This is a 409 STAINLESS 3" mandrel bent siamese design crossover that will improve horsepower by 10-15 while improving mid-high torque. Bolts to stock manifolds and exhaust.
Vehicle Application(s)
This product fits the following models and years
Model
Year(s)
Mustang GT 5.0L
2011 2012 2013 2014
Boss 302
2012 2013
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