Peak gains of 25 horsepower at 5500 rpm and 70 lb-ft at 2200 rpm ... 2.3L ECOBOOST 70MM BILLET THROTTLE BODY. ... 2015-2016 6.7L DIESEL TURBO KIT. Alright so right now I am saving up to boost my 04 GT. I am going back and forth between on3's 70mm rear facing kit, and piecing together a used vortech kit. Here are my pros and cons for both. On3permance 70mm single kit: On 3 Performance - Turbo Kits for Ford Mustangs Pros: Not always in... Which species is larger in each pair_ i) o2 or s2 ii) fe2+ or fe3+ iii) k or k+