SKU: 16355768255

COBB SS 3" Cat-Back Exhaust | 2010-2013 Mazda Mazdaspeed3

Sale price$447.75 Regular price$497.50
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Description

COBB SS 3" Cat-Back Exhaust | 2010-2013 Mazda Mazdaspeed3Mazdaspeed3 Gen2 Stainless Steel 3" Cat Back Exhaust by Cobb The layout of this COBB 3" SS Cat back was chosen to minimize the total bend degrees used to route the exhaust piping for reduced back pressure. The entire system fits within the factory exhaust path to allow the exhaust to be tucked up as close to the undercarriage as possible to achieve maximum ground clearance. Exhaust piping is 3" diameter from the downpipe to the split, where dual 2. 5"

Mazdaspeed3 Gen2 Stainless Steel 3" Cat-Back Exhaust by Cobb

The layout of this COBB 3" SS Cat-back was chosen to minimize the total bend degrees used to route the exhaust piping for reduced back pressure. The entire system fits within the factory exhaust path to allow the exhaust to be tucked up as close to the undercarriage as possible to achieve maximum ground clearance. Exhaust piping is 3" diameter from the downpipe to the split, where dual 2.5" pipes whisk the exhaust out of the system.

The resulting path of least resistance minimizes back-pressure for maximum power gains. Harsh engine exhaust noise is subdued via one primary resonator and one secondary resonator. These chambered resonators provide sound reduction without adding restriction to the exhaust flow. The resulting mellow rumble sounds and feels powerful, without being overbearing.

This exhaust was designed to meet the 95dB sound restriction even when used as part of a full turbo-back exhaust system. Significant effort went into making this exhaust look as good as it sounds and performs. Both resonators are custom built and finished with beautiful welds. The 2.5" and 3" stainless steel piping has a satin finish for a stunning appearance. The exhaust is finished with two 4" slash-cut, double-wall rolled tips with laser etched COBB logos. The entire kit is constructed of T304 stainless steel to ensure that it stays looking this great for years to come.

This cat-back exhaust will work with the stock or any direct factory replacement downpipe. The two bolt flanges allow slight adjustability for absolutely perfect fitment. Includes all gaskets and hardware, and uses the stock doughnut gasket to mate to the downpipe.

Features

  • 304 Stainless Steel for Corrosion Resistance
  • 3" to Dual 2.5" Mandrel Bent Piping
  • Dual 4" Double Walled Slash Cut Tips
  • Works with COBB, Stock and Direct Replacement Downpipes
  • Within SAE J1169 Sound Restrictions

Applications

  • 2010 - 2013 Mazda Mazdaspeed3

Benefits

  • Increased Power and Torque
  • Durable and Corrosion Resistant
  • Optimal Exhaust Tone

What's In The Box?

  • 1 - SS 3" Cat-Back Exhaust
  • Necessary Hardware

References

Warranty

  • Manufacturer Standard Warranty
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16355768255

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4.8 ★★★★★
Based on 25 reviews
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A
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Angel Aguirre
Whiting, US
★★★★★ 5
Why Struggle? It’s as easy as 1 , 2 , 3
Color: 14AWG-2 Lead
Love how simple the harness is! Bought this for a set of ditch lights for a 99 4runner. I love how much wire they give to let you run the wire to where it needs to go. 1st time buying and will come back for more in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
E
Verified Purchase
Eric W.
Pawtucket, US
★★★★★ 4
Quality but short.
Color: 14AWG-2 Lead
Quality built harness but I wish they would make the switch wireing long enough to go from the dash to the battery area on film size vehicles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
K
Verified Purchase
Kevin J Tully
Battle Creek, US
★★★★★ 5
Fit and easy to install
Color: 14AWG-2 Lead
Exactly what I needed. Price was a lot better then I expected. Easy to install. Nice find
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
B
Verified Purchase
Buyer
Whiting, US
★★★★★ 5
Great product
Color: 14AWG-2 Lead
A lot cheaper than getting wire, a relay, connectors, fuse, etc. Great durability, like the extra coating over the wires. Mounted the relays in a spot where they get totally soaked. They were sitting in water when I tested them out they works great so I’d say water resistant is an understatement. Overall great product.
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Reviewed in the United States on October 24, 2022
A
Verified Purchase
Amazon Customer
Whiting, US
★★★★★ 5
Makes wiring lights faster and cleaner
Color: 14AWG-2 Lead
Harness is well insulated and much easier to use than running wires separately. I’ve installed 2 kits and they work well. Greatly simplifies wiring auxiliary lights on a vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 13, 2023

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