Exhaust Manifold Thread
I love the RNR one.. 
Sep 21, 2004, 12:40 AM
#34
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Ryan at RNR is making up a new endurance manifold... braced and non- load bearing thickwall 321 ss. Designed for abuse at the track. Should have the prototype tomorrow. Made so you can fit a 3" wide monster radiator on the car...
Sep 21, 2004, 12:44 AM
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Originally Posted by gt40
Ryan at RNR is making up a new endurance manifold... braced and non- load bearing thickwall 321 ss. Designed for abuse at the track. Should have the prototype tomorrow. Made so you can fit a 3" wide monster radiator on the car...
Oct 3, 2004, 09:14 PM
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Originally Posted by ez76
Have also been told the DNP is 304 and has a 1-year warranty
I hope the evo8 manifolds hold up better
Dec 2, 2004, 07:02 PM
#44
Old news... they used to be (use) complete, thin wall, mild steel SHlT... then they went on to sell some really crappy stainless. The Evo offering seems to be much heartier (the SR20DET's seem to be pretty good these days too). I'm really trying to kill this thing with heat cycles in the cold rain for my own reasons. I thought the 38 degree rain, with the header glowing would be a good short term test. However, no failure yet. I really don't know how many miles I have on the manifold at this point though. As I said before, if it only lasts a year, I've gotten my money's worth for what I paid for it anyway.