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Re: TR3A/TR4A exhaust systems interchangagbility

To: TR <>
Subject: Re: TR3A/TR4A exhaust systems interchangagbility
From: Geo Hahn <>
Date: Wed, 10 Nov 2004 19:16:57 -0700
References: <003801c4c787$90b35240$a2a33745@default>
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
Paul Dorsey wrote:

>1. Will a TR3A's exhaust manifold fit a TR4A engine? Why not?
I think the TR3A manifold would bolt up to the to the head of the 4A but 
what exhaust system would you then use?  The 4-into-1 header from the 
'3A will be looking for the '3A/4 headpipe and exhaust system.  That 
system is rather specific to the 3 & 4, especially where it passes thru 
the cruciform.

>2. Why is the TR4A's exhaust system superior to a TR3A's?
Certainly different, wasn't aware that it is superior.

Geo Hahn
59 TR3A
64 TR4
Mt Lemmon, AZ

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