[AZe92]

been talking about building a dual to single set-up since i got my car and your set-up finally convinced me to do it, sounds soooo good! exactly how i want mine to!

just ordered most of the parts to build mine, gonna do all the fab myself. still have to go pick up my tubing from a local shop, but looks like i'm only gonna be in it for a little under $300, hopefully i'll have all the parts by this friday and can do it this weekend, but i'll update once i get it done

[_ink]

Do you think this merge pipe will be a good option?

http://m.ebay.com.au/itm/19165799133...&ul_noapp=true

Wagons are dope! I'd rock the shit out of that. Excellent project OP

Originally Posted by ucsbwsr

Yes, it is a Rigid Industries 6" SR in flood optics and it wired into my reverse lights, it certainly works.

Neat! Got a DIY by chance?

[BMDoublYou]

Love the wagon, love the exhaust, love the wheels. What are the specs on those, forgestar f14's right?

[ucsbwsr]

Originally Posted by AZe92

been talking about building a dual to single set-up since i got my car and your set-up finally convinced me to do it, sounds soooo good! exactly how i want mine to!

just ordered most of the parts to build mine, gonna do all the fab myself. still have to go pick up my tubing from a local shop, but looks like i'm only gonna be in it for a little under $300, hopefully i'll have all the parts by this friday and can do it this weekend, but i'll update once i get it done

Must be nice to have a tig welder and skills! Respect for doing it yourself!

Originally Posted by _ink

Do you think this merge pipe will be a good option?

http://m.ebay.com.au/itm/19165799133...&ul_noapp=true

No, I purchased one of those and it is designed for NA engines. That collector necks down to nearly 2.5" and is very restrictive. Check out Mandrel-bends.com they have better offerings.

Originally Posted by FCobra94

Wagons are dope! I'd rock the shit out of that. Excellent project OP


Neat! Got a DIY by chance?

Not much to it but you can check out my thread on HIDPlanet.com
http://www.hidplanet.com/forums/show...-Reverse-Light

Originally Posted by BMDoublYou

Love the wagon, love the exhaust, love the wheels. What are the specs on those, forgestar f14's right?

Thanks. Forgestar F14 SDC 19x9.5 et19F 19x11 et12R
Not your common offsets for an xi wagon, stock was 17x7.5 et43!

[AZe92]

Originally Posted by ucsbwsr

Must be nice to have a tig welder and skills! Respect for doing it yourself!

unfortunately i don't have a tig welder, just used regular steel tubing and mig'ed it, in AZ so we dont have to worry about rust or anything. Honestly not the greatest quality build as you can see, espeically compared to your work of art, but just wanted to get some volume, couldn't hear the stock exhaust at all. Haven't really heard it outside the car too much, but doesn't seem like i got the crazy turbo noise like you did, maybe cause i'm on stock turbos? But it's dead quite while cruising and sounds wicked at WOT

didn't get a pic off the car with the tips/hangers welded on

[TrollToll]

Originally Posted by AZe92

unfortunately i don't have a tig welder, just used regular steel tubing and mig'ed it, in AZ so we dont have to worry about rust or anything. Honestly not the greatest quality build as you can see, espeically compared to your work of art, but just wanted to get some volume, couldn't hear the stock exhaust at all. Haven't really heard it outside the car too much, but doesn't seem like i got the crazy turbo noise like you did, maybe cause i'm on stock turbos? But it's dead quite while cruising and sounds wicked at WOT

didn't get a pic off the car with the tips/hangers welded on

Any videos?

[JasW]

Nice work, and it really sounds great. But are white letter tires a thing again?

[abren]

Originally Posted by AZe92

Info on the trunk?

[ucsbwsr]

Originally Posted by AZe92

unfortunately i don't have a tig welder, just used regular steel tubing and mig'ed it, in AZ so we dont have to worry about rust or anything. Honestly not the greatest quality build as you can see, espeically compared to your work of art, but just wanted to get some volume, couldn't hear the stock exhaust at all. Haven't really heard it outside the car too much, but doesn't seem like i got the crazy turbo noise like you did, maybe cause i'm on stock turbos? But it's dead quite while cruising and sounds wicked at WOT

Awesome, respect for doing it yourself. Post videos when you have a chance, I would love to hear another single-pipe system.

Originally Posted by JasW

Nice work, and it really sounds great. But are white letter tires a thing again?

Yea, they are back in style for certain enthusiasts, Tire Letters and Tred Wear have created some nice products that work well IMO (assuming they prep, install, and care is done properly).

Originally Posted by abren

Info on the trunk?

PM him.

[ucsbwsr]

While driving out to Vegas for SEMA a switched by backend from BMS E85 Hybrid to BMS pump to make fuel stops more convenient. The older pump flash uses an open wg cold start so here is my wagon at 100% Cold Start.

Also some rough idle presumably from failing injectors. I get a fuel mixture control code along with a few misfiring cylinders. I will be getting some newer index injectors to go in with some new NGKs.

Evan

[_ink]

OP, did you consider going with a 3.5" single? Especially seeing that you've got upgraded hybrids?

[ucsbwsr]

Originally Posted by _ink

OP, did you consider going with a 3.5" single? Especially seeing that you've got upgraded hybrids?

The thought crossed my mind but honestly I never gave it any serious consideration. For a moment I thought about a 3.5 or 4" oval pipe but it would have been expensive.

[_ink]

Originally Posted by ucsbwsr

The thought crossed my mind but honestly I never gave it any serious consideration. For a moment I thought about a 3.5 or 4" oval pipe but it would have been expensive.

I'm thinking about going 3.5" for the performance benefits.

[ucsbwsr]

Originally Posted by _ink

I'm thinking about going 3.5" for the performance benefits.

3.5" or 4" piping would be a good way to go.

Oval piping would be the best way to go if you are inclined! Honestly 4" oval would likely be the best fit for very high-hp N54s (if your welder can acommodate).

Evan

[AZe92]

Originally Posted by Yournamehere90

Any videos?

Originally Posted by ucsbwsr

Awesome, respect for doing it yourself. Post videos when you have a chance, I would love to hear another single-pipe system.

will try to get a video today, i'll start a new thread when i get one so i dont thread jack

Originally Posted by _ink

I'm thinking about going 3.5" for the performance benefits.

just a heads up, looking at op's pictures his car seems to have a lot more room around the rear diff than my e92 has, 3" was a tight fit for me, had to slightly dent the piping as it would barely hit and vibrate around 1.5k-2.5k rpms. also the tunnel brace is different, pretty tight clearance there as well on a e92.

[_ink]

Originally Posted by AZe92

will try to get a video today, i'll start a new thread when i get one so i dont thread jack

just a heads up, looking at op's pictures his car seems to have a lot more room around the rear diff than my e92 has, 3" was a tight fit for me, had to slightly dent the piping as it would barely hit and vibrate around 1.5k-2.5k rpms. also the tunnel brace is different, pretty tight clearance there as well on a e92.

Someone in Australia has successfully fit 3.5" pipes under there.

[flinchy]

you know this (single 3") would actually flow worse than stock? (twin 2.25")

it probably sounds smoother/not too loud because it's smaller/lower flowing lol

it's about 12.5% LESS flow than the stock twin exhaust!

[TrollToll]

People routinely oversize exhaust. At some point you're not going to need any extra flow. Dual exhaust on a civic, for example.

[ucsbwsr]

Originally Posted by flinchy

you know this (single 3") would actually flow worse than stock? (twin 2.25")

it probably sounds smoother/not too loud because it's smaller/lower flowing lol

it's about 12.5% LESS flow than the stock twin exhaust!

I highly doubt this flows worse than "stock." Stock has cats, a resonator, and a muffler (on my 535xi). Also the oem piping isn't 2.5" like some may think, rather it is metric and ends up being ~2.3". Furthermore my piping (maybe E9X too) is compromised/squished at the beginning of the cat-back portion which would be a bottleneck if the rest of the system had c-converters etc. removed.

Out of curiosity what measurements did you use for "stock exhaust".

Evan

[TrollToll]

Originally Posted by ucsbwsr

I highly doubt this flows worse than "stock." Stock has cats, a resonator, and a muffler (on my 535xi). Also the oem piping isn't 2.5" like some may think, rather it is metric and ends up being ~2.3". Furthermore my piping (maybe E9X too) is compromised/squished at the beginning of the cat-back portion which would be a bottleneck if the rest of the system had c-converters etc. removed.

Out of curiosity what measurements did you use for "stock exhaust".

Evan

Not that I agree with Flinchy's opinion, but he did say 2.25", not 2.5"

[ucsbwsr]

Originally Posted by Yournamehere90

Not that I agree with Flinchy's opinion, but he did say 2.25", not 2.5"

Thanks for pointing that out, I overlooked it.