Exhaust systems that are quiet
#22
10-04-2010, 06:25 PM
I'm ***** deep in replacing my exhaust right now, and it isn't easy or fun. My flex broke clean in two after the car was revived from months of rest. 
So it was wrapped in a roof flashing and hose clamp bandage until now.
The pipe is a PITA to remove. The three bolt flange on the back of the cat is impossible to reach from the top (after removing the air box assy.) or the bottom (after placing the car on jackstands).
So, I got the idea to remove the cat, and pull it out from the engine bay, thusly removing the front part of the exhaust. Discovered the second O2 sensor, because I'm an idiot, and never checked. This second O2 sensor is also not fun or easy to remove, and that is where I am stuck.
Long story short, I'm pissy **** pissed at my car and its exhaust system while the shiny stainless one just looks at me from its position propped up in the corner of this room.
The cat is unbolted from the turbo, and is held in place by an O2 sensor that won't budge, and I cant unbolt the broken exhaust piece from the cat.
Any tips on how to pull the hooker outta there?
So it was wrapped in a roof flashing and hose clamp bandage until now. The pipe is a PITA to remove. The three bolt flange on the back of the cat is impossible to reach from the top (after removing the air box assy.) or the bottom (after placing the car on jackstands).
So, I got the idea to remove the cat, and pull it out from the engine bay, thusly removing the front part of the exhaust. Discovered the second O2 sensor, because I'm an idiot, and never checked. This second O2 sensor is also not fun or easy to remove, and that is where I am stuck.
Long story short, I'm pissy **** pissed at my car and its exhaust system while the shiny stainless one just looks at me from its position propped up in the corner of this room.
The cat is unbolted from the turbo, and is held in place by an O2 sensor that won't budge, and I cant unbolt the broken exhaust piece from the cat.
Any tips on how to pull the hooker outta there?
#23
10-04-2010, 08:09 PM
I'm ***** deep in replacing my exhaust right now, and it isn't easy or fun. My flex broke clean in two after the car was revived from months of rest. So it was wrapped in a roof flashing and hose clamp bandage until now.
The pipe is a PITA to remove. The three bolt flange on the back of the cat is impossible to reach from the top (after removing the air box assy.) or the bottom (after placing the car on jackstands).
So, I got the idea to remove the cat, and pull it out from the engine bay, thusly removing the front part of the exhaust. Discovered the second O2 sensor, because I'm an idiot, and never checked. This second O2 sensor is also not fun or easy to remove, and that is where I am stuck.
Long story short, I'm pissy **** pissed at my car and its exhaust system while the shiny stainless one just looks at me from its position propped up in the corner of this room.
The cat is unbolted from the turbo, and is held in place by an O2 sensor that won't budge, and I cant unbolt the broken exhaust piece from the cat.
Any tips on how to pull the hooker outta there?
So it was wrapped in a roof flashing and hose clamp bandage until now. The pipe is a PITA to remove. The three bolt flange on the back of the cat is impossible to reach from the top (after removing the air box assy.) or the bottom (after placing the car on jackstands).
So, I got the idea to remove the cat, and pull it out from the engine bay, thusly removing the front part of the exhaust. Discovered the second O2 sensor, because I'm an idiot, and never checked. This second O2 sensor is also not fun or easy to remove, and that is where I am stuck.
Long story short, I'm pissy **** pissed at my car and its exhaust system while the shiny stainless one just looks at me from its position propped up in the corner of this room.
The cat is unbolted from the turbo, and is held in place by an O2 sensor that won't budge, and I cant unbolt the broken exhaust piece from the cat.
Any tips on how to pull the hooker outta there?
I'm sure I will encounter any pain you are going through right now once I settle on an exhaust. I really wanted to keep the car stock, but this exhaust problem has me searching for exhasuts already.
Remove the lf wheel and lf drivshaft shield. Unbolt the braces holding the flexpipe it necessary. Cut the exhaust near the flex if necessary. Remove the airbox and unbolt the cat from the turbo. Unplug the O2 sensors and cut the zip ties. Snake them around the back of the engine and make sure they are free. Pull the cat and turbo out together from above. Twist while pulling and it will pop right out.
It's funny how I still have not identified root cause of the whistle - it could very well be a boost leak -- but the idea of getting an aftermarket exhaust to solve the problem is sooo enticing.
When in doubt, just add mods.
#24
10-04-2010, 08:10 PM
I just bought a grinder and a 4 1/2" cutoff wheel. We'll see how things go tomorrow after I've refilled my patience reservoir with a few Dos Equis and some Chile Verde.
And Milltek being a no-name shop? That's like saying the Nurburgring is a no-name road. Milltek = BAMF
http://www.youtube.com/watch?v=9BQ6a...eature=related
http://www.youtube.com/watch?v=GgElA...eature=related
And Milltek being a no-name shop? That's like saying the Nurburgring is a no-name road. Milltek = BAMF
http://www.youtube.com/watch?v=9BQ6a...eature=related
http://www.youtube.com/watch?v=GgElA...eature=related
Last edited by Cory Smith; 10-04-2010 at 08:20 PM.
#25
10-04-2010, 08:35 PM
I just bought a grinder and a 4 1/2" cutoff wheel. We'll see how things go tomorrow after I've refilled my patience reservoir with a few Dos Equis and some Chile Verde.
And Milltek being a no-name shop? That's like saying the Nurburgring is a no-name road. Milltek = BAMF
http://www.youtube.com/watch?v=9BQ6a...eature=related
http://www.youtube.com/watch?v=GgElA...eature=related
And Milltek being a no-name shop? That's like saying the Nurburgring is a no-name road. Milltek = BAMF
http://www.youtube.com/watch?v=9BQ6a...eature=related
http://www.youtube.com/watch?v=GgElA...eature=related
Haha - yeah, I'm an uber newb to german cars. Still in learning mode for all of these new brands. The Milltek on the B7 sounds like a BAMF. The second vid just sounds aweful to me, tho.
#27
10-04-2010, 11:32 PM
That sounds pretty involved/destructive. But, if that's the only way, what else can you do? I won't count on having useable stock exhaust after I install the aftermarket one that I choose.
#28
10-05-2010, 11:25 AM
How so? If you're replacing the exhaust, it won't matter. The cat will be unharmed. The downpipe unclamps, but sometimes the clamp needs to be cut due to rust. The stock downpipe is prone to rust at the flex and the flange, so much Shokan doesn't even normally have any to sell (or at least Evey time i've called about one).
As far as the clamp goes, the bolts holding it together have a carriage head, with a square under it. The square fits in a pocket in one side of the clamp. I couldn't get them to budge one bit, even after 30 mins of PB Blaster attacking them. I ended up twisting the bolts in two. Will be replacing them with some Grade 8 bolts from Lowes. They won't be the carriage head with the square, but whatever. At least they won't rust solid like the others.
I imagine that I'll have the same problem where the downpipe attaches to the Cat, but we'll see when I get there...
#29
10-05-2010, 12:50 PM
How so? If you're replacing the exhaust, it won't matter. The cat will be unharmed. The downpipe unclamps, but sometimes the clamp needs to be cut due to rust. The stock downpipe is prone to rust at the flex and the flange, so much Shokan doesn't even normally have any to sell (or at least Evey time i've called about one).
EDIT: IMO they should have designed the exhaust to unbolt in sepearte pieces like in hondas.
Last edited by waltma70; 10-05-2010 at 12:53 PM.
