fx4_soldier

Ok heres a question. I run an exhaust cutout on my truck and the weather here in Missouri is getting pretty cold. Qustion is, can running this cutout harm my engine when my engine is hot and the weather out side is cold will it harm it after i turn the truck off?

SLS

I Live in texas and i know we have nowhere near the winters yall do, but before the super bowl it was -7 to 15 degrees for a good 10-14 days and mine started up fine and stills runs like a champ so u should b ok and I appreciate what you do.

JLindsay32

It shouldn't really affect anything due to temperature. The only downfall is less back pressure, therefore less acceleration. I ran mine for about a year with no problems, I just couldn't stand people beating me with a quicker accel so I cut it out

otto457

Please read this: https://www.f150forum.com/f11/exhaus...re-myth-78102/ thanks


Besides sounding like a ticked off lawnmower, there shouldn't be any problems. Just don't put it too close to the front to have enough pipe to maintain scavenging. About a foot in front of the muffler is a safe place.

JLindsay32

I'm going solely based on personal experience, not dynos, track times, etc. When I had my exhaust cut out, I had much slower acceleration, I had no engine problems or complaints other than the rear passenger floor board heating up. I sealed my exhaust back up, and I immediately felt better acceleration. Regardless of what anyone else says, that's what happened to me. The article was very interesting though, thanks for the reference.

otto457

Not disagreeing that happened. Just making sure the facts behind real cause was realized. Don't feel like I singled you out, I do it to everyone who uses the B word.

JLindsay32

haha not at all man, maybe back pressure wasn't the true cause, but something from the cutout did it.