
Good. I doubted this product. I wasn't sure if I would notice a performance difference on my Dodge Magnum 3.5 HO. However, if you install a Cold Air Breather (K&N) and performance exhaust system (Corsa) and install a 180F thermostat, buy this Stage 2 module. I immediately have more lift, smoother shifts and slightly better mileage. I find it works really well but you must have all the necessary details.

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