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: Its obvious for the reasons previously stated that yes the downpipes will be better. But to make the statement "WAY" better, I wish someone could back up these claims. Tell me, are they $400 better than gutting the pre-cats (which are a free mod)?? : Thanks. : : even gutted, the precats are still restrictive because of the design of the openings and the sharp bends they take. downpipes have smoother bends and have a constant diameter all the way throughout to allow more flow. : : : I need to know if Downpipes are the same performance as gutted PRe-cats on a TT? > there is such a huge difference in diameter and flow that there HAS to be a diffence in performance. I would say the difference should be more noticeable at higher boost settings and larger turbos ie more airflow. At say stage 3 or so I bet there isnt a whole lot of difference between the two, but once you start really flowing some air, the downpipes have to make a big difference...as you look at the two designs just imagine water flowing through them and imagine which would allow more water to flow faster through it...
TWINZ has...
1990 TT 5spd Stillen Stage X+
1999 Maxima SE 5spd |
