Impulse buy: 2015 Fiesta ST

[Senor_Taylor]

how much power do you leave on the table going back to a stock catback? i've heard a good compromise sometimes is doing an aftermarket downpipe + cat and leaving the catback or axleback alone so you get the majority of the gains but less of the headaches.

Exhaust isn't needed until "stage 3" as the stock exhaust is fine.

The reason I got the cheapest reputable catback I could was because the dealer welded a SMALLER than stock diameter muffler on because they're idiots.

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