Bob Krenn Posted August 8, 2023 Report Share Posted August 8, 2023 Thinking about doing the Nizpro flash that is suppose to add around 32hp. Just wondering if any owners have done this on a 24 to 26 foot pathfinder and what performance difference you saw with speed and mpg. Thanks in advance, Bob Quote Link to comment Share on other sites More sharing options...
Bamaskeet Posted August 8, 2023 Report Share Posted August 8, 2023 My gut feeling is 32 hp isn’t going to move the needle. Quote Link to comment Share on other sites More sharing options...
George Seither Posted August 8, 2023 Report Share Posted August 8, 2023 If 32 does move the needle I’ll be surprised, there are folks running flash programs hopefully someone jumps in Quote Link to comment Share on other sites More sharing options...
fin-addict Posted August 8, 2023 Report Share Posted August 8, 2023 not worth it. Quote Link to comment Share on other sites More sharing options...
tchauvin Posted February 8 Report Share Posted February 8 New here so posting just in case some are not aware,,,you will gain a little top end, likely not much. However, you will notice a good gain on bottom and mid. Best of all, the fuel burn is going to be noticeably better. I have three SHO's all retuned with same results, noticeably better fuel burn/economy. Quote Link to comment Share on other sites More sharing options...
jh141 Posted February 8 Report Share Posted February 8 Flashing My SHO 4.4l 200 made a 10 mph difference across the board. The fuel mileage is much better. Flashing a 4.2l 300 is not going to give you much. Now doing the Nizpro Super Charger 450s would press you in your seat. Quote Link to comment Share on other sites More sharing options...
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