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Lb7 intercoolers and wastegate adjustment
My 03 LB7 with a magnaflow 4", edge Attitude, and AFE stage 2 with a Banks Big head, pulls 25 psi of boost in 4th towing a steep hill at 2500 rpm. It tows great at 70 mph and gets 15+ us MPG towing. between 1500 rpm and 1800 rpm the torgue seems real weak pulling any kind of a grade. I emailed banks but got no response. Should I crank up the Big head to improve torque in that range.
My second question is I am starting to hear that aftermarket intercoolers make a big difference, in both power and mileage. can someone tell me thier experiences with the larger intercoolers. 1700 bucks is a large amount and I am hoping to find out how much difference it makes. Second question do they just benefit during towing or all the time given the cooler air going in.
Thanks
TG
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