Exhaust front to back

TrexRunnerGirl

New member
I need to replace the exhaust system from engine to tail.
The muffler to tail has been 'fixed' by welding it (ugh) but there's a hole somewhere up front and it is noisy!
So the fix is to replace the whole system.

Q1: Would it be worth junk-yarding to find the cat converter to use - would that a good idea even? and taking it off?

Q2 - estimated cost of front to rear replacement parts?

I saw on ebay from convertor to tail for like $129 or so - not including convertor. I think the convertors are the big ticket items.

Needs done soon before I go nuts from the noise.
 
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If your state allows it a used catalytic converter is much cheaper than new due to the amount of platinum in the catalyst material. However, if you want to try and pinpoint the leak you can do a poor man's smoke test with Seafoam. Search it on Youtube if you're not familiar with the product but when applied directly to the intake it smokes like mad and if you have an exhaust leak you'll see it puffing smoke out if you use a flashlight.

If it's just the muffler, a good cat-back exhaust off Rockauto.com will do the trick nicely.
 
I went to RockAuto and see there seems to be the system from manifold to rear including the cat for $226. I think I'd need the O2 sensor then and I hope that's not a big nightmare.
If the Borla makes it quiet, that's the ticket.

would it be a PIA to get the system off a yard pick? (sorry I don't exactly know what I'm doing - noob and learning as I go).
 
I had 4 exhaust leaks on my runner, all were gaskets. Much lead expensive than a whole new system. :cowboy:
 
I like my napa cat back. It's aluminized and holding up well. You can opt for the SS muffler section.


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Walker has a detailed diagram showing you every component for the exhaust with the parts numbers including gaskets, hangers and so on. Just google walker exhausts and put in your vehicle info.

I had a walker cat back exhaust installed about 2 years ago and it's holding up well in salty/rusty Wisconsin.

There are definitely better exhaust systems available but if money is tight, it's an option.
 
WALKER® EXHAUST SYSTEMS :: World Class Exhaust Solutions From An Industry Leader <--- can look up the part numbers for everything including gaskets and hangers.

Walker has a detailed diagram showing you every component for the exhaust with the parts numbers including gaskets, hangers and so on. Just google walker exhausts and put in your vehicle info.

I had a walker cat back exhaust installed about 2 years ago and it's holding up well in salty/rusty Wisconsin.

There are definitely better exhaust systems available but if money is tight, it's an option.

I'm also running Walker from both cats to the muffler, kept the factory tailpipe because it was still in great condition, for the last 3-4 years and nothing has blown out or rusted through. I did apply some high-heat paint on everything just as a preventative measure.

At the moment they don't have any rebates, at the time I bought the parts I had around $75 in Walker rebates plus Pep Boys had a 25 or 30% discount code so I saved a ton of $
 
It's easy to use Walker's web site to obtain the part numbers you need, and then search the Internet for availability and price.

I've used Walker components and found their quality to be, if not OEM, acceptable. However....

I recently purchased a Walker cat for a 4-cylinder, Federal 4Runner. I took some photos of the end where the cat connects to the exhaust manifold. The two stubs need to rise above the mounting plate about 1/4" so as to position the gaskets. Looks like a Walker welder got in a hurry, and the quality inspector was asleep.

At present I'm negotiating a return. I'll gladly use a properly manufactured Walker item. Or, the vendor may offer me some money and I could get his one fixed.
 

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It's easy to use Walker's web site to obtain the part numbers you need, and then search the Internet for availability and price.

I've used Walker components and found their quality to be, if not OEM, acceptable. However....

I recently purchased a Walker cat for a 4-cylinder, Federal 4Runner. I took some photos of the end where the cat connects to the exhaust manifold. The two stubs need to rise above the mounting plate about 1/4" so as to position the gaskets. Looks like a Walker welder got in a hurry, and the quality inspector was asleep.

At present I'm negotiating a return. I'll gladly use a properly manufactured Walker item. Or, the vendor may offer me some money and I could get his one fixed.

Seems exhaust companies are the worst for quality of workmanship. With the exception of the Borla I mentioned above, I've never had an exhaust that came ready to go out of the box with no modification required on my end- even for stuff that's supposedly model specific.
 
I went to RockAuto and see there seems to be the system from manifold to rear including the cat for $226. I think I'd need the O2 sensor then and I hope that's not a big nightmare.
If the Borla makes it quiet, that's the ticket.

would it be a PIA to get the system off a yard pick? (sorry I don't exactly know what I'm doing - noob and learning as I go).

Find out where the leak is first, could just be a gasket or loose bolts.

Dont go cheap in Chi Town, the salt will destroy the exhaust in 3 years. Get stainless if you need new.

I wouldn't buy a used cat, they're cheap enough on Amazon.

Borla's are not quiet, they growl & are for racing.

You could probably reuse the sensors but they might be rusted.
 
Thanks for the info. Definitely helps a girl out. Since mine is a rarely off the burb road, I prefer the quieter side.

I'll look at the Walker as it sounds that may be what I need. I'll need to crawl under there and check but it's definetly a hole or so I thought last time it was up on a lift.
Now getting it off may be tricky.

I'll see if Timmy the Toolman has done an exhaust video. :)
 
Seems exhaust companies are the worst for quality of workmanship. With the exception of the Borla I mentioned above, I've never had an exhaust that came ready to go out of the box with no modification required on my end- even for stuff that's supposedly model specific.
I second this opinion. I've installed after market exhausts on everything from fox body Mustangs, VW GTIs, and Toyota p/us/4Runners. Everyone of them required some sort of tweaking or modification; some which I could do in my garage while others I had to take to as shop.
 
Check out exhaust components made by Bosal, they are a very high quality for aftermarket. I've used them exclusively when I do repairs to European cars, I never have any luck with Walker fitting properly or, more importantly, lasting more than 3 years.

I'm getting ready to order 2 new cats for my 'Runner, the P0420 code is back and I'm done playing with it. 2 new Bosal Cats will fix the problem for a long time.

FWIW, the Borla systems that I've personally heard are louder and "grumbly" compared to stock. Not my personal choice, maybe it works for some people. Also, It's a federal crime for any auto recycler to sell a used cat converter. I personally don't agree with the policy but this is what I've been told repeatedly from local salvage/scrapper yards.
 
I'm looking to do the same thing. My 05 SR5 V-8 is falling apart as I speak. Was looking to do the whole thing over with headers all the way back to tailpipe.
 
I got the whole exhaust system done. Finally.
Bosch and Denso O2 sensors
Walker - Muffler on back
Bosal - Cat Convertor
Just glad she's back home and I'm not sucking in exhaust.
 

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