vmaxpro

Ive got a 08 5.3 nnbs and a p1sc coming can I use the maf as a blow thru? Can you sd tune these trucks? Thanks

George C....

Yes make sure to install maf in 4" tube

FetzerValve

George, is that the case with all FI builds on NNBS trucks? I'm putting a turbo on my 6.2 and was told by my tuner that MAF placement is important. Should I be stepping my intercooler piping up to 4" by the throttle body for the MAF or will putting it in a straight section of 3" pipe be OK?

George C....

my 2010 is also going under a turbo build matched with a 6.2 lol

yes with a slot style maf it should always be placed in a 4" or larger tube, when i was procharged i went 3" and i maxed the maf out very early around 8 lbs as it exceeded the flow rate

for my truck im using a 3-4 reducer coupler off the intercooler and running 4" from intercooler to TB
turbo to intercooler is 3"

usually i went a 3-4 aluminum transition on the intercooler but i dont have that room on this build

4" tube will give your maf alot of range

vmaxpro

On my 08 the maf isnt a bolt down looks like an o ring. So your saying my factory housing isnt ok to use?