Heelfan1
Full Access Member
My guess is that when the reputable tuners get their stuff together on these a normal tune gain will be in the 60 to 70 hp range and 80 to 110 lb/ft gain levels. 5star looks to already be in this area along with others. That's what the gen I eco platforms are seeing already and then some. With the GEN II port and direct injection and better turbos I wouldn't be surprised and basically expect those numbers to be considerably higher with time and testing.
The GEN I's are considered to handle 500+ hp before any dependability issues come into play. These numbers are with the stock turbos. Heck my SHO is in the 440 hp range at the crank and I'm not pushing it and that's without ****. There are a couple of SHO's pushing 600 hp with bigger turbos and **** and the weak link is the transmission. Also whats impressive is this thing will knock down 30 mpg on the hwy (keeping below 80).
The GEN I's are considered to handle 500+ hp before any dependability issues come into play. These numbers are with the stock turbos. Heck my SHO is in the 440 hp range at the crank and I'm not pushing it and that's without ****. There are a couple of SHO's pushing 600 hp with bigger turbos and **** and the weak link is the transmission. Also whats impressive is this thing will knock down 30 mpg on the hwy (keeping below 80).