My pipes are all very tight up there as well. Seems normal. I’ve had a couple of pipe blow-offs that have necessitated cable ties at joints as well. Usually when the nozzles get blocked, and the joints can’t deal with the extra pressure. All the pipes are specific lengths....they have a little ballooned bit at each joint to hold the rubber 90 and t pieces on more effectively.
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2002 D2 S8: Ebony Black over Platinum. A8L Comfort front seats in black (  ), heated rear seats, extended Leather Pack 3, blinds, glass sunroof, MFSW, Dension Gateway 100 for iPod, ski-hatch, xenon plus, auto dimming mirrors, 20" FE wheels, billet aluminium 'brake block', gunmetal Brembo calipers 
2005 B6 S4 Cabriolet: Ebony Black Pearl over Silver. RNS-E, Bose, heated seats, cruise control, retrofit aux-in, centre armrest, Milltek resonated exhaust
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