Not the greatest, but it looks like it will withstand year round outdoor weather. Here a shot of the actual muffler before we tore off the packaging.
We actually bought the Walker Spring Bolt Kit just in case, but we're happy to report that we were able to fully utilize all of our OEM hardware including the original hangers. Although installation was easy, fitment was another story. While this isn't a “restoration quality” piece of hardware, we wouldn't hesitate to recommend the Walker Quiet Flow SS line of mufflers to anyone that just needs an inexpensive replacement to their old rusted-off can.
It's also incredibly quiet and doesn't have any annoying drones or hums that you usually find at your local franchise muffler shops. That being said, we're still on the lookout for a pre-COVID 88-91 Honda CRY Si OEM muffler.
Relative to other manufacturers, Bola exhaust is well-designed and the system is generally very quiet. Usually you can get a print out of the exhaust system at advance or autozone. Just explain you need to see the breakdown of the exhaust system to see what part of it you need.
It consists of the various parts in the exhaust system such as mufflers. Walkerexhaust.com has a parts' locator that allows you to put in the year, make and model of a car, and it shows a diagram of the exhaust system including Walker part numbers for everything you would need including clamps and gaskets.
The exhaust system is what muffles the engine sound keeps the fumes out of vehicle and away from the vehicles occupants and also filters the exhaust fumes out. The price range for Corvette exhaust systems can vary depending on the condition of the exhaust system; the model of the exhaust system will affect the price range as well.
Unfortunately, as I learned from Walker rep Lou Sanchez : “The part 52166 does not come with a manufacturer's warranty, but I would like to get some direction from the technicians on this issue.” Couple years ago I went to lower it by undoing the strap (to shore up the heat shields), ended up twisting the strap (my bad) and poked a hole in the muffler in the process.
I bet I haven't driven 5000 miles since then, and already it's sounding like a damn rice burner. Granted, it sits on a gravel/dirt driveway most of the time, but it shouldn't sound that bad in two years. In your case, an SS muffler should last a LOT longer.
I replaced the exhaust system from the converter back with Walker parts, and thought I was good for 5 years/75k miles At the end of August this year, the car was in for inspection, and one of the things that failed was exhaust, where the intermediate pipe meets the muffler! The mechanic showed some small pepper holes at that point.
I have again replaced the exhaust from the cat back, with Walker parts. The Quiet Flow muffler was shipped out yesterday to Rock Auto for warranty.
As I put together the exhaust system loosely (didn't tighten down the clamps), I started up the car, and in about a minute, a stream of water came down from where the intermediate pipe meets the muffler. So, that's a condensate collection point if you do a lot of quick, short trips, and I can't really blame the Walker part for rusting.
ON the plus side, I have not had any problems with Walker parts fit, unlike other brands. Interesting info, Baron. I can fairly blame Walker for selling me a stainless steel muffler that's coming apart at the seams after a year and a half.
I can fairly blame Walker for selling me a stainless steel muffler that's coming apart at the seams after a year and a half. Glad it's got a lifetime warranty but seriously this looks like they took an aluminized muffler and repackaged it as SS.
I don't recall seeing an SS option in the online catalog when I went to order in the replacement parts last month, but SS may be a special order that they list somewhere else. I don't know what you paid for that, but yes, I would be ticked if I went to the expense of putting that in, and having it fail so quickly, lifetime warranty or not. I wonder if drilling small drain holes at key points would help the internal rotting issue.
The original muffler has a drain hole. My Walker cat looks poorly aluminized, and the welds look like they will begin to rust immediately, though it does get quite hot, so it may last awhile. The original exhaust parts must have very low oxygen content, because even after the aluminum layer wears through, they don't corrode very quickly.
I really liked the construction of the Magnaflow cat I bought 3 times for my Saturn. Unfortunately none of the Magnaflow cats I bought fit my car due to improper welding.
Has a lifetime warranty, so I just tighten the clamps tight enough to hold everything together, and then when it goes, I reuse the pipes on a new muffler. I have considered drilling drain holes at the rust points, as there is no way for the water to escape otherwise.
I wonder if drilling small drain holes at key points would help the internal rotting issue. The internal rot occurred at the end of the intermediate pipe.
Drilling holes there would allow noise and fail state inspection. On my current install, I sprayed the inside of the pipe end with High-temp (BBQ) paint.
Here's Walker's press release from 2008, announcing the upgrade of the Quiet flow mufflers to 'OE grade stainless steel' : I used to deliver parts for an auto warehouse to local shops, and they went through LOT of walker exhaust products.
10-17-2011, 01:39 PM # 12 Location: Philadelphia, PA suburbs The model number of the one I have : 21348, ordered from Rock Auto in April 2010.
OK, that is the one I purchased in April 2008, and just replaced under warranty. Per Walker, today: “In regard to the 21348 muffler, it is made of T409 stainless steel.” I really can't complain, because I purchased that item for about $20-$25 after rebate, and just replaced it under warranty for the price of return shipping of the failed unit ($10).
I really can't complain, because I purchased that item for about $20-$25 after rebate, and just replaced it under warranty for the price of return shipping of the failed unit ($10). Mufflers that are back by the rear bumper do not last long as mufflers mounted closer to the engine due to the condensation of the corrosive gases.
10-17-2011, 06:28 PM # 15 Location: Philadelphia, PA suburbs Mufflers that are back by the rear bumper do not last long as mufflers mounted closer to the engine due to the condensation of the corrosive gases.
My understanding is that this becomes less of an issue for cars that are driven long enough to warm completely up when they are used. Complete warm up does minimize the problem, but it takes a good period of time in the summer and much longer in the winter.
This is why you find the CAT and muffler as close to the engine as will fit. Small transverse mounted engine cars pose a problem in this regard.
Complete warm up does minimize the problem, but it takes a good period of time in the summer and much longer in the winter. This is why you find the CAT and muffler as close to the engine as will fit.
Small transverse mounted engine cars pose a problem in this regard. My OFNI, VW 1.7 engine, had the exhaust in the rear; super-short manifold, simple flex-gasket on the manifold-downpipe joint to address engine movement, short straight pipe back.
Much simpler from a “real estate” perspective; no exhaust pipe running under the oil pan, etc. My OFNI, VW 1.7 engine, had the exhaust in the rear; super-short manifold, simple flex-gasket on the manifold-downpipe joint to address engine movement, short straight pipe back.
The head pipe was attached to the exhaust manifold with 2 large evil “C” shaped springs that required a special Teutonic tool to either remove or replace. The head pipe was attached to the exhaust manifold with 2 large evil “C” shaped springs that required a special Teutonic tool to either remove or replace.
I've seen a few Rabbit diesels from back in the day (my father-in-law had one); pretty sure the main block was the same one used in the passers, including the engines sent here for the early Omanis/Horizons.