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I used RennAire products on my '84 Carrera a few years back, but went with Griffiths on my '72 just a couple months ago. Either supplier's products will do the job, but I've found the Griffiths to be a little nicer finished, slightly better fitting, and the kits are far more complete with great instructions.
The thing I liked least about the RennAire offerings were the barrier hoses. RennAire hoses are reduced diameter hoses. This makes them lighter, and slightly more flexible. But because they are smaller OD than the originals, none of the original retainers fit them correctly. Getting the hoses secured to the body properly was a real pain. The Griffiths are the larger standard size and all the original fitting hardware still works.
Hose replacement is still a pain, but on the whole the entire upgrade project went much smoother with the Griffiths parts.
After having done this twice, once with each supplier's product, if I do it again I will use Griffiths.
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2018 718 Cayman 2.0
Priors - '72 911T coupe, '84 911 Carrera coupe, '84 944, '73 914 2.0
Last edited by Arne2; 09-12-2021 at 05:23 PM..
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