and rear seal, but I'd like to have the right plan and 'stuff' in place before demo.
Thanks in advance!
