GrandPrix34 Posted July 20, 2004 Report Share Posted July 20, 2004 If so then the inner flow path of teh downpipe is really 2.25...which suxs! I am thinking of upgrading the downpipe as soon as it is confirmed that it is infact doublewalled. If not, well then it stays! Quote Link to comment Share on other sites More sharing options...
sl3196 Posted July 20, 2004 Report Share Posted July 20, 2004 Mine is, not sure about yours. Go to a 3" one anyways! Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted July 20, 2004 Report Share Posted July 20, 2004 Mine is, not sure about yours. Go to a 3" one anyways! He doesn't need a 3'' on his 3.4, 2.5'' actual inner diameter would be ample. Quote Link to comment Share on other sites More sharing options...
GrandPrix34 Posted July 20, 2004 Author Report Share Posted July 20, 2004 so...is it double walled? lol Quote Link to comment Share on other sites More sharing options...
manitcor Posted July 21, 2004 Report Share Posted July 21, 2004 not that im aware of, only the the manifolds are cast, everything else is just mandrel bent steel, then I havent had a stock DP in over 2 years sooo... Quote Link to comment Share on other sites More sharing options...
GPXSS Posted July 21, 2004 Report Share Posted July 21, 2004 3.4dohc no 3.1, no 3100, yes Quote Link to comment Share on other sites More sharing options...
brian89gp Posted July 24, 2004 Report Share Posted July 24, 2004 The 3.4 downpipe is 2.5 ID all the way to the cat. Quote Link to comment Share on other sites More sharing options...
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