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Old Jul 8, 2009 | 08:34 PM
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Default Borla catback

Sorry bout the newbness of this question, but what are the adjustable plates that i hear(read) everybody talking about on borla catbacks? I have a borla catback with the quad tips(2 on each side) that I've read saying that they are "intercooled" or whatever? Well about the plates, where are they?
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Old Jul 8, 2009 | 09:06 PM
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the plates are just that, metal plates with varying size holes in them, and one that has no hole.

on the passenger side of the rear exhaust, just after the axle, there should be a Y or basically a cutout.
it should have a 3 bolt flange, thta is where the plates go.

one side of the Y should go to the muffler, the other out to the passenger side tail pipe.

by putting plates in that 3 bolt flange, you control how much of the exhaust is forced through the muffler, or how much bypasses it out the tip.


the intercooler tips are basically a fancy name for the "look" of the tip. they have the inner tube, then an outer tube with some fins connecting the two. its for looks, and the name sounds cool


i'm not a fan of the borla, while the stainless construction is nice. the pricetag for a glorified cutout is WAY too much.
i can get the same sound with a $350 exhaust and a $50 cutout.
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Old Jul 8, 2009 | 09:18 PM
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My car had it when I bought it. Nice system.
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Old Jul 8, 2009 | 09:24 PM
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Originally Posted by teke184
the plates are just that, metal plates with varying size holes in them, and one that has no hole.

on the passenger side of the rear exhaust, just after the axle, there should be a Y or basically a cutout.
it should have a 3 bolt flange, thta is where the plates go.

one side of the Y should go to the muffler, the other out to the passenger side tail pipe.

by putting plates in that 3 bolt flange, you control how much of the exhaust is forced through the muffler, or how much bypasses it out the tip.


the intercooler tips are basically a fancy name for the "look" of the tip. they have the inner tube, then an outer tube with some fins connecting the two. its for looks, and the name sounds cool


i'm not a fan of the borla, while the stainless construction is nice. the pricetag for a glorified cutout is WAY too much.
i can get the same sound with a $350 exhaust and a $50 cutout.

I agree you could get a borla muffler and put it in the tsp rumber system and get a cutout on it and its the exact same thing
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Old Jul 9, 2009 | 07:54 PM
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Originally Posted by teke184
the plates are just that, metal plates with varying size holes in them, and one that has no hole.

on the passenger side of the rear exhaust, just after the axle, there should be a Y or basically a cutout.
it should have a 3 bolt flange, thta is where the plates go.

one side of the Y should go to the muffler, the other out to the passenger side tail pipe.

by putting plates in that 3 bolt flange, you control how much of the exhaust is forced through the muffler, or how much bypasses it out the tip.


the intercooler tips are basically a fancy name for the "look" of the tip. they have the inner tube, then an outer tube with some fins connecting the two. its for looks, and the name sounds cool


i'm not a fan of the borla, while the stainless construction is nice. the pricetag for a glorified cutout is WAY too much.
i can get the same sound with a $350 exhaust and a $50 cutout.
Well the only reason I'm asking is because my car alradey came with it so might as well find out more info about it
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Old Jul 9, 2009 | 09:41 PM
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you and have the same problem. My car also came with the borla already on and I didnt get any plates either. I have read on here of people making their own plates because I here they are quite pricey if you go through borla. I run mine open with LT's/ORY it gets loud at WOT but not too loud for me!
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Old Jul 10, 2009 | 11:52 AM
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I run my Borla without the baffles...sounds great
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Old Jul 10, 2009 | 10:07 PM
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I have borla with LT's, ORY and the half open plate in....I love it! I've seen a few people selling the plates in the for sale section for a good price. Just gotta keep looking.
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Old Jul 10, 2009 | 11:48 PM
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Just make your own plates. Get some sheetmetal, cut a hole. I made a few plates with my old setup when I had just a normal cutout.
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Old Jul 11, 2009 | 07:29 PM
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Originally Posted by Fabian
Just make your own plates. Get some sheetmetal, cut a hole. I made a few plates with my old setup when I had just a normal cutout.
I was thinking about making my own plates, too and just play around with different size holes. I dont know which one is on right now though. I need to check.
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Old Jul 11, 2009 | 07:35 PM
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if you like the exhaust get a electric cutout to go in place of the plates, so very very cool
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Old Jul 11, 2009 | 08:30 PM
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If you call Borla I've heard they will sell you the plates alone. I have it, it rocks.
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Old Jul 12, 2009 | 10:06 AM
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Originally Posted by rpmauto
if you like the exhaust get a electric cutout to go in place of the plates, so very very cool
this is what was on my Z when I bought it...very nice and sounds great IMO, you can adjust to your mood and all the noise is going out the back.
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Old Jul 12, 2009 | 02:19 PM
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so do you guys with the cutouts run a closed plate in your borla?
is there much differnce in noise between running cutout open and running open plate in the borla?
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Old Jul 12, 2009 | 03:39 PM
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the cutout bolts in where the plates go. there will be no plate in the car with the cutout in. you can open it up and it will be just like running the open plate
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Old Jul 12, 2009 | 03:50 PM
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plate kit from borla is $50 - $60.
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Old Jul 12, 2009 | 04:00 PM
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Originally Posted by cabolew
plate kit from borla is $50 - $60.
do they sell them separatelly ? , i would to purchase them cause i lost 2 plates.
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Old Jul 12, 2009 | 08:12 PM
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They do sell them as a kit. Four plates in the kit, if I remember right. I had to call them directly and it took almost forever.... 5 weeks. I had given up and bought used plates.
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