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  #1  
Old November 11th, 2013, 02:43 PM
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Exhaust options

I am going to replace the exhaust system on my 97 NAS D90 and I would like to get some feedback on options. Borla/Magnaflow - others?
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  #2  
Old November 11th, 2013, 02:45 PM
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I have a double s exhaust in it sound great. Not supercar sound obviously, but a good v8 rumble.
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  #3  
Old November 11th, 2013, 02:48 PM
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Will. The below threads are from the past few weeks/months. The exhausts are all a little different, so it's more directly related to what you want out of it.

http://www.defendersource.com/forum/...orla+magnaflow

http://www.defendersource.com/forum/...orla+magnaflow
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Old November 11th, 2013, 03:13 PM
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Thanks

Thanks for the info.
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  #5  
Old November 11th, 2013, 03:48 PM
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Ive put 4k on a complete manifold back Magnaflow system. Looks beautiful but I still cant get all the joints to seal. Noise is a cross between a Lambo and a 80s Chevy V6 and will drive you crazy at 70 mph. . But then again my ears are shot. I got the Y Pipe and Exhaust for around $900.

Im replacing the muffler to see if I can just quiet the system down. If I were you, Id get a custom SS system bent up at a reputable shop.
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  #6  
Old November 11th, 2013, 05:09 PM
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X2 -- significant drone at 2500 rpm with a 4.6. Don't know if it's the muffler or flanges that don't completely seal...probably combination of both.
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  #7  
Old November 11th, 2013, 07:31 PM
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Mike Ferguson
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I recently changed from a Borla to an NPR. The Borla had a good sound, but was too loud for me in the truck (probably due to the cracking and leaks). The NPR is pretty expensive, but beautifully made and sounds great. I had problems with both clearing my rear mud flaps…Good luck!
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  #8  
Old November 11th, 2013, 07:36 PM
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This is also on my project list, and I too still have questions. What would the options be for the closest to OE sound without going with LR cats, ect...?
Really all I need to replace is my cats but there seems to be a big disconnect between the LR cats and some random site online selling one that fits when it comes to price. Anyone ordered a Y section with cats off the web? How did it go?
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  #9  
Old November 11th, 2013, 07:46 PM
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Maganaflow. I have their mufflers on both of my trucks, my classic is significantly louder due to the lack of cats .
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  #10  
Old November 11th, 2013, 07:48 PM
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I ordered a set of y-pipes from Parts Geek. They fit great but I can't attest to any performance/quality difference from stock - the cats on the truck when I bought it were from some other 3.9 Rover and fit poorly, so not a good benchmark.
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  #11  
Old November 11th, 2013, 09:08 PM
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My Y Pipe is Magnaflow, including their cats. It doesn't bolt up well at all to the manifold or their own cat back muffler. And to top it off, the welds around one of the flanges on the manifold side are so wide that the nut won't tighten on the stud. They do clear the drivetrain and frame.

I would do custom, with Lifetime Warranty Stainless Magnaflow cats, The $55 each NTK O2 Sensors from Amazon, Stainless Pipe, muffler of your choice, Genuine rubber hangers, and Magnaflow tip. Bet you could do it all for less than what I paid and get a better result and tuck it up better under the body.
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  #12  
Old November 12th, 2013, 12:03 PM
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This is my 90 SW with the above mentioned Magnaflow system at 2600 RPM. I hope to get it into the low 70s or mid 60s with a new muffler and all the noise attenuation measures installed (acoustic matting, Dynamat, etc).
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  #13  
Old November 12th, 2013, 06:20 PM
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Frank Battersby
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FWIW, I put a magnaflow cat back on my dad's DI a few months back. Droned terribly at 45-60mph.

I added back in a resonator from summit:

http://www.summitracing.com/parts/vpe-1792/overview/

This didn't do much to be honest for the drone but mellowed things a little.

What fixed the drone was extending the pipe just a few inches past the bodywork - it made a huge difference. The magnaflow system stopped just an inch or two behind the bumper and it needed another 4 inches or so.
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