Yeah except there’s two different things that need to be said here. Racing vs street driving.
Racing you’ll spend most of your time in the upper tom range which is where you would want that greater flow and less back pressure.
normal street driving where ppl rarely see above 3500 rpm you will lose low end torque on an otherwise completely stock or even tuned vehicle since you have none of that back pressure. All your HP gains will be top end but you don’t drive top end on a daily driver as normal driving. So there are times when it’s advantageous. A solid setup would be upgraded IC and pipes, CAI (closed box), catted hi flow DPs and turbo adapters, and a straight through design 3.5” DP back exhaust with a resonator on these trucks for maximum air flow efficiency. You can change DPs but until you change the amount of air coming into the truck, there’s really no point in changing the amount of air leaving due to the whole back pressure thing and loss of low end power. And to top it off, to pull the gains together you’ll need a solid tune. I personally stay away from every 3 letter tuning company. I have read and seen evidence and experiences from SSI, BCB, ZFG (yeah ray I said it) that turn me away all the time from even trying them out
MPT is a 3 letter name. Are you saying Muddy shouldn't use them. Have you used them and have experience with them?
5 Star could be abbreviated to 3... 5ST. HaHa, couldn't resist.
Man, You REALLY need to stop drinking the CoolAid.
How many motors have you worked on or actually built in your life?
REALLY don't want to get in a ******* match with you. But I know WAY more than what I read on the internet. Been around tuning for 20+ years, and working on Motors for 25+. I actually used to tune diesels.
Your argument that you have to increase air in for the change in DP's to help is SO flawed I have no idea where to start. Let's just start with heat...It is about getting the hot gasses away from the motor. There is NO aftermarket intake for the Explorer ST, yet adding the SPD Downpipes has allowed tuners to dial in more power. Why? Because the better flowing exhaust is allowing heat to leave and get away from the Turbo's lowering EGT's. Same deal on a Diesel. The power band might move slightly, but you are NOT going to lose any low end like on NA Motor. It definitely is not going to cause you to have to keep it above 3500 RPM's to get power.
