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3.3T Magnaflow exhaust for G70

Toddasaurus

REEEEEEEEEEEEEEEE!!!!!
2,133
2,515
113
Portland, OR
Genesis Model Type
Genesis G70
Looks good! There's no issues removing the cats? Isn't there an O2 sensor or something in that area?
No O2 sensors after the secondary cats. Only after the primaries - as long as you don't mess with those you're good to go as far as emissions are concerned.

Originally I wanted HCF's to replace the secondaries because I was gonna install primary downpipes with HFC's - I was concerned about overboost, so I figured having 2 sets of HFC's would prevent that. But since that's not happening, I think this will work just fine.
 

Toddasaurus

REEEEEEEEEEEEEEEE!!!!!
2,133
2,515
113
Portland, OR
Genesis Model Type
Genesis G70
So I've lost track, what is your whole exhaust system made up of now? How much is/had to be custom made (besides tips)?

Stock primary downpipes. ARK midpipes. Magnaflow cat-back exhaust with custom tips. That's pretty much it.

Originally I had a set of HFC's welded in to the ARK midpipes, but they did a total noob job and they ended up leaking, so this guy cut them out for me and welded everything back together so now it's as if I never added the HFC's on the first place. I basically just wasted a lot of time and money doing that. 😣
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Husky

Registered Member
406
333
63
Genesis Model Type
Genesis G70
Stock primary downpipes. ARK midpipes. Magnaflow cat-back exhaust with custom tips. That's pretty much it.

Originally I had a set of HFC's welded in to the ARK midpipes, but they did a total noob job and they ended up leaking, so this guy cut them out for me and welded everything back together so now it's as if I never added the HFC's on the first place. I basically just wasted a lot of time and money doing that. 😣
Thanks. Well it looks great. I didn't see anything called midpipes on their website, just down pipes. Did I miss it?
 

Toddasaurus

REEEEEEEEEEEEEEEE!!!!!
2,133
2,515
113
Portland, OR
Genesis Model Type
Genesis G70
Thanks. Well it looks great. I didn't see anything called midpipes on their website, just down pipes. Did I miss it?

Midpipes = secondary downpipes.

ARK-DP0804-0118A_640x640.jpg


I call them midpipes because, to me, downpipes are the ones that bolt directly to the turbo. So you can call them midpipes, or even secondary downpipes. You'll see those terms used interchangeably for the G70/Stinger.
 

Toddasaurus

REEEEEEEEEEEEEEEE!!!!!
2,133
2,515
113
Portland, OR
Genesis Model Type
Genesis G70
I read that the biggest exhaust bottle neck is the primary dp and with just new plugs, 93 octane and a Lap3 Pro Tuner stock everything else you get the biggest performs gain for the money. 450WHP.that's good, right?
Yup, the primary DP's and the rear section mufflers are the biggest exhaust restrictions.

Primaries are a pain in the ass for those of us that have AWD. RWD is still tedious, but not nearly as bad as AWD. Ask me how I know.
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