It's not a 44 hp gain, it nearly 100hp according to the OP. These cars put down roughly 260rwhp stock, so to get anywhere near 350rwhp you would need a turbo or supercharger. It's not possible to do that with a tune or intake, exhaust etc.
Funny as I can't find anything for Takeda Stage 5 CAI on the web.
The Stage 2 Takeda CAI will give you 13 rwhp, and 11 ft. lbs. of torque, and that is according to Takeda. If no dyno sheet, then the claim is BS. Also mods that give you certain HP are not added together to get the bigger number as in CAI - 13 rwhp, Cat-back exhaust - 25 rwhp, Tune - 50 rwhp doesn't mean you get the cumulative HP effect of 88. That is what a dyno is for, to give you exactly what the combination of all three mods are in total HP.
US Navy Vet
2015 RC 350 F-Sport
1965 Ford Mustang Custom Fastback
Last edited by GearHeadPeter; 09-16-2015 at 06:41 PM.