Quote:
Originally Posted by 135Pats
If OP is not planning on tuning IMO leave the downpipes alone and get a good axleback. Better sound without the hassle that can accompany catless downpipes.
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+100000 I'd agree completely with this!
I have no secondary cats and a x-pipe instead of resonator with golf tee mod and I love the sound. If your cutting the resonator off please put a x-pipe In its place or a piece of pipe connecting both pipes in the resonators place (h-pipe). My car sounded like a farty civic with straight pipes instead of an x-pipe/h-pipe, especially when shifting. IMO cutting the secondary cats off made the biggest difference.
I just have to add down pipes and the sound will be perfect
good luck OP
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07 e90 335xi- Sold, 09 X5- Sold, 12 e92 335 xdrive - Sold 11 e92 M3- Sold, 15 M235-Sold,07 e90 335xi (current daily), 10 Atlantis e92 M3 (current) Way to many mods to list