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Anyone modify a Kooks TD?

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Old 04-06-2014, 06:36 AM   #1
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Default Anyone modify a Kooks TD?

I have the Kooks true dual exhaust on my TA and it is too loud. I knew it was going to be loud, but not this loud. I want to add 2 resonators, but I cant figure out where to put them. I have a friend who welds stainless, so that part is a non-issue. Has anyone done it? Any input?
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Old 04-06-2014, 06:53 AM   #2
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Did you run the cats before the X or no?
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Old 04-06-2014, 07:13 AM   #3
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no cats. Ive added auger style silencers which made a very small difference.

My readings at 20 ft away from the car, after the silencers, were:
96 dB at idle
90 dB at 2000 rpm
108 dB at 4000 rpm
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Old 04-06-2014, 08:42 AM   #4
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Try high flow cats but I can wait to get the exhaust
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Old 04-06-2014, 10:16 AM   #5
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cats will mellow it out some and quiet it a little . I think your kinda sol . Not a lot of room to put anything else in . Maybe a bullet muffler or chambered muffler where a cat would go ?
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Old 04-06-2014, 11:23 AM   #6
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High flow catalytic converters may be the way to go. I was considering them on my car but found a way to install the Vibrant resonators. I don't have a 1999 Trans Am though.
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Old 04-06-2014, 03:42 PM   #7
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Baconz28: The quality is phenomenal and it fits great. Its just too loud on my car.

ramairetransam: Im afraid you are right. There arent many straight runs in this system. Im hoping someone has on here has experience adding to this set up.

1989GTA: How well did it work?
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Old 04-06-2014, 06:38 PM   #8
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Is your car cammed ?
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Old 04-06-2014, 06:50 PM   #9
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The 402 must make a hell of a difference. Mine has cats and I wish it was louder. Still have stock internals though.
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Old 04-06-2014, 09:09 PM   #10
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Quote:
Originally Posted by Baconz28 View Post
Is your car cammed ?
Yeah. The cam is 247/251 .623/.623 114+2.
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Old 04-06-2014, 09:38 PM   #11
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The 402 must make a hell of a difference. Mine has cats and I wish it was louder. Still have stock internals though.
The engine itself is louder than LS1s I've owned or been in. If I were you, I would get a electric cut out. That way you can have it loud when you want and still be able to quietly cruise past a cop.
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Old 04-07-2014, 09:06 AM   #12
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How about a "hybridization" of the ideas in these pics below ?
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Anyone modify a Kooks TD?-xxtd7.jpg   Anyone modify a Kooks TD?-xxtd4.jpg   Anyone modify a Kooks TD?-xx4.jpg   Anyone modify a Kooks TD?-40evmrl.jpg   Anyone modify a Kooks TD?-4hssz69.jpg  

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Old 04-07-2014, 05:36 PM   #13
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I saw that last picture yesterday. Im going to try doing that.
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Old 04-08-2014, 04:59 AM   #14
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Just add cats if you don't mind the sacrifice in a little power. Still gonna rumble pretty good though. I've done it both ways with this system....currently without.....lol, really no point in a radio
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Old 04-08-2014, 06:55 AM   #15
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Quote:
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Just add cats if you don't mind the sacrifice in a little power. Still gonna rumble pretty good though. I've done it both ways with this system....currently without.....lol, really no point in a radio
no need for a radio ? Really ? Even At Highway Speeds
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Old 04-08-2014, 09:11 AM   #16
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no need for a radio ? Really ? Even At Highway Speeds
For most, I'm sure its just fine. No for mine. Would rather listen to the cubes anyway....
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Old 04-08-2014, 09:50 PM   #17
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LPE 403 on my last exhaust system I had gutted the cats, and there wasnt a noticeable difference in volume, but the tone was much different.

Im thinking I might just pull the kooks system off and do a custom dual exhaust with two long stainless works chambered mufflers as intermediate pipes and then some borla xr1s in the back. I dont know if I want to chop up and potentially ruin such an expensive system. The kooks true duals can go on my next big inch build. The 402 doesnt NEED dual 3 inch pipes.
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Old 05-04-2014, 01:20 PM   #18
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I have the same problem with my car and this system. I am running cats and it is unbelievably loud. As it is right now there is no way I will be able to use the car for anything but driving in the country. I sent an email to kooks asking for suggestions and I'm waiting to hear back.
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Old 05-04-2014, 05:38 PM   #19
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68L71 let me know what they say. I emailed them and the response was a longer version of "add cats". I've been very busy at work lately, so I havent had time to get underneath the car. I need to quiet it down to run it as a street car at the dragstrip.
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Old 05-05-2014, 09:35 AM   #20
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I'll let you know what they say. It's too bad they don't offer a quieter version, I was hoping since I am running cats that it would be quieter. It is ridiculously loud. I am running a LS7, but with the system being a full 3" true dual, they had to expect people to be running it behind some big motors and not just a stocker.
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