Modern OEM cats seem to cost most engines just 3 hp... for the cost of a new downpipe with high flow cat, IMO, not worth the trouble. Maybe when the OEM cat clogs up or rusts out and needs replacing, OK.
But they didn’t compare the 2.3 EB cat with any of the available 3” mandrel bent cats. The Ford part is a restriction in the otherwise 2.5” exhaust, it isn’t mandrel bent so it might be 2” at the narrow passages. Just look at the comparison on any install video.
Pretty sure remember the performance facebook group mentioning the 3 inch downpipe with a full 3 inch exhaust is good for about 10 to 15 more HP. With both you'd be spending at least the same amount as a tune. While any tune would give you considerable more.
Remember that if you only focus on Horsepower, you will be disappointed all the time. You also have Torque to consider along with the fact the entire Power Band and not just the peak power point.
I agree, but a tune impacts both of those as well. A tune gives about 100 torque, a downpipe wont give that. Now that downpipe will defiently help open up the low end and high end of the power curve. Does not change that bang for buck a tune is the best for improving the ecoboost. Then that tune is only going to help increase the improvements of all the bolt ons.
That applies for any Engine, not just the Ecoboost.
Yep.
Keep in mind that the Tune alone changes the Torque Curve a bit and it is still best to use Tow Haul Mode both Stock and Tuned while Towing.
I know it's splitting hairs, but we were talking cat... stock vs high flow... not a bigger downpipe, etc. The point was that cat is NOT the power stealer it's made out to be. I'm sure the bigger pipe, mandrel bending, etc. WILL make a good bit of difference (it does on one of my cars). But cat alone, not so much.
