135i Turbo Engine (N54 / N55) *General Questions Thread*

[mikead_99]

Originally Posted by AudiKiller

Any thoughts on this? The catless downpipes from cp-e are only for the n55 and I am gettin the twin turbo n54.

http://www.**********s.com/Titek-Downpipes-N54.htm

Also about how much would a shop charge me for an install???

Thanks

CP-E definitely does make N54 downpipes, if they are the brand you want look around a little and you'll find them. I know nothing about the Titek's, but at that price range CP-E and AR get all the recommendations.

With respect to install costs, I've heard $300 thrown out there quite often. On our cars the pipes are somewhat accessible compared to other cars so you could try the install yourself if you are so inclined.

edit to add: AudiKiller, I just pm'ed you some info on potential pricing right now on AR's and CP-E N54 catless DP's. Just went through the price hunt myself on these...

[AudiKiller]

Originally Posted by mikead_99

CP-E definitely does make N54 downpipes, if they are the brand you want look around a little and you'll find them. I know nothing about the Titek's, but at that price range CP-E and AR get all the recommendations.

With respect to install costs, I've heard $300 thrown out there quite often. On our cars the pipes are somewhat accessible compared to other cars so you could try the install yourself if you are so inclined.

edit to add: AudiKiller, I just pm'ed you some info on potential pricing right now on AR's and CP-E N54 catless DP's. Just went through the price hunt myself on these...

Great man thanks alot, Im about to go to work but im online all day so Im gonna do some research. Thanks again for the help

[stealth-twntrbo]

Coming over from 335i

I just totaled my 335i and am looking to get a 135i.

I want to make sure that it has an oil cooler which years and i assume it comes with sport package?

Are the 135's different regarding the oil coolers? Also anyone have any recommendations or things to look for in buying a 135i vs the 08 335i i just totaled?



Thanks.

[bryce]

Originally Posted by stealth-twntrbo

Coming over from 335i

I just totaled my 335i and am looking to get a 135i.

I want to make sure that it has an oil cooler which years and i assume it comes with sport package?

Are the 135's different regarding the oil coolers? Also anyone have any recommendations or things to look for in buying a 135i vs the 08 335i i just totaled?



Thanks.

i used to have a 135i, now i have a 335i. i'm almost positive that all 135i's have an oil cooler. just make sure you get a 135i with at least the sports package. there's also the m-sport package, it adds different rims and the black alcantera headliner. the sports package is great though. m-sport shifter, steering wheel, sports seats, etc.

[bryce]

Originally Posted by AudiKiller

Any thoughts on this? The catless downpipes from cp-e are only for the n55 and I am gettin the twin turbo n54.

http://www.**********s.com/Titek-Downpipes-N54.htm

Also about how much would a shop charge me for an install???

Thanks

Originally Posted by mikead_99

CP-E definitely does make N54 downpipes, if they are the brand you want look around a little and you'll find them. I know nothing about the Titek's, but at that price range CP-E and AR get all the recommendations.

With respect to install costs, I've heard $300 thrown out there quite often. On our cars the pipes are somewhat accessible compared to other cars so you could try the install yourself if you are so inclined.

edit to add: AudiKiller, I just pm'ed you some info on potential pricing right now on AR's and CP-E N54 catless DP's. Just went through the price hunt myself on these...

x2. cp-e makes n54 downpipes. burgertuning.com has them for $570. i'd say $200-300 is resonable to install downpipes

[The1]

I'm under the impression that all 135i's have an oil cooler in the right front wheel well, so if you're poking around, look in there, you'll see the venting by the tire.

However, I did install an extra oil cooler in my old 135 and it made a massive difference, so I think the stock one might be a little on the small side, but at least it's there. It will eventually get installed on my new 135, but it just comes down to when i'm not being lazy.

[bryce]

top

[Dackelone]

Originally Posted by The1

I'm under the impression that all 135i's have an intercooler in the right front wheel well, so if you're poking around, look in there, you'll see the venting by the tire...

Its called a FMIC = front mount inter cooler. The intercooler is located in the BIG middle opening in the middle of the front spoiler, dead center.

The cooler in the front right(pass side) is the oil cooler! ALL 135i's have them except for early '08 Verts I believe.

[The1]

sorry, just saw my typo, I meant oil cooler.

[Phlonx]

Thanks for the replies and opinions!
One more question.

Blow off VS diverter valves

I know DVs are recirculating thus helping in keeping the turbos spinning and improving boost recovery. BOVs release compressed air to the atmosphere. My question is.. Why do so many people choose to run BOVs? Because it sounds cool??? Or am I missing something?

[bryce]

^yes, it's mostly the sound. also, divertor valves being recirculating isn't a positive thing. there's been research that shows recirculation isn't good for the boost control/response. the other main reason people get a bov or divertor valves is because the stock charge pipe can leak at higher boost levels, or pop-off. a quality charge pipe/bov combo can hold higher boost better and limit issues. i've never had any problems with the stock chare pipe, running up to 18psi, but others have. i wouldn't say it's a necessary mod.

[Colt]

Originally Posted by bryce

^yes, it's mostly the sound. also, divertor valves being recirculating isn't a positive thing. there's been research that shows recirculation isn't good for the boost control/response. the other main reason people get a bov or divertor valves is because the stock charge pipe can leak at higher boost levels, or pop-off. a quality charge pipe/bov combo can hold higher boost better and limit issues. i've never had any problems with the stock chare pipe, running up to 18psi, but others have. i wouldn't say it's a necessary mod.

To add onto this, another reason people get an aftermarket diverter valve pipe is because the stock one is restrictive, and also has been known to crack at high boost

[bryce]

^i've never seen/heard of any n54 charge pipes cracking. that's an issue with the n55. the stock charge pipe isn't restrictive, either. look up ETS's dyno results from going from the stock charge pipe to the ETS charge pipe. minimal (if any) hp/tq gains.

[Colt]

Maybe it was an N55 picture I saw

When I ordered mine I wasn't thinking about hp gain, didn't think there would be any; just more responsiveness

[bryce]

Originally Posted by Angerman

Maybe it was an N55 picture I saw

When I ordered mine I wasn't thinking about hp gain, didn't think there would be any; just more responsiveness

cool

[bryce]

up

[The1]

The aftermarket charge pipes will be more responsive for sure, as long as they are stiffer and less accordianed then stock. The stock is very soft and I expect it would expand and contract a lot.

[bryce]

Originally Posted by The1

The aftermarket charge pipes will be more responsive for sure, as long as they are stiffer and less accordianed then stock. The stock is very soft and I expect it would expand and contract a lot.

you're talking about the stock rubber elbox, correct?

[The1]

Originally Posted by bryce

you're talking about the stock rubber elbox, correct?

the piping off the intercooler

[bryce]

Originally Posted by The1

the piping off the intercooler

oh. in that case, a charge pipe won't replace that portion of the induction piping, unless you buy an intercooler that comes with one (ets, stett, i think helix). aftermarket charge pipes just replace the piping leading to the throttle body, that also have the divertor valves.

[The1]

Originally Posted by bryce

oh. in that case, a charge pipe won't replace that portion of the induction piping, unless you buy an intercooler that comes with one (ets, stett, i think helix). aftermarket charge pipes just replace the piping leading to the throttle body, that also have the divertor valves.

I haven't studied the engine that close to see where that piping leads, figured it was part of the charge pipe perhaps, guess I was wrong.

[bryce]

Originally Posted by The1

I haven't studied the engine that close to see where that piping leads, figured it was part of the charge pipe perhaps, guess I was wrong.

no worries. i'll see if i can find a diagram. the charge pipes that everyone buys are just the section taht has the dv's. lower charge pipes are included with some intercoolers










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