Question about a "cat back", Mine was done wrong! read Options

[mgnt232]

So about a year ago I bought a magnaflow res and muffler. And I brought them to a local shop to get it put on expecting to be done right. But they used the same 1.75" piping that was there.... the magnaflow is all 2.25"
Now i know that a catback is not too much of a performance upgrade, but wouldnt it work better with 2.25" piping from the cat back?
They said they dont bend pipe there (which they dont) but I was at the auto store today and saw some flexible piping, is this stuff junk or would it work? or doesn anyone know what I can do?
I can put pics up of what they did... stock exhaust - manifold - cat - magnaflow res - stock pipe - magnaflow muffler
I know it sounds dumb lol... im not like retarded lol I just dont know anything about "custom work". i went to votech in HS and I know a bit...just not about "custom work".. like i put in my own engine, just dont know how to go about this work

[soulshadow]

I just finished making my own custom flange from the down pipe of my stock 20V exhaust manifold to connect to my old catback for a corolla. Yes even a newbie who burned part of his hair and had to shave it, along with spending over 300$ for a acetylene/oxygen wielding kit was able to do it. You just need to invest in some equipment or find some one who can bend the pipes for you and then you wield them together and if your smart u make flanges so you can unbolt them.

The cost if you want to make your own exhaust, you would spend close to $1000 in the equipment such as a pipe bender and wielding kit with pipes. This is how those ebay guys do it. Not bad if you plan to do custom pipes and sell them. Especially if its for a Toyota cause you know you can't find them anywhere.