Custom Catback or Custom Axleback? Aero Front Lip?

[SamBlon]

Hey - going monday to get either a custom catback made for $1600 or a custom axle back for $550. Either one will be made by a reputable performance exhaust shop in Michigan.
Is the catback worth the extra expense? Am i going to get noticeably more power WITHOUT doing a tune? I don't want to tune it for another year as I have a CPO Wrap and don't want to have it voided. I will not be doing any other mods other than exhaust until the warranty runs out.
Which one makes more sense?

Also anyone know where to get the front aero lip kit? Its "back ordered" at my Infiniti dealer for 8 weeks but they said that even though its back ordered it might not ever ship as it could just be discontinued at this point. My part number would K6010-1CA6B for the black obsidian

2015 QX70s

 

[la_fx35]

Are you sure that part number is for black obsidian? I order my kit a few months ago. K6010-1CA3B is the black obsidian front aero lip that I have on my QX.

I installed the ARK GRip catback. It definitely feels less restrictive and adds exhaust note. There is a bit of but dyno gain for sure, but would not feel a noticeable gain as is without a tune. Personally, for $1600 I would go for the ARK GRip when it go on sale. I like see your custom made if you do go that route.

 

[SamBlon]

Good call on the part number, thanks. I’ll see if the dealership can source that one