Quote:
Originally Posted by b1mmerbob
hello folks, just was wondering a few things.
1. there are 2 sets of catalytic converters on the 2011 35i, right?
2. will anything happen if i delete one set?
3. which mods are recommended to have installed before installing a meth kit?
thanks for reading, any info is greatly appreciated!!!
-bob
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1 - Yes, one set is right before mufflers, and the others are attached to down pipes.
2 - I have deleted the rear ones, the sound has changed quite well but dont feel any power gains.. if you purhcase the dp without cats , you would see much better performance gains and throtier exhaust note, not raspy at all.
3 - I think before jumping into a meth system, you should get the air intake, dp, tune and new intercooler / the one that we have is very tiny comparing to aftermarket ones..