Compression Ignition Addict
Join Date: Jan 2013
Location: Whidbey Island, WA
Thanked 24 Times in 22 Posts
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I just installed a Flo~Pro 4" turbo back yesterday morning. It has the 4" down pipe, no cat but comes with a muffler.
So far with what little driving I've done (40 mile round trip to Home Depot) I noticed that I did lose just a bit of bottom end power but not so much as to make me regret installing the exhaust system. Interestingly I did notice that it seems to pull just a smidge harder in the mid-range to upper RPM's.
As for EGT's I need to do some more testing. There is a hill here where I always hit between 800*-900* unloaded without the A/C on and running the PHP Atlas-40 FICM tune. Yesterday it was really hot out and was running the A/C full blast and was seeing EGT's on that hill that were just over 800*. I want to retest it without the A/C a couple of times to see if my EGT's are lower. But so far I'd say I "might" be seeing lower EGT's of around 50* - 100*.
It's to early to tell if I'll see any change in MPG although I suspect I won't. I didn't install it for MPG anyway. I installed it for the sound and potentially lower EGT's.
And this system is pretty quiet at idle (you hear the whoosh of the turbo more but not so much the whistle) and on the highway. But once you put your foot into it hard then it has a really nice sound to it.
2006 F-350 XLT FX4 SCLB 6.0L | TTY head bolts | stock EGR and cooler | blue spring FP mod | PHP Atlas 40 FICM tune | ScanGauge 2 & GlowShift 3-in-1 gauge (Boost/EGT/FP) | PMM coolant filter kit | Flo~Pro 4" turbo back w/muffler | stock tune