Here is a pic of what a 3" A/C compatible downpipe needs to look like. The one on the right is Flaco's 3" DP for his SFP manifold which is very close to where a drag positions the turbo. The one on the right is a 2.5" to 3" that was for a d series with a turbonetics manifold.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.