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Old 01-15-2018, 10:56 AM   #26
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Join Date: Feb 2016
Location: Houston, TX

The NA car I just got has the sport exhaust with just the muffler. It sounds slightly more tough standing outside the car, but you cannot hear it at all inside the car.

If you are looking for something you can hear inside the car, you need something more aggressive. Dynomax makes several lengths of glasspacks that you could try very cheaply. Basically the shorter they are, the louder and more raspy.

I have these on my autocross 240 and love them (but its a 5.0 ford). Good smooth sound at idle & mild throttle but when you put your foot down all hell breaks loose.


They also have even shorter ones that are louder yet


And then of course numerous suppliers make the "standard" style which are usually 18". But those aren't loud enough to qualify as slightly obnoxious.
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Old 01-15-2018, 02:21 PM   #27
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shoestring's Avatar
Join Date: Jun 2009
Location: Beverly, 01915

I find the resonance that occurs with the IPD exhaust annoying. Doesn't inspire thrashing.
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Old 01-16-2018, 11:11 AM   #28
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Join Date: Feb 2007
Location: Nebraska

I actually removed the rear muffler added a straight pipe extension and a resonated tip. Its aggressive without being obnoxious when cruising
From my project thread

1991 240 M-47 daily driver
Build thread: 91 240
Feed back: Here
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Old 01-16-2018, 01:35 PM   #29
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Join Date: Jun 2016
Location: Keizer, OR

I went on the cheap after I bought my 91. I had the car less than a month and the rear muffler fell off pulling into work one day...I ran it straight piped and it was loud and good, but raspy. I put a Thrush muffler on in it's place and it sounds great. Not a whole lot of drone in the cab on highway jaunts. The Wife has never complained about it. I am running factory 2", but 2.25" would help more with the better flowing K-cam.
Originally Posted by 87_240TURBO View Post

-My car: White 1991 244, 308k miles. B230F LH2.4, AW70, R134a retro. Thrush glasspack, anthracite refinished Coronas
-Wife's car: White 1990 244DL, T cam, 190k miles.B230F LH2.4, AW70 w/aux cooler, Duracool AC, purple refinished Virgos, tow hitch, ipd wagon overload springs.
-PSM 2002 Subaru WRX wagon: 120k miles, Perrin TBE, Perrin turbo inlet, intake, and Y-pipe, GrimmSpeed cross pipe.
Rebuilding EJ207 shortblock to swap in this summer.
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Old 01-16-2018, 02:26 PM   #30
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Join Date: Jul 2008
Location: Olympic Peninsula, Wa. State

I find the DynaMat super thick stuff (4mm) really helps reduce noise inside the car. Of course, you may want exactly that sound when you're selecting these components over stock....
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Old 01-16-2018, 03:11 PM   #31
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Join Date: Oct 2016
Location: Kingsville, MD

Ok so I think I've sold myself on using a big glasspack or two...

I have 8' of 3" exhaust tubing and a nice 3" chrome tip. Can I use that? I can't imagine the torque loss will be too horrible...
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Old 01-16-2018, 03:14 PM   #32
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Join Date: Jun 2016
Location: Keizer, OR

3" is too much for NA applications, unless your near future plans are +T.
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Old 01-16-2018, 08:48 PM   #33
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Join Date: Oct 2008
Location: SoCal

I had a n/a 240 with K-cam. Ran factory Turbo exhaust (single rear muffler, underaxle pipe) mated to stock downpipe.
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