99 2 door catalytic converters

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2drNDN

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Hi guys, have a question about catalytic converters. Shops here in dallas want anywhere from 480-600 to replace my stock cats with just your basic universal catalytic converters in my 99 tahoe. I have hunted and found some full replacements from the heads to the place where it connects to the rest of the exhaust anywhere from 200-350$. Should I just have it done and save myself the headache or buy these to save some coin and figure it out myself. I'm pretty handy and have a garage full of tools. Which way would yall go? Thanks!
 

OR VietVet

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On a rig that old you will likely have to deal with some broken bolts during disassembly. Are you set up to handle that as well? Is there a shop you trust that will install your parts?
 
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2drNDN

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On a rig that old you will likely have to deal with some broken bolts during disassembly. Are you set up to handle that as well? Is there a shop you trust that will install your parts?
I had a new motor put in about 2k miles ago and also a trans rebuild at the same time. Looks like they had put new bolts on them. That's about it.
 

willxfs

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I bought the MagnaFlow Y pipe and cats for my 1998 2 door. They have been working great since installed back in 2012. Over the years, I have stripped the threads on one stud of the exhaust manifold/collector. I ended up taking the manifold off and bringing it to an exhaust shop to change out that stud. But the MagnaFlow cats have been great.
 
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2drNDN

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I bought the MagnaFlow Y pipe and cats for my 1998 2 door. They have been working great since installed back in 2012. Over the years, I have stripped the threads on one stud of the exhaust manifold/collector. I ended up taking the manifold off and bringing it to an exhaust shop to change out that stud. But the MagnaFlow cats have been great.
I just ordered a magnaflow. I decided to go ahead and try it myself. Why the hell not. Thanks for the suggestion!
 

Macks2DrTahoe

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Please post pics as you go. I have a 99 2dr which I think I will need to do the same thing.
 
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2drNDN

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I replaced mine on my 98 2 door with the flowmaster i didnt have any problems. Easy install.
https://www.jegs.com/i/Flowmaster/3...CiWa5FxvV-ifKAP6Pb_0HSchw-XJBhL4aAnLVEALw_wcB

I went exactly with this setup instead. The guy at Summit Racing has the same truck (99 2 dr 4x4) and he said this has worked out very well for him. easy to install and came with everything I needed to replace so I wouldn't have any surprises. Did it on ramps in the driveway in a hour and a half, with the brother-in-law and a few beers of course. everything sounds and works great now. Thanks guys!

Link for anyone who sees this and has summit near them. Plus they gave me the 25$ off for black friday.
https://www.summitracing.com/parts/flo-2010023/overview/
 

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