New guy new to BMW have some questions.

[LMFAO JDM]

Ok so to start I say hello (hope im in the right area)I have posted a few times befor and was looking for a 335i but I have found a nice 135i that I am looking to get into. I am stepping out of my b7 s4 that was heavily modded. And as I get into the 09 135i I am looking to take the same path. But I'm not to sure on the path to go to get the maximum power out of the car. So if some one could point me in the right direction to that would be great. I am looking for dyno sheets with mods a hp. I also don't know what exhaust to go for I want LOUD (I am coming from a straight piped v8) and to have nice hp gains and will support other mods i don't know to go with hpf, bark, active autowerks catback also what downpipe to go with ar design but I am going to go catless just don't know what one. So I am hoping to get some good info to head in the right direction. I tryed searching but I can't seem to find quite what I'm looking for. (sorry for any spelling or sent that don't make since I am using my phone)

[MM3]

What year are b7 s4? 2007 and up? they are nice cars! just wondering why you are stepping out of one. i was actually looking and interested on one (2006-2007).

[LMFAO JDM]

It was a 2005.5 b7 and I am getting out because I'm only 18 and the car does not make the power I would like it is nice and luxery great family car with pep but I want something more powerful and has luxery I was also thinking a c5/c6 corvette but they are just not a good daily driver.

[ken1137]

Here you go...many dyno results for your reference. I'm on Stage II aggressive

http://www.cobbtuning.com/BMW-Access...ap-bmw-001.htm

Also...if you want loud with good performance then try HPF. Otherwise, Berk race axle back with resonated mid pipes, and AR DPs.

http://www.1addicts.com/forums/showthread.php?t=591492

GL.

[JefryHorizon]

Dynos, builds, videos and support ====> http://www.n54tech.com/forums/

A turbo I6 will never replace the roar of a straight V8. With that said, I've driven around in my car with no exhaust system, no mids, no downpipes just for the heck of it while installing downpipes. To be honest.. It's pretty darn loud putting the car in the "makes everyone's alarm go off on the street" loud so I'm sure you will be satisfied when you have the opportunity to start taking your car apart.

[LMFAO JDM]

If I had ar catless dp and hpf catback since that is straight piped wound I have a back presure problem?

[AirMech135i]

Turbochraged car. Do not worry about back pressure. In fact, less is better.

[LMFAO JDM]

Ok thanks