No, it won't affect performance; too far down stream.
Do you know what type of material the smaller pipe is made of. If it's regular steel you can potentially have rusting issues down the road.
Also, looks as if he just tack welded the tips on.
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'13 370Z Midnight Blue 6MT / Touring Sport w/nav / PPE Long Tube Racing Headers / FI TDX 10" Resonator w/CF mufflers / K&N Drop-Ins / ZSpeed Underbody Shroud v2 / DRL 'always on' Mod
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