A 6.0 litre LQ4 is being built to drop into the 7, but until that time comes I would like to squeeze a bit more out of the stock rotary (3rd gen rx7).
I know that before you get to crazy with exhaust, intake, and intercoolers, its important to up the fuel as well. If I were going to add a full length exhaust, from the turbo back (same as downpipe, midpipe, catback, without the cat), an intake pipe and filter, and say possibly a FMIC with hardpipes, would an aftermarket fuel pump and rising rate fuel regulator be sufficient?
A larger oil cooler would also be added.
I don't want to stress or max out the stock twins, just free up the system and let it breathe eeeasy.
Also, what sort of rwhp would these mods result in? possibly 300?

Thanks guys

 

Free up the breathing and put in a FPR, and you shouldn't need a new fuel pump, unless you really want to. It's definitly not going to be running on full blast with just intake and exhaust. You wont stress the turbos with mild bolt ons. The car should be able to handle the extra bit of power with the stock injectors. You just need to avoid running them higher than 60-70% duty cycle. Don't forget a downpipe. No point opening up everything and leaving a smaller pipe right in the middle. Couldn't make a guess as to power output afterwards.