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So one with welded seams was from s4, one without was from s6 auto
Different size pipes and longer turbo section on s6
Any particular reasons for the design differences?
One flow better than other?
Diameter at head sides are same for each one
OE 3B, AAN, ABY and ADU Exhaust Components: a consolidation of info.
Originally posted by bluequattro
So one with welded seams was from s4, one without was from s6 auto
Neither of them have welded seams. Its all just casting marks. As suggested the one on the right is an RS2 or RS2 clone manifold.
OE 3B, AAN, ABY and ADU Exhaust Components: a consolidation of info:
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RS2 manifold on the top. 3B, AAN (UrS4 and UrS6), and ABY manifold on the bottom (Note how cylinders 1 and 5 are handled in the two different examples):
RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avant
the right one is probably a replica rs2 manifold,i"v sold one to andy in the past
but there are many replica's on ebay,different brands,mine came from arlows
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