355i Stock Exhaust vs MPE

riquedp · 01-02-2014, 10:47 AM

Hello Folks.

I live in Brazil and have a F30 355i I've been thinking about doing some upgrades on my car, but as some of you guys already know, the prices here are crazy.

I am struggling to figure out a way to import a MPExhaust or an Akrapovic in order to start upgrading my car but it will arrive here costing 2 times more.

So I started wondering... What if i just buy a catless downpipe, intake and JB4 stage 2, how good the performance would be ?
How restrictive the stock mufler really is ?

mhanism · 01-02-2014, 12:14 PM

It's 335i Riquedp.

While the stock exhaust isn't the most restrictive part of the overall exhaust system, if you're getting a tune, intake and downpipe, getting a full cat-back exhaust system would most likely enhance everything by opening up the flow, and add a few hps (not to mention opening up the engine and exhaust sound/vibrations). Harder to quantify though, but I'd guess 8-12 hrs? In conjunction with everything else.

The MPE is only axle back, so not as free flowing as a full cat back would be.

Hope that helps.

01-02-2014, 10:47 AM	#1
riquedp Private 8 Rep 52 Posts Drives: 2012 335i Join Date: Nov 2013 Location: Brazil iTrader: (0)	355i Stock Exhaust vs MPE Hello Folks. I live in Brazil and have a F30 355i I've been thinking about doing some upgrades on my car, but as some of you guys already know, the prices here are crazy. I am struggling to figure out a way to import a MPExhaust or an Akrapovic in order to start upgrading my car but it will arrive here costing 2 times more. So I started wondering... What if i just buy a catless downpipe, intake and JB4 stage 2, how good the performance would be ? How restrictive the stock mufler really is ?
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01-02-2014, 12:14 PM	#2
mhanism Captain 277 Rep 807 Posts Drives: 2020 M2C Join Date: Jun 2013 Location: Irvine, CA iTrader: (0)	It's 335i Riquedp. While the stock exhaust isn't the most restrictive part of the overall exhaust system, if you're getting a tune, intake and downpipe, getting a full cat-back exhaust system would most likely enhance everything by opening up the flow, and add a few hps (not to mention opening up the engine and exhaust sound/vibrations). Harder to quantify though, but I'd guess 8-12 hrs? In conjunction with everything else. The MPE is only axle back, so not as free flowing as a full cat back would be. Hope that helps.
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