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Go Back   VW GTI Forum / VW Rabbit Forum / VW R32 Forum / VW Golf Forum - Golfmkv.com > Technical Discussions > Engine / Drivetrain / Exhaust



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Old 05-14-2018, 12:59 AM   #1
GaragePotato
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Drives: 2006 MKV GTI 2 door
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Cheap skate exhaust

First post on this forum, so pardon me if I do anything wrong. I've had my 2006 gti for about 6 months now, and it's great. The po had installed a 3" catless downpipe, and the car sounded good with the resonator and the muffler, but was a little too quiet for me. I decided to do a muffler delete. Since I'm a broke high school kid, I did it in the cheapest way possible without making the car look and sound like hell. One of my friends has a car hoist, so we lifted it up and cut the pipe right before the muffler. Removal of the muffler was straightforward and easy, but that b*tch was heavy. The same friend also has a plethora of pipe laying around his place. We scrounged up some 2.5" pipe with two 90 degree bends, which was exactly what I needed. I cut the pipe to size and welded everything together. I also made use of the factory exhaust hanger by simply welding a steel rod (also found at friends place) to the pipe. Now is where I'd like your guys' opinions. For an exhaust tip, I cut the bottom off of a 30 oz ozark trail tumbler and welded it on. The small end of the cup fit almost perfectly over the 2.5" pipe. I personally think that it looks like a legitimate exhaust tip instead of a coffee mug, and is much less expensive than a purpose built tip. The cheapest I found online was around $30 for a 4 inch tip, and the mug was $10 from Walmart. As far a sound goes, running a 3" catless dp and only the resonator, I think its just right. Has a subtle rumble at idle, is modestly loud under normal driving, and really screams when under hard acceleration. Only complaint is a slight drone from 2.5k-3k when driving highways. All in all, I spend $10 and a few hours work for what I think is a nicely done muffler delete.

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Old 05-14-2018, 10:19 AM   #2
drval85
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I think it looks just fine. Personal preference, I'd want it to stick out less. But great job.
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Old 05-14-2018, 11:55 AM   #3
3carmonte
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Who say's American ingenuity is dead? I like the extension. Less chance of heat exhaust blow-back on the plastic bumper. Where and how does the 3" downpipe adapt to the 2 1/2" tail pipe? I am not up on the exhaust systems in our cars so tell us, how are you dealing with O2 sensors and the CEL codes that I'm imagining are produced with a mod like this?
I really like it. Simple and effective. How did you weld to that stainless case? You have mad skills!
P.S. My wife's from Dickinson.
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Old 05-15-2018, 01:14 AM   #4
snobrdrdan
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Not bad.

I'd replace the single tip with this tip though, IMO:


It'll fill out the bumper cutout & flow with the curve of the bumper too...so you can have a better/flush fitment
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Old 05-15-2018, 01:25 AM   #5
GaragePotato
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Quote:
Originally Posted by 3carmonte View Post
Who say's American ingenuity is dead? I like the extension. Less chance of heat exhaust blow-back on the plastic bumper. Where and how does the 3" downpipe adapt to the 2 1/2" tail pipe? I am not up on the exhaust systems in our cars so tell us, how are you dealing with O2 sensors and the CEL codes that I'm imagining are produced with a mod like this?
I really like it. Simple and effective. How did you weld to that stainless case? You have mad skills!
P.S. My wife's from Dickinson.
I'll post a picture of the downpipe when I have the car up on ramps later this week for an oil change. As for CEL, I unfortunately have it on all the time the dp has a bung for the o2 sensor, but it still throws a cat code. Any information on how to remedy that would be appreciated.

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Old 05-15-2018, 01:28 AM   #6
snobrdrdan
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Tune the car....no more CEL
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Old 05-15-2018, 01:31 AM   #7
GaragePotato
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Quote:
Originally Posted by snobrdrdan View Post
Not bad.

I'd replace the single tip with this tip though, IMO:


It'll fill out the bumper cutout & flow with the curve of the bumper too...so you can have a better/flush fitment
Yes, a tip like this one would probably have a cleaner look, but so far as I can tell, I'm the only one who's used a knock off Yeti mug as an exhaust tip. It's unique

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