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x Spades x · 03-30-2022, 04:35 PM

Hey Everyone

I have an xpipe with primary HFCs and dual resonators (forward x). I have low end rasp that I was to get rid or, but love the tone of the exhaust currently. Adding two more resonators (quad) may deepen the the tone some, so thinking of welding in two more HFCs (total of 4).

My question is, if I'm currently on a Stage 2 tune, will adding two more HFCs push me down to a Stage 1 tune? Are four HFCs (200 flow) the same as the OEM 400 cell w/ 200 cell secondary?

03-30-2022, 04:35 PM	#1
x Spades x Captain 232 Rep 636 Posts Drives: BMW E46 M3 Join Date: Feb 2020 Location: CT iTrader: (1)	Exhaust question: Resonators or cats Hey Everyone I have an xpipe with primary HFCs and dual resonators (forward x). I have low end rasp that I was to get rid or, but love the tone of the exhaust currently. Adding two more resonators (quad) may deepen the the tone some, so thinking of welding in two more HFCs (total of 4). My question is, if I'm currently on a Stage 2 tune, will adding two more HFCs push me down to a Stage 1 tune? Are four HFCs (200 flow) the same as the OEM 400 cell w/ 200 cell secondary?
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