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RC - 1st Gen (2015-present) Discussion about the new Lexus RC model

Stock midpipe diameter?

Old Dec 13, 2018 | 10:07 AM
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Default Stock midpipe diameter?

Does anyone know the stock midpipe diameter before the secondary cats? I cant seem to find it...
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Old Dec 14, 2018 | 11:04 AM
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2.5" I believe, been a while since I've been under there though.
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Old Dec 14, 2018 | 12:10 PM
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Originally Posted by Wilzzonn
2.5" I believe, been a while since I've been under there though.
Could you look under and find out for me? Hopefully ill be picking my RC up tomorrow or Sunday! First thing im going to do is bring it to my local exhaust shop and have them weld cutouts into the midpipe and install some new quad tips. I want to know what size cutouts to order so i can get them ASAP.
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Old Dec 14, 2018 | 12:14 PM
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Yeah I'll do that for you when I get home later. Provided that this rain stops. To address your other post though about straight pipe, first thing I did was Titanium straight pipe + Muffler delete. Didn't touch the resonators or anything. You can hear my cold start on my instagram @ Wilzzonn I believe my quads are 2.5" in and 3" out.

Last edited by Wilzzonn; Dec 14, 2018 at 12:17 PM.
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Old Dec 14, 2018 | 03:38 PM
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Confirmed 2" diameter.
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Old Jan 8, 2019 | 01:46 PM
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Here are some measurements that I took of my AFE down pipe and Supersprint front pipe. The connection sizes will be the same as stock, as the AFE downpipe is meant to slip into the stock front pipe and the SS front pipe is made to slip over the stock down pipe.


Tutuapp 9apps Showbox

Last edited by nateboussa; Jan 11, 2019 at 12:32 PM.
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Old Jan 8, 2019 | 03:56 PM
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Originally Posted by Wilzzonn
Yeah I'll do that for you when I get home later. Provided that this rain stops. To address your other post though about straight pipe, first thing I did was Titanium straight pipe + Muffler delete. Didn't touch the resonators or anything. You can hear my cold start on my instagram @ Wilzzonn I believe my quads are 2.5" in and 3" out.
Is there anymore sound clips of you titanium exhaust setup?
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Old Jan 8, 2019 | 05:20 PM
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Originally Posted by ZAM
Is there anymore sound clips of you titanium exhaust setup?
Not at the moment. The only one is on my IG.
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Old Jan 9, 2019 | 10:14 AM
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Going in today to have my cutouts welded in and my tips welded on. I ordered 2.5 Inch cutouts, even if it doesnt fit perfectly, the shop can make them work. Will update as soon as its done.
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Old Jan 9, 2019 | 10:30 AM
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Originally Posted by Pittsy
Going in today to have my cutouts welded in and my tips welded on. I ordered 2.5 Inch cutouts, even if it doesnt fit perfectly, the shop can make them work. Will update as soon as its done.
Nice! Post that sound clip!
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Old Jan 10, 2019 | 07:00 AM
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Originally Posted by Wilzzonn
Nice! Post that sound clip!
Got it done and wired up. I love the note while the cutouts are open, however i am not sure how much of a fan i am when the cutouts are closed. Ill post some videos up on youtube tonight and post the links here. Looking for opinions on whether or not I should go with an Apexi.
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