Borla R&D: Comparison UEL v EL Header 2013 Scion FR-S/Subaru BRZ

[Zadkiel]

Originally Posted by AlvinT@Borla

The Borla 140496 Cat-back does not move or delete any emissions-related components keeping your vehicle emissions-compliant.

The Borla 17284/17285 Headers do not have restrictive catalytic converters (Borla does not make or sell catalytic converters) and are designed for off-road track vehicles. Deleting, re-locating, or substituting the factory catalytic converter with an aftermarket unit may violate your state laws and make your vehicle non-compliant. Please check with your state laws regarding emissions-related components. Thank you.

I wasn't talking about the catback, and since this thread is about headers.....2+2=4.....

[Got3n]

so all this talk about legality is that about the exhaust systems or the Headers alone,i have an exhaust already and looking to get the perrin overpipe and frontpipe and some headers, just want to be sure the Borla headers alone are street legal. Also i love the EL sound more than the UEL ^_^

[ngabdala]

Originally Posted by ABQautoxer

94dBA at what distance?

When is this dBA measured? Idle?

I'm trying to figure out if or how to get UEL 170284 and Cat back 140496 within legal sound limits for my state

[RiskyTrousers]

I'm running the UEL headers and their cat back with the stock mid pipe. Not loud at all, perfect volume IMO. Sounds amazing when you open her up!

Sent from my HTC One X using Tapatalk 2

[seven]

So when can I buy some Borla UEL Headers!?

[xjohnx]

Originally Posted by seven

So when can I buy some Borla UEL Headers!?

looks like now: http://www.borla.com/products/produc...prod_sku=17284

[xjohnx]

Originally Posted by naikaidriver

I have to admit that I love the sound of the UEL but the sheer noise level bothers me for daily driving. Borla makes a quality product and I have been a fan for many years but I'm not interested in being harrassed by the police on my way to and from work every day.

Can we please get a dB measurement?

Scott

I'm pretty sure the noise level is more attributable to the exhaust they have installed on the car than the headers.

[getbent]

Originally Posted by RiskyTrousers

I'm running the UEL headers and their cat back with the stock mid pipe. Not loud at all, perfect volume IMO. Sounds amazing when you open her up!

Does the missing header cat cause a CEL?

[Captain Insano]

Originally Posted by xjohnx

looks like now: http://www.borla.com/products/produc...prod_sku=17284

Nice price!!

[Zadkiel]

Originally Posted by Got3n

so all this talk about legality is that about the exhaust systems or the Headers alone,i have an exhaust already and looking to get the perrin overpipe and frontpipe and some headers, just want to be sure the Borla headers alone are street legal. Also i love the EL sound more than the UEL ^_^

Borla headers aren't street legal and they have no plans to make them either.

Originally Posted by getbent

Does the missing header cat cause a CEL?

Yes unless you find a work around.(Spacers or a tune that cancels it.)

[nashsnazzy]

So if we put this UEL on the car with a stock exhaust or another exhaust with a single cat will we get a cel? Does the use of this UEL leave some sensor disconnected?

[Zadkiel]

Originally Posted by nashsnazzy

So if we put this UEL on the car with a stock exhaust or another exhaust with a single cat will we get a cel? Does the use of this UEL leave some sensor disconnected?

I can't tell if there is a spacer in the exhaust or not. I don't know which specific o2 sensor does what, but usually the removal of either will throw a code. Haven't done it on the BRZ, but I'm speaking of past experiences.

The issue with any non-catted header is that it removes an emissions device. Some people have said they get away with one missing, but I doubt it. I'm fairly certain that they are using a spacer though, which tricks the o2 sensor into thinking it's seeing cleaner air.

Not to mention if your state does the visual inspection too. If they know you're supposed to have 2 catalytic converters, and they only see 1 you fail. That's in addition to the OBD-II check to see if you have or have recently had a CEL.

That's why they state these headers are for "off-road use only". It's to make sure no one can come back and blame them for not passing an emissions test. They know no one is just going to slap them on for track duty, then yank them off to pass inspection. It's not worth it if you're constantly removing and re-installing headers and the gaskets. Not to mention the wear on bolts, nuts, studs, e.t.c. to do that repeatedly.

[seven]

Originally Posted by xjohnx

looks like now: http://www.borla.com/products/produc...prod_sku=17284

GREAT SCOTT!
Those weren't there a few days ago!

[getbent]

Originally Posted by nashsnazzy

So if we put this UEL on the car with a stock exhaust or another exhaust with a single cat will we get a cel? Does the use of this UEL leave some sensor disconnected?

From the picture, it appears that there are 2 bungs on the header (one in the passenger-side exhaust ports and the other in the collector) so I don't think any sensors will be left out. I would also like to know from the person who posted they have this header already whether they did anything to prevent a CEL or if it even causes one.