Downpipes

[I Bleed Ford Blue]

Do I need to retune for downpipes? I already have a ZFG 93 tune and I'm thinking about getting the whoosh downpipes while they are on sale this weekend.

 

[2020FordRaptor]

Do I need to retune for downpipes? I already have a ZFG 93 tune and I'm thinking about getting the whoosh downpipes while they are on sale this weekend.

You don’t need a retune. It’ll help and take advantage of the purchase of the downpipes, but it’s not needed. Adam’s tunes also adjust themselves to different parameters if they’re changed too, aka extra air flow. The adjustments without a retune won’t be a lot, but a tiny little adjustment.