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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Need help altering my exhausts volume/note



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      02-27-2017, 03:13 PM   #1
aaron_
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Need help altering my exhausts volume/note

So up until 3 weeks ago I had a Remus race axle back, with the rest of the exhaust being stock. Loved the sound.

Now I have a catless dp, custom 3" mid pipe with 200cel high flow cat in it and the Remus race. It's way too loud and the note is deeper

How can I get the Remus axle back only sound whilst keeping the catless dp. I'm in the process of a custom tune from Justin and absolutely love the power so don't really want to remove the dp

Was thinking changing the mid pipe back to twin 2 1/4" and maybe adding in a vibrant resonator http://vibrantperformance.com/catalo...1527_1032_1055


How would the mid pipe work? I have a 3" inlet and outlet hfc in it now, do I add a 3" in and out resonator and split to twin 2 ¼" after, or is there a way to add two cats in each 2 ¼ " mid pipe and a resonator in each? Or is that doubling everything and going to make it very restrictive

The Remus axle back must remain though

Looking for some advice, as I have no idea about this stuff
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      03-01-2017, 11:42 PM   #2
aaron_
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Bump for help :-)
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      03-01-2017, 11:44 PM   #3
aaron_
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Another option is catted high flow dp (probs vrsf), back to standard size twin 2 ¼" mid pipes with a vibrant bottle resonator (either 12" or 18" depending on what fits) in each mid pipe.

Would go vibrant ultra quiet resonators however they have a 4.75" body and will reduce the ground clearance by too much.
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      03-02-2017, 07:21 AM   #4
Johnny Boost
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Remove the Remus and put the stock exhaust back on.
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