I installed an RB catback last summer on my 88 N/A and when all was said and done i found that the mufflers werent even...the drivers side hangs about 1/2" lower than the passengers...anyway ive been too lazy to deal with it but now im lookin to fix it...im assuming its crooked because i reused the rubber exhaust hangars that were already on the car...can i get new ones that will be the right size for the 7 at any parts store or do i have to order specific ones from RB or someone else?

 

www.mazdatrix.com has them aswell, but take one out and go down to the auto parts store and see if they have any first.

 

Yeah if you look at the two mufflers the hangar on the driver side one is actually welded in a different place. I'm not sure why they did this, i actually had to get different size doughnuts for that side to get them even. Some people claim that having someone lift up on it while you bolt it down to the cat will fix it, but that didnt work for me.

What you should do is go to any autoparts store and get the rubber hangars that can be adjusted then you can play with them to get it even.

 

ok i went to napa and got the new hangers for the mufflers...i put em on today and they pulled the pass. side muffler in closer to the body which is good but the drivers side one is now even lower than the pass. and is still pulled towards that side...i tried retightening the cat bolts with my gf holding the muffler in place but that didnt help either...are there any other possible suggestions?...where would i find these adjustable hangers...my last resort idea was to use a screw type hose clamp as a hangar on the drivers side to pull the whole thing up and to the left...good idea or no?...thanx

 

THEY ARE ROLLER BLADE WHEELS

but I don't understand how one side would be lower than the other if you have it together the same

 

i have the same problem, except my driver side is like a full inch lower

its driving me crazy, but i dunno if i want to go through the pain in the *** of removing and then reinstalling those donoughts

 

Just use some heavy duty zip ties. You can put them at whatever height you want. I've been running the same 2 for two years now.

 

forgot about that

I also have zipties on my custom exaust

 

never thought of zip ties...i always forget the simple solution...anyway ill check the hardware store for some today...were the ones u used ryan a certain width..thanx

 

I'd say like a mm or two wide

 

Interesting. Snrub from London just installed a set on his car and has the same issue.

I don't know what the auto parts stores are like in your area, but around here they sell some very nice hangers at Canadian Tire. They look like this:



I have not yet used them but they do appear to be very high quality and keep the exhaust from swinging around. Not a direct bolt-on with your RB system but a nice upgrade.

The doughnuts are available at almost any auto parts store but in my opinion they allow the system to swing too much. I hate that.

For the love of all that is holy, DO NOT use zip ties.

 

What's wrong with using crappy pieces of plastic on a very hot exhaust?

 

use hose clamps

 

You guys are killing me...Exhaust hangers exist for a reason: to hang an exhaust. They provide the necessary movement without allowing the system to bang around. Zip ties, hose clamps and the like may work fine in the short term but will fail in the long term. Zip ties were obviously never designed to handle these conditions and will allow the system to work back and forth, cutting the tie or melting it easily. Hose clamps will rigidly mount the system so that every time the engine torques the exhaust tubing must flex instead of the mounts. This will crack the tubing.

 

racing beat mufflers are most definately welded at different angles on the drivers side vs the passenger side. it annoys me to no end. i guess using smaller donuts on the drivers side only would help the problem, if not that then aaron cakes method would work. seems like overkill though. the donuts work fine.

 

Yeah you can get the rubber adjustable ones for like $4 a piece, its the only fix for that damn saggy muffler.

Why couldnt they have just welded the damn hangar on in the same spot on both mufflers, i really think rb is well constructed but that is pretty lame.

I dunno about using anything metal, wont that transfer a lot of noise?

 

Hmm, has any tried to just adjust the unit at the cats/mid pipe connection?

or tried to bend up body arms (the arms that are welded onto the body above the muffler that donuts clip around)?

Normally if one pipe is lower than the other it is actually because the mid-pipe location/angle is off a few degrees (one of the reasons Mazda made that joint a slip joint).

 

My RB Catback sat a bit awkward too. The left muffler hung lower than the right. I loosened the bolts from the presilencer to the catback, twisted the catback assembly a bit while a friend let me know when it was straight, then bolted it back together nice and tight.

Kept things even for me.

 

Yep, that was what I was saying exactly!

 

Shouldnt the hangars (hooks) be welded on the mufflers at the same spot on each side? They are not on mine, definately welded on different spot, or is that intentional? I dont think its supposed to be like that, i had someone hold the drivers side muffler up while i bolted the y-pipe back down to my cat, it drooped back down un-even like always.

If it wasnt stainless i would have just cut those hooks off and welded them again like the other side. Since it is stainless i just got adjustable rubber hangars and sinched that side up much tighter.

If their suppose to not be hooks at the same position than tell me what is screwed up with my car, they look like they would be even if the hooks on the driverside werent welded on higher than the passengers. I'd love for someone to tell me thats normal cause that was an expensive kit, maybe i need to fix something else.

 

2+ years with no problems whatsoever(20,000+km). Going on my 3rd summer on the same set. Mine are 1/2" wide and you can't move the system back and forth easily. I don't see them failing anytime soon, and if they do, well its cheap. Don't knock something If you haven't tried it before.

 

i have used hose clamps and exhaust hangers for my T2 . the ONLY thing to not pop in half is some heavy duty zipties.. like 100lb-180lb test zip ties. i put too on each exhaust hook.. whoever wanted to be smart and say they would melt i dont know what the heck kind of exhaust they are running... every exhaust i have ever seen has hangers on the exuast they dont go around the actual exhaust...... drama queen

 

well i guess im gonna try lookin for those adjustable hangers...another idea i had was plumbers straping but i dont think metals gonna be a good idea...it sux havin a stupid little problem like this with such an expensive exhaust...oh well

 

we have to adjust aftermarket exhaust hangers in my shop all the time. they rarely fit properly. just make sure when you adjust it you are bending the hanger and not part of the exhaust system.

to avoid damage it may be necessary to take it off so you can work on it with a vice. another method is to heat the hanger with a propane or mapp gas torch where you want it to bend and then knock it or pry it.

 

the actual angle of the muffler tips is different on each side coming off the canister