2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

picture of my new RB cat back

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Old Apr 27, 2006 | 06:28 PM
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playdeadva's Avatar
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75LIDE7
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From: va beach, va
picture of my new RB cat back

i just got done putting on all the new hangers etc and i have to say that its a really good cat back. jw does anyone know why one side would hang low?
Attached Thumbnails picture of my new RB cat back-picture-133.jpg   picture of my new RB cat back-rx7.jpg  
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Old Apr 27, 2006 | 07:40 PM
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get new rubber o-rings for the exhaust, it should fix it.
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Old Apr 27, 2006 | 07:44 PM
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I had the SS RB system on my TII for a short period, but when it was originally installed, the left side was lower. My car had the factory "Y" hangers and doughnuts, so we had to heat and bend the muffler hangers to get both sides even.
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Old Apr 27, 2006 | 07:56 PM
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looks really good.
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Old Apr 27, 2006 | 08:01 PM
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Here's how I fixed it.

Loosen the bolts leading from the cat-back to the pre-silencer, or whatever you have instead. Have a buddy hold up the left muffler till they're both even, then tighten those bolts. Worked for me, hopefully it'll work for you.

Enjoy the RB tone! It is lovely. New donuts should also help.

James
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Old Apr 27, 2006 | 08:18 PM
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looks good- buying the whole RB setup myself this summer!
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Old Apr 27, 2006 | 08:36 PM
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75LIDE7
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From: va beach, va
thats the thing though i have all new hangers. ill try turbonuts idea with the heating and bending. this cat back looks so much better then my shitty stock ones.
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Old Apr 27, 2006 | 09:43 PM
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Even with new doughnuts and bushings you will have the RB Exhaust hang as low as It does. It's just the way It was designed. I do remember though a member using smaller diameter generic doughnuts to have the tips sit alot higher than yours (and others). It looked really good this way.

I will try to find that thread and maybe you can PM him for exact Info to the doughnuts.
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Old Apr 27, 2006 | 09:46 PM
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teh winnar

https://www.rx7club.com/forum/showth...3&page=1&pp=15
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Old Apr 27, 2006 | 10:17 PM
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75LIDE7
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From: va beach, va
Originally Posted by silverrotor
Even with new doughnuts and bushings you will have the RB Exhaust hang as low as It does. It's just the way It was designed. I do remember though a member using smaller diameter generic doughnuts to have the tips sit alot higher than yours (and others). It looked really good this way.

I will try to find that thread and maybe you can PM him for exact Info to the doughnuts.

yeah i tried a smaller donut and it just stretches it out the same. i might try to find some lock wire to get it to stay. i dont know if im the only one to do this but i guess some of the tape adhesive was still on the piping and after about 20 mins of drving i smelled it burning hahaha. though i broke something.
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Old Apr 27, 2006 | 10:23 PM
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Make sure not to have it to HIGH...especially when you blow flames. I'm starting to notice some black spots !

"Here's how I fixed it.

Loosen the bolts leading from the cat-back to the pre-silencer, or whatever you have instead. Have a buddy hold up the left muffler till they're both even, then tighten those bolts. Worked for me, hopefully it'll work for you.

Enjoy the RB tone! It is lovely. New donuts should also help.

James"

^Listen to him. That's what we did. Also, I bought the whole $100.00 donut replacement.
Attached Thumbnails picture of my new RB cat back-dsc09415.jpg  

Last edited by JMY952; Apr 27, 2006 at 10:33 PM.
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Old Apr 27, 2006 | 10:25 PM
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By generic It doesn't neccesarily mean cheap. Maybe you should look Into better quality doughnuts before resorting to hacked versions to raise the exhaust up to where you want It. I dunno, just my buck o' five.
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Old Apr 27, 2006 | 10:27 PM
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Lookin' good and subtle.
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Old Apr 27, 2006 | 10:33 PM
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75LIDE7
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From: va beach, va
Originally Posted by silverrotor
By generic It doesn't neccesarily mean cheap. Maybe you should look Into better quality doughnuts before resorting to hacked versions to raise the exhaust up to where you want It. I dunno, just my buck o' five.
haha i basically just went to advanced auto but i know what you mean. this is mostly temperary because next weekend ill be putting her on a lift for the headers and cat so i will make all my final adjustments there.
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