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Discussion Starter #1 (Edited)
So boys I think it is time to upgrade but I need your help.
I currently have a Racing beat axleback exhaust and I have loved it so far but this summer I will be chiptuning my car so before that I want to have a little more sound and hp gain. so my idea was to remove my second cat. A friend of me told me that it is very easy to do myself and waaay cheaper then doing it in a shop.
But before I start with this I need everything I need to know about it. I already searched on the web but I actually can't find that many people that explains how I can do this, I only see a lot of people deleting their resonators but that is something I want to keep.

So how do I do this? I live in Europe so it is almost a no go to order the corksport midpipe etc... it will cost me a fortune.
please no hate I'm pretty new to all this I know only the basics. 😅
I have a 2018 Mazda 3 2.0
 

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2012 Mazda 3 GX MT5
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In my car i replaced the 2nd Cat with a ultra high flow metalcore cat from Yonaka . Ultra High Flow - Metal Core
Any muffler replacement shop or mechanic with welding can do it . Remove 2nd cat. Weld cut out and weld on to replace what was removed.
 
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