Noelle or Fabspeed catted downmpipes

[E39TOF10]

Only want to do one or maybe two mods to my car. What the big difference between Noelle and fabspeed downpipes. If I remember correctly, Noelle is 400 cell and Fabspeed is 200 cell but is that going to make a big difference>

[TheHouseWon]

You already have high flow catted downpipes

[E39TOF10]

I thought stock was 1000 cell?

[TheHouseWon]

Originally Posted by E39TOF10

I thought stock was 1000 cell?

Catted downpipes won't add noticeable power, but catless will. If you're doing cats, it's cheaper and more effective to go catless (for offroad use, of course) or just spend the money on a tune.