Dual Exhausts

[BeetleCamry]

Has anyone seen a dual exhaust setup on a beetle before. I have seen some where the duals are below the bumper, but I wanted mine to come out of the reverse lights. I have seen a pic of this before, can anyone find it? Any info would be apprieciated. I also know that I would have to re-locate the reverse lights, as it it illegall to not have them. Any ideas on where to put those? Also, how would I dual a system out, I already have an exhaust system on there, but really want to dual it out.


P.S.-I posted this in two forums, and hope I didn;t break any rules..

[blaquea8]

www.beetlecupconnection.com has the exhaust that you are looking for where the pipes come out of where the back-up lights should be.
Other dual exhaust that I have seen are available through Remus (can be hard to find but it does exist) or there are also a couple of choices on www.estrictlyforeign.com (look in the VW exhaust section and then select the "Fox" option). I have been told that many of the exhausts for the Golf IV are easily installed on a Bug so you have a couple of tip choices with the Fox exhausts.
Hope that helps!

[germankars]

I have that exact setup on my beetle if you would like pics i can get them to you. the system is a 3in turbo back setup. in order to get proper clearance and be actual functioning dual tips it is required to remove the spare tire well. email me for more info and pics....probably going to be selling the setup soon very soon so let me know if your interested~ germankars@yahoo.com

[NBTurboFreak]

I am planning to go dual but I cannot get rid of the spare tire well causer my speaker box is using it along with about 95% of my trunk space as well.

[Red Rider]

That is great looking-and what i want to have-i would love to see pics and get info on this. I have 2.5" apr exhaust system. I think i see a way to do this without removing spare tire holder but i need some info. will pm you.

[germankars]

yea it all depends what you want. I chose to do it the way i did because i wanted 3inch turbo back not 2.5, and also i didn't really mind because i was planning on an awd conversion which i am currently working on. so what you have to ask yourself is what do you really want more bottom end or more top end. and also what stuff you have on your motor and what you want to do in the future. then you will know.

[BoostedOne]

Originally Posted by germankars

yea it all depends what you want. I chose to do it the way i did because i wanted 3inch turbo back not 2.5, and also i didn't really mind because i was planning on an awd conversion which i am currently working on. so what you have to ask yourself is what do you really want more bottom end or more top end. and also what stuff you have on your motor and what you want to do in the future. then you will know.

Actually, IMHO 2.5 vs 3" on a turbo car is more than just top end vs low end. Fact of the matter is, the turbo provides all the backpressure the engine would ever want, and the largest sewer pipe you can fit downstream of the turbo is nothing but an advantage until you get to the point of diminishing returns on performance and weight becomes a factor
Running a 3" pipe will not only help in top end breathing but should result in more usuable low end power as the turbo can spool faster, and therefore make boost sooner, which obviously will bump up the power..
Now on the other hand, if you were running a 3" down pipe to the rear axle, and the decision was whether to run a pair of 2.5" pipes or a pair of 3" pipes, I think the difference would be negligible if anything at all. A pair of 3" tails wont necessarily flow any better than a pair of 2.5" tails when its fed by a single 3" pipe for the past 6 foot. More of a difference will be found by careful planning of the system, and part of that being how the Y is constructed. A poorly designed Y connector to hook up the extra tail can kill the 2.5 setup, and likewise have detrimental effects even on the 3". If you gotta do duals, especially 3", I think germankars has the right idea for getting it done. After spending many many days under the NB routing just a single 3"(and making it repeatable), I dont see any way the spare tire well can remain AND have a good feed to the other side of the car. I really dont even think it would be possible with the 2.5, but I didnt even look into it as I never understood the fascination with duals in the first place when they are fed by a single pipe...

[Red Rider]

talking about back pressure and turbo providing enough-what do you think about going mufferless with a l.8t and a 2.5" full turbo back apr exhaust system. will mufflerless help??

[BoostedOne]

Originally Posted by Red Rider

talking about back pressure and turbo providing enough-what do you think about going mufferless with a l.8t and a 2.5" full turbo back apr exhaust system. will mufflerless help??

If you can handle the noise of being mufflerless, go for it, it aint gonna hurt thats for sure.
When I was younger and noise was not an issue, I used to always run 3" pipes on my turbo cars, no mufflers or cats. Im going to release a 3" for the NB soon(see the 1.8T forum), and you'll be able to quick change between catted and non catted, mufflered and non mufflered.

[germankars]

i didn't say that bigger wouldn't give you more torque. I just said that if you go bigger you will see more top end gains. and the feel is noticable. especially on a mildly stock 1.8t

[BeetleCamry]

SO when you dual it out, where do the reverse lights go? Custom fab? Vw2NV, what do you do about inspections without reverse lights?

[v-dubed]

running straight isnt that loud.. as long as u dont dump it under the car like i did... now not to be negitive.. i can see y u would want duels on a show car... but duels does really hurt preformance....but u know im all about that extra 5 hp

[Billsbug]

"nb.org home to the new project 600 beetle... im back baby!!!!! and imma blow u out of the water..."

I prefer the look of one big ol' honkin' tip...

[v-dubed]

idk where imma stick mine when im ready.... its prolly going to be around 4 inches...prolly stick it out the side through the body : )

[BoostedOne]

Originally Posted by v-dubed

idk where imma stick mine when im ready.... its prolly going to be around 4 inches...prolly stick it out the side through the body : )

If you can get it down past the rack, you should be able to get it out of the back except over the axle its barely gonna fit so its gonna clank like a bitch.

[v-dubed]

wont matter car wont be stock anyways..... i can make anything fit

[Red Rider]

I have just about completed the dual exhaust set up with pipes runing out of rear bumper back up lights.

Question---on the present rear exhaust or muffler hanger, which is rubber, can I stablize the new exhaust pipe with a welded to frame metal hanger...Could doing this cause a problem --or keep exhaust system from flexing. It does flex a little even with welded hanger because you do have one other rubber hanger in the system. But very rigid at the tail pipe area.

I am trying to go with 3" tips but this makes it close quarters in the hole for back up light ,and too much movement of system could throw tail pipe aganist sides and melt the area a little . Probably need to go with 2 1/2" od tail pipe and use rubber hanger.(wish i could go with 3" but would this cause a problem or prevent flexing)

Wonder what size tail pipes vw2nv is using

Please advise.

[BoostedOne]

Originally Posted by Red Rider

I have just about completed the dual exhaust set up with pipes runing out of rear bumper back up lights.

Question---on the present rear exhaust or muffler hanger, which is rubber, can I stablize the new exhaust pipe with a welded to frame metal hanger...Could doing this cause a problem --or keep exhaust system from flexing. It does flex a little even with welded hanger because you do have one other rubber hanger in the system. But very rigid at the tail pipe area.

I am trying to go with 3" tips but this makes it close quarters in the hole for back up light ,and too much movement of system could throw tail pipe aganist sides and melt the area a little . Probably need to go with 2 1/2" od tail pipe and use rubber hanger.(wish i could go with 3" but would this cause a problem or prevent flexing)

Wonder what size tail pipes vw2nv is using

Please advise.

A rigid welded hanger in one spot in a system like this I think will fail over time due to fatigue. It could also translate to more noise.
According to Magnaflow, you want to have about 1/2" clearance between the bodywork and the tip to prevent burning of the paint. Probably a bit of a safety factor in there but on the other side of the spectrum the tip is only about 1/8" from my bumper on my Golf and its burned the paint on the bumper.
Why cant you use a universal hanger from Pepboys? They are fairly rigid but do allow some flex.

[Red Rider]

Thanks for info - will check into hanger

I probably need to go to 2 1/2" tip instead of present 3" this would give me good clearance.

My present tip is the borla angle cut 3" intercooler . So inside the 3" tube is a 2" tube for the exhaust. It seems to me that with my 2 1/2 inch exhaust sytem and 2 " tip that the exhaust is squeezed a little. May be better to go to the regular 2 1/2 inch tip ,and that will help on clearance and match the exhaust system pipe size.

Like to have openion on this.

[Red Rider]

3" looks better but will be close.

Did you use rubber hanger