How can you trust a dyno graph that dips to zero, and has gaps in the lines? Come on. Ther's a problem with that dyno run. I'm not saying the car won't make more power but that's pretty high. Another BIG issue I have is that when Injen tested a 3" cat back they saw no substantial gains. Why you ask. Because it still has a tight little S bend at the turbo, and 2 cats to blow through. That's the big restriction in these exhaust systems, the back section is acceptable for this power level. I'm running 350HP through a 2.5 inch on my Miata and the tests going to 3 inch didn't show any significant gains. 225-250 HP should be fine with the stock rear section, I'd suggest getting rid of the front section and both cats. There is power to be had in these things, but not that much with only those mods and seeing how erratic that dyno sheet is I wouldn't trust it.
A realistic dyno sheet, would show a stock curve, and then a fully tweaked curve so you can see the difference the mods gave, based on that dyno. With correction numbers being programmed by the operator you can make a dyno say just about anything. The true gain can only be shown by testing before and after on the same dyno.
A realistic dyno sheet, would show a stock curve, and then a fully tweaked curve so you can see the difference the mods gave, based on that dyno. With correction numbers being programmed by the operator you can make a dyno say just about anything. The true gain can only be shown by testing before and after on the same dyno.
