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Kustom 1:87 Kreations
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Discussion Starter #1
I have a 2003 GT and I purchased the American Thunder system from AM last year. It's too damn quiet for my liking. Anyway, I'm not sure if I should just purchase a different catback exhaust system, or try adding an aftermarket H/X pipe? I hate the idea of spending another $500+ on a new catback system, but I'm just not sure if an aftermarket X/H pipe will be loud enough? Also, I'm curious if a catted X/H (id rather keep the cats) would be much louder than the factory pipe?
 

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Down for the count
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2,018 Posts
Catted H pipe will make a huge difference. It always sounds mild with cats.
 

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282 Posts
You can always have a different muffler welded in. Pypes m80's and a off road x pipe scream almost an exotic sound. Barely any drone at all either.
 

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Kustom 1:87 Kreations
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Discussion Starter #4
I thought about having the Loudmouth resonators welded in, but it looks like they wouldn't really fit with the left over Flowmaster piping.
 

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I thought about having the Loudmouth resonators welded in, but it looks like they wouldn't really fit with the left over Flowmaster piping.
I don't see why a decent exhaust shop couldn't weld them in.
I had my flowmasters removed and m80's welded in.
Think mine is the stock cat back piping but that shouldn't matter.
 

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Put an o/r h pipe on there, itll wake it up.
 

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You can always have a different muffler welded in. Pypes m80's and a off road x pipe scream almost an exotic sound. Barely any drone at all either.
I second this. had a shop weld in pypes m80s and tailpipes all the way back along with some high flow cats on my offroad x. It is stupid loud even with cats and my girlfriend heard me cruise by her work a quarter mile away the other day hehe people compliment it almost daily, it turns heads for sure
 

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An offroad prochamber would sound very good with that catback.


I have this setup and can vouch for how good it sounds. Its not ear-splitting, but its night and day from the stock midpipe
 
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