This is amazing, I’ve had my 02 f250 for 13yrs have the bullydog gt triple tuner and banks monster exhaust (turbo back) and have never felt a safe power increase like this. I had turbo surge pulling my trailer uphill last weekend and knew I had to change out the stock one, meanwhile the wife is telling the kids I need a new truck, I don’t and this proved it to her and me. It feels like I have another 100hp, I don’t but what an amazing and cheap addition. I feel it’s close to my brother in law’s 2017 lariat power now. No surging and constant quick spooling and power. If your truck is sluggish or struggling try this!