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Old 10-31-2015, 11:35 AM   #1
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Big Exhaust Surprise-Anyone Want These?

Y'all here on the Forum convinced me to move up to the GT500 exhaust

I did and, thanks for all the good info here, I am VERY HAPPY !!!!!

The surprise came when I removed the old axelbacks, which APPEARED to be factory stock.

I bought this car with 6,900 miles on the clock and what seemed to be a stock exhaust system.

The cans looked the same, the rolled tips were factory, but surprise, surprise, surprise, when I removed what I thought was the factory system, the two front factory hangars were not on the mufflers, (lucky for me the brackets were still there)

From the engine back, the main exhaust system was being supported by the engine connection and a single rubber rear hangar.

The cans were smaller and lighter, and had no markings on them.

The cans were simply welded to the factory tips and factory curved inlet pipes, factory sticker still present. The wire feed welds were not the cleanest either. There was evidence of some weld splashing on the undercarriage.

The curious thing was there were two rusty plates welded to the subframe above each muffler but had been cut off. I painted them to protect from rust before I thought about taking a picture.

If these mufflers are anything special, I'd give them away for the shipping cost, however I suspect the previous owner traded this white GT in at CarMax in Gastonia NC on a used red Mustang convertible and swapped whatever upgraded exhaust was on this white GT.

The weld on the subframe tells me that the work was done at a local muffler shop.

I LOVE the car and love the GT500's - am really pleased, thanks guys.

Any ideas on what I removed?

Anyone want them?

Should I save the tips?

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2013 GT Premium (auto) Crystalline,factory 19”wheels, black rocker stripe & heat extractors, redline armrests, Silverhorse windows Polk/Infinity speakers, Dynamat GT500A-bcks 1963 Studebaker Avanti R2 Factory Supercharged still own1938 Studebaker President still own 1969 Mustang Coupe, 302 Blue (sold 1978)1966 Aurora Thunderjet 2+2 Fastback - yellow w/red stripes (owned since age 9)1968 HOT WHEELS Redline Mustang 2+2 Gold - owned since age 11
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Old 10-31-2015, 02:26 PM   #2
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Those look like Dynomax or Thrush cheapos. A $20 buck muffler. Huck em in the bin or recycle the steel bc that is all they are worth, especially without the proper hangers.

I had the same sitch. Dealer installed Thrush welded mufflers which droned like an old university prof. Off they came and on went the GT500s from my last car and all is right with the world.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto N/A tune. 100 shot nitrous on BBR tune. Best e/t 11.38 at 120.85

2012 Premium GT, Candy Red, Brembo package, 3.73, MT82, Comfort, Tech, et al. Procal tune, Roush UCA, UMI poly LCA, GT500s, Steeda red bracket, Hoosier 28x10x16 bias drags. Best e/t 11.91 at 115.23 RIP
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