BMW 3-Series N55 Turboback Exhaust

$ 1,945.00

Availability: Ships in 24 hours
Product Code: 5B1301

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The COBB Tuning Turboback exhaust for your 3-Series BMW. Bolt-on installation of these components offers excellent power gains, outstanding build quality and an impressive exhaust note. The Turboback includes: COBB 3" SS Downpipe, COBB 3" SS Cat-Back Exhaust

Not compatible with 3-Series Convertible vehicles.

or select individual components and add to cart.

BMW 3-Series Cat-Back Exhaust System

BMW 3-Series Cat-Back Exhaust System

$ 1,295.00
Availability: Ships in 24 hours

BMW N55 Catted Downpipe

BMW N55 Catted Downpipe

$ 850.00
Availability: Ships in 24 hours


The COBB BMW 3-Series Turboback Exhaust combines COBB's N55 Downpipe with COBB's 3-series Cat-back to bring unrivaled performance. Designed to fit your 2011 335i Sedan and 2011-2013 335i Coupe. The exhaust is feed through a 200 cell high flow catalytic converter to a single 3" pipe that splits to 2 2.5" pipes within the muffler to exit your vehicle. Unmatched in performance, OEM fitment, innovative engineering and outstanding craftsmanship. Buy a COBB BMW 3-series turboback exhaust for your car!

BMW 3-Series N55 Turboback Exhaust
  • 2.5" & 3" 304 Stainless Steel Construction
  • Helmholtz Chamber to Reduce Resonance
  • 200 Cell High Flow Catalytic Converter
  • V-Band Clamp Connections for Infinite Adjustability
  • 4" Slip Fit Tips In Order to Customize Tip Placement

Customer Photos

BMW 3-Series N55 Turboback Exhaust is rated 4.9 out of 5 by 8.
Rated 5 out of 5 by from Incomparable quality When shopping for a catback I was torn a few different ways between choosing what brand was right for my taste. After extensive research I went with the Cobb catback for a multitude of reasons - weight savings, V-band, Helmholtz chamber, Y-pipe merging to a single 3" back, Single in dual out muffler, Clamp on tips (so I can move into quad tips if I ever wanted to switch aesthetics), etc. Upon opening the box I was more than excited, as the quality of the product mirrored Cobb's customer support. It was flawless! The quality of the welds, and the finish of the piping/muffler was top notch. After installation I was ecstatic to hear the tone of the exhaust paired with catless downpipes. It's just enough rumble to please the ears without rattling your neighbors windows on cold starts. It's quiet when you want, and throaty when you're on it! Paired with an accessport, this exhaust will not disappoint. Overall I'm super pleased with this purchase and I'll be dealing with Cobb more from here on out!
Date published: 2016-07-15
Rated 5 out of 5 by from Catback exhaust on my 2008 335i Touring I just have my catback exhaust system installed on my BMW 335i Touring, it fits, no problem. And with the adjustable tips you make it look perfect. The package is big, and traveled half the world to come to me, everything in the box was carefully wrapped and secured, so no damaged items. The sound is beautifull, just that bit more agression in it, not to loud and now you hear the turbo's even better. I am very happy with the quallity of the product, nice welds and solid material.
Date published: 2016-02-05
Rated 5 out of 5 by from Awwwesome! Had this Cobb exhaust for like 2 months now on my 2010 BMW 335 I xdrive coupe. The sound from this product is just perfect for me. Its not to loud when I start up 5AM to go to work. When u shift gears it has such a nice sound to it. When u get on it, it sounds so cool from a distance. Puts a smile on my face every time I take off at a light . I do notice a little more performance. I do have dual intakes, air scoops right now. Also brings out the stock twin turbos in the car. Overall your paying more for the awesome sound, craftsmanship and looks in my opinion. Hands down just get this product.
Date published: 2017-02-05
Rated 5 out of 5 by from Sounds awesome, no smell I've had this for about three weeks. The install went pretty smoothly with my mechanic saying the fitment was about a 8.5 out of 10 compared to OEM. With stock exhaust this is LOUD at start-up but settles into a nice rumble after initial warm up. Idle and coasting has almost no droning even in my convertible, but when I get on it it sounds like a F1 car! I love the rumbling and popping at low revs when coasting to. I don't really notice the faster spool up of the turbos but I've been tuning at the same time so it's hard to tell. I notice no smell which is good since that's why I went with the catted DP in the first place so for me the cost was absolutely worth it since I can't smell it even with the top down stopped at a light. Customer support was top notch too when I called about the gaskets (you reuse the OEM ones).
Date published: 2016-04-10
Rated 4 out of 5 by from Solid product!! 2011 335I N55... delivery was prompt/fast! unboxed the downpipe,no hardware! called Cobb,they were very proffessional and expedited the new hardware! set back installation a day and a half,no problem. i did the install myself in my garage,with jackstands. not the easiest of jobs but it can be done! $400.00 was the average install price around town. i was a little disappointed with the hardware that came with the downpipe,i was expecting better quality. the hardware that was sent had to be altered/grinded. the flanges on the bolt/nut were too wide to install on the exhaust pipe side of the downpipe. i didnt think about it at the time but i could have used the original hardware/nuts. other than that ,good product. i will be purchasing my Accessport soon and put all these after market parts(High airflow intake,FMIC,chargepipe,downpipe)to use!
Date published: 2017-06-18
Rated 5 out of 5 by from Cat Back Exhaust (COBB) Cobb does a great job with superior craftsmanship and engineering. Always a good bet with these guys. The exhaust sounds great when your on the throttle and the performance is an improvement with about 18 lbs less weight.
Date published: 2017-12-07
Rated 5 out of 5 by from Exhaust It's beautiful. Installs easily. A little quiet than I thought but it still sounds decent.
Date published: 2019-05-08
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