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View Full Version : Exhaust Silencer Removal


jedimaster
04-05-2006, 04:03 PM
I wasn't happy with the XT being as quiet as it was. So I decided to remove the exhaust silencer- I used a pipe cutter to score and remove the silencer:



After that, I unbolted the pipe and put it on a bench to start cutting and measuring.

http://premium.uploadit.org/cultofthejedi/exhaust-silencer-002.jpg

I used some simple exhaust clamps and a piece of straight pipe to fill the gap left by the silencer- remember, measure twice, cut once...

http://premium.uploadit.org/cultofthejedi/exhaust-silencer-003.jpg

This is what the silencer looks like:

http://premium.uploadit.org/cultofthejedi/exhaust-silencer-004.jpg

And here it is looking down into it- it's hard to tell from this pic, but the pipe goes straight through and there's a lot of baffling that traps sound.

http://premium.uploadit.org/cultofthejedi/exhaust-silencer-006.jpg

Here's the final product:

http://premium.uploadit.org/cultofthejedi/exhaust-silencer-008.jpg

Impressions: Upon startup, there's a nice little "thunder crack" as the beast comes to life. Once settled into idle, it sounds like it means business without sounding obnoxious. It actually sounds a bit like the Prodrive my buddy had on his WRX. On my own former WRX, I had a Bosal 3" catback on with no silencer and it was loud, obnoxious and droned like crazy. This is nothing like that- no drone, I suspect due to twin mufflers. It's not overly loud inside with the windows shut either, which was a concern. I can't say that it added any power- if it did, it's not much, but it does sound pretty damn good.

So overall, 45 minutes worth of work and very worth it. There goes the rest of the weekend project though- I had planned to replace the mufflers, but I'm quite pleased with how the car sounds now and anything louder might be too much.

ih8vtec13
04-06-2006, 08:36 PM
I just did this tonite, we took way over the time you posted here :lol: but we got it welded and stuff too. Very hapy with it over all, but disapointed after hearing it with nothing after the 3rd cat.

jedimaster
04-07-2006, 02:29 AM
Yeah, it's like when I changed my downpipe and listened to the exhaust with just the turbo and man it sounded weak with the rest of the exhaust attached :lol:

LGT Chris
04-07-2006, 03:19 AM
Yeah, it's like when I changed my downpipe and listened to the exhaust with just the turbo and man it sounded weak with the rest of the exhaust attached :lol:

Are there real no exhaust options for the OBXT? It is probably the same template frame to build the exhaust, but your muffler and tip options are going to be in the crapper given that they point down and not out the back.

Drift Monkey
04-07-2006, 04:29 AM
I just did this tonite, we took way over the time you posted here :lol: but we got it welded and stuff too. Very hapy with it over all, but disapointed after hearing it with nothing after the 3rd cat.
Catless TBE FTW! :tup:

jedimaster
04-07-2006, 12:44 PM
Are there real no exhaust options for the OBXT? It is probably the same template frame to build the exhaust, but your muffler and tip options are going to be in the crapper given that they point down and not out the back.
I use a stock LGT wagon setup with longer hangers- couldn't stnad the limp **** look of the turn down tips.

ih8vtec13
04-07-2006, 12:49 PM
I use a stock LGT wagon setup with longer hangers- couldn't stnad the limp **** look of the turn down tips.
ROFLMAO!!!!!!!!!!!!!
great pleas no comparison potos out of the BB fourm :lol:

Drift Monkey
04-07-2006, 12:52 PM
James has this done but I can't even tell with his two muffs in the way...:Dunno:

ih8vtec13
04-07-2006, 01:05 PM
James has this done but I can't even tell with his two muffs in the way...:Dunno:

It does sound better then with it in. I needed to get some stuff with my friend and we were thinking that one of those Cherrybomb mufflers they had in autozone may be pretty cool to put in place of the silencer and run straight pipe back no muffs. Quiet it a little and lose weight via mufflers. Any thoughts on that?

Bu11dogg2
04-07-2006, 01:13 PM
I have heard this in person.

sounds awesome!!!

Drift Monkey
04-07-2006, 01:34 PM
It does sound better then with it in. I needed to get some stuff with my friend and we were thinking that one of those Cherrybomb mufflers they had in autozone may be pretty cool to put in place of the silencer and run straight pipe back no muffs. Quiet it a little and lose weight via mufflers. Any thoughts on that? I meant Random james just to clarify, but yeah. Why not just make a straight pipe back with no muff? Even less weight! :lol: Looks weird without mufflers though...

jedimaster
04-07-2006, 02:29 PM
I've done that, but it sounds weird. At WOT, the exhaust hits the ground, then the bottoom of the car and makes this really weird echo.

redstang98
03-22-2009, 04:42 AM
What size piping would i use on a lgt?

2.5sbd
03-22-2009, 09:04 AM
Yo was that first pic there before?
That is nasty. How long do you think that guy have them eating at his leg

john
06-25-2009, 07:20 AM
What the fsck is that first picture??

Dookie
06-25-2009, 10:09 AM
:lol: :lol: The Jedi strikes back.

04/2.5gt
08-16-2011, 06:34 PM
i have 3 cats on my car does anyone think that removing one will make it much louder. i want my boxer rumble. sorry for stealing ur post :p

TSi+WRX
08-17-2011, 04:12 AM
It will probably make it just a little louder, but what really caps exhaust sound levels is the muffler canisters. Without changing/altering those, it'll be hard to really bring out the "Boxer Rumble."

kagenmateer
08-18-2011, 09:37 AM
^^^ Yep. Cans first, then each cat you remove after that will make it just a touch louder.