Ok I've been installing the exhaust everything is on except the 2 bolts/springs that are connected to the cat/midpipe
It seems like I tighten it all the way but it doesn't tighten on the borla pipe. Do I need different bolts/springs? Idk what's going on.
When I tighten it, the exhaust is still lose and u can still see kinda a gap, not flush with the cat

 

Sounds like you don't have a donut-mesh gasket in there - you are supposed to rescue the one off the old muffler.

Last time I checked at a dealer they were $50, so there is an incentive.

It's a fat ring of stainless mesh, probably full of carbon, but you need it.

It's also in the instructions for the Borla, but who reads them, amirite?

 

It's not on the instructions tho?
I have the 2 bolts/springs that connect it to the midpipe/cat.
I tighten it all the way and there is still a gap between the exhaust and the midpipe, I'll take a picture of it.

 

theres suppose to be a small gap, the donut gasket should keep it from leaking. The whole point of the spring and bolt/donut gasket is to allow some movement in the exhaust system. It helps with excess movement fatigue so you won't get cracks/bends. easy way of testing to see if its leaking, turn on the car put your hand over the flanged area and feel for air escaping. If there is air escaping, you have a leak, if not your good.

 

is this common practice for exhausts? ill be installing my first in a few days, its not a borla though, its a RR

 

If the system has a flex-joint in the middle as ours does.

The gasket literally looks like a black metal donut, and is held in by the springs on the bolts - why else would you have three-inch long bolts with springs on them??

 

There was a huge leak I would turn it on ad sound so loud like a straight cat/exhaust I ended up getting 2 m10 1.25 bolts and some good washers and made my own and it worked lol

 

Yes, you could do it that way instead of putting a gasket in.

Good luck with that.

 

The gasket is in.. The 2 bolts/sprigs the connect the gasket to the midpipe wouldn't seal it enough even tighten all the way, the exhaust leak would be alot and very very loud.
I just changed the 2 bolts/springs with a different one so the springs could be compressed more and seal it.

 

I lied, I was confused for second thought gasket was where you put the bolts through on the exhaust. When I removed it the stock exhaust didn't have a gasket in between the pipes tho?

 

yes its very common, the engine vibrates alot. without the flex in the rubber hangers/flanged spring bolts/gaskets, the piping on the exhaust system would crack(fatigue) or bend. Just think of the engine that didn't have rubber mounts (solid metal mount), the whole car would shake violently and eventually fall apart.

lol no no. its a gasket the size of the actual piping, that goes in between the midpipe and muffler pipe. it literally looks like a donut and is ment to be smashed together to seal. Without this gasket you will have a leak...

 

Ok thank you, I'll check if it's stuck in the stock exhaust if not I'll get a new one thank you very much guys

 

That gasket is going to be on your cat, so check there. When I installed my midpipe I actually forgot that gasket and wow was it loud lol. You did not say if you had a cat or a midpipe but if you never changed the cat then the gasket should still be on there as mine was super snug and would not slide off.

Be careful when removing that gasket from the pipe I had to take a flat head screwdriver and work it around under it to even make it budge and my car is an 09. You can easily break it its hard to describe what its made of but it chips off easily.

 

You Lied?