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      11-20-2018, 01:52 PM   #8
LcossE82
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Drives: 2013 BMW 128i
Join Date: Oct 2018
Location: Bonita springs, Fl

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Quote:
Originally Posted by Japresto91 View Post
Quote:
Originally Posted by LcossE82 View Post
I say put muffler on and give it a week or two to see if the idle surge goes away.
Is the 135i muffler with this setup tolerable? I am not TOO concerned with the idle surge but it is a factor of decision in the end. Mainly just trying to figure out how loud I should expect to be if I went the 135i muffler route with catless headers I believe the stock resonator/resonators are still there but I also didn't install the headers so I cant be sure without raising the car. I appreciate your time!
The 135 muff should quiet it out a good bunch but, you've got cat less headers! But, assuming you put the muffler on, it would be beneficial to try and connect the valve system in the muffler that opens after 4K rpm( or 3k not sure). And if it's still not what you want you could either put the stick resonators in or Find a high flow res, (not sure where to find one lol)
Appreciate 1