Hey guys im trying to build my 2008 535i to get around 420 RWHP how can i do that? i know im probably gunna order the cobb and i got a section 3 exhaust on the way what else can i do? i dont suppose that Cobb has the ability to be dyno tuned by a dyno guy right? any help would be appreciated.

Mahalo,
Puna

 

I believe there is a turbo upgrade available. If 535i and 335i uses the same turbo then i am 100% positive about the turbo upgrade.

Best way to add HP to forced induction engine

1. Downpipe
2. Exhaust
3. Intake
4. Turbo
5. Intercooler
6. Tune
7. Alcohol/Meth injection
8. Better flowing manifold

Beyond this point, you wanna make sure ur engine can handle the power. On volvos their biggest weakness was cylinder sleeves; they tend to crack. Solution M.I.D. Sleeves

 

Thank you, i dont want to use meth.
1. what brands and how much?
2. full exhaust? or run catless?
3. DCI?
4. get a bigger turbo?
5. dont we have to relocate something?
6. CObb or JB4?

 

Turbo upgrade - its just bigger compressor wheel inside the same housing
http://www.cesmotorsport.com/documents/178.html

downpipe
http://www.amsperformance.com/cart/a...race-cats.html

Tune - not sure JB4 might be a good choice ( the important thing is to find a tuner who has the TUNE for the mods you are planning to do, or can dyno tune your car - every car is different and without knowing the actual A/F chart you dont wanna just slap on standard of the shelve tune

Exhaust - catless is better but gotta find a solution for the check engine light


You need intercooler - I dont think there is any aftermarket intercooler available for 535i, 335is and 135s have plenty. I think 535i has dual purpose intercooler to cool power steering too.


now if u are a true baller, get an LSD with a diff gear ratio.
u might need bigger injectors too depending on how much air ur sucking in.

 

I'm beginng to think 400 hp w/o meth or a way bigger intercooler is imposible in a 535...

 

i just installed my JB4 and DCI and went straight to get 100 octane gas and oh my mutha loving god! my car is on a beast mode!

 

TL003, werent u working on a custom front mount intercooler for 535i?

if you can contact BELL Intercooler and see if you can send them your core and they can simply thicken it up

 

Custom intercooler was made and intsalled, works great up to about 17#'s of boost.

 

thanks guys, nice! yeah we have those dual purpose intercoolers that are really small. but as for exhausts can i just take out my cats and run straight through to my section three and use the cobb to clear the codes?

 

the exhaust piping on e60, at least on 530i, is pretty straight and easy. If you can find an exhaust shop, have them make a complete 3 inch or 4 inch straight pipe. The biggest hp killer is your first cat right by the manifold. But removing that is definitely going to trigger a check engine light. Now on most of the cars you can eliminate the check engine light, caused by a/f sensors, by proper tune, or you can use o2 sensor eliminator which moves the sensor away from the pipe, kind of like a spacer, to eliminate the check engine code.

BMWs might be more bitchier and sensitive, when it comes to messing around with sensors.


if I were you, given it is a 535i, these are the things i would do:

Downpipe
Exhaust, remove the mid cat.
intake
Tune



and be done with it. you should have more than enough power you need for street driving.