Gains with LT Headers

[bunk22]

This is my last dyno with my BBK 1 3/4" headers, off-road, JLT and tune, SAE corrected. My car is an auto with 3.55 gears and I know he can't do 5th gear runs on manuals so I don't know how that affects the auto's, if at all. His dyno is a dyno jet, he has issues with slipping (thus the humps in the curve) and puts no fan in front of the car. I'm not so concerned with that as I am with the tuning, making sure that the car runs solid, no issues. It's a tuning tool so my gains could be more or even less depending on the dyno and how it's set-up. The car runs great, no issues that I've seen, at all. An E85 tune is next. Of course I never did a stock dyno so I don't know what the gains are with the headers alone. I assume gains are as others have said and I didn't go with top of the line headers like I have in the past, BBK isn't Kooks IMO.

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[bunk22]

Want from 391HP to 428HP with MBRP Catted Headers. 2015 A6 GT.

What was the SAE correction? Smoothing of 5 as well, less bumps in the graph.

 

[jayman33]

Dont always think of just peak HP gain but gains throughout the powerband. we run ARH in all our cars and have had great luck with them as well. Also, what catback are you currently running? Are you wanting catted or off road?

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