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Dominator961

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Are you using the ARH system including their mufflers? I have used both kooks and arh in the past and arh has always been slightly better quality. I loved the video of the red gt350 with the whole kit. I think his was catted. Seems loud but I would go catless. As long as it is a clean sound...the louder the better IMO.

Scott
I have done ARH with stock mufflers and with their mufflers and ARH with borla. All catless.
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Dominator961

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Which one did you prefer and why?
I like the ARH long tubes and catless with direct connect on stock R exhaust because I like rasp.

I also like the ARH long tubes and catless with ARH complete exhaust minus their resonators.

The ARH and borla I didn’t get much drive time because I had a prototype set of borlas and the fitment and quality was shit.
 

Leadfoot350

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Has anyone done a stainless works longtubes with corsa double helix x pipe combo?
 

madlag

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complete kooks custom system installed to deal with excessive noise/drone/rattle.
IMG_2488.jpg
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madlag

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Are those additional cats in the first pic?
No sir those are additional shorty resonators meant to look like cats. Car still sound fpc but it’s deep. Maybe 20% louder than stock R.
 

BigBlue

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E85 and cat deletes and fly. Cheap, works just as well.
 

madlag

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E85 and cat deletes and fly. Cheap, works just as well.
“Works just as well” .... sure.... you’re going to need to produce some dyno results sheets before and after to back that statement up.
 

BigBlue

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“Works just as well” .... sure.... you’re going to need to produce some dyno results sheets before and after to back that statement up.
Are you referring to cat deletes vs longtubes portion or?
 

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Deathvalleysc

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I have a 2016 gt350. I installed the full Kooks green cat system. I got a great deal on amazon and picked the full system up for $2400 vs the $3900 other stores try to sell it for. I saved another $1000 installing it myself. The install takes about 10-12 hours but to me it was well worth the $1000 I saved. I love the sound of the full system but may switch the cats out to O/R cats to get a little extra hp and a little louder sound. I thought about going back to the stock mufflers to get a little louder sound while at lower RPMs but I’ve read there’s a 5-10 hp gain with the kooks mufflers. I really like the raspy sound I get with the system and it sounds amazing at WOT. I’ve gotten tons of compliments by people that have heard it. I also have the JLT intake and the car was dyno tuned. My next upgrade will be the AFD E85 kit. I can’t wait to see what this beast will do on E85.
 

Deathvalleysc

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FYI, I have a set of Kooks headers for sale that have been modified if anyone is interested that live around South Carolina.
 

I am Jeff

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complete kooks custom system installed to deal with excessive noise/drone/rattle.
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Did you install a set of secondary cats to qwell the noise?
 

madlag

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Did you install a set of secondary cats to qwell the noise?
No. No cats at all. Those are custom resonators meant to look like cats. Very high flow tho. 2 sets of resonators total on the car.
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