aftermaket list

[spam052]

hi guys. im new to the bmw world. just got a 128i and was wondering if you guys could point me in the right direction as to wich are thhe best bmw aftermarket vendors. im looking to upgrade my suspension and maybe get a tune. i read somewhere there is a 280hp tune nnot sure if its true.

thanks on any help you can give

[shadowiix]

To me there are no best vendors they are all about the same. Hp auto works
Seem to know there stuff and sells good products. There is no tune for 280 and I doubt there will ever be. One. As far as suspension kws seem to be the most popular. Blistien has life time warranty on their coil overs. For springs the most popular are the hr's. The only strut bar is from mason engineering. Just browse the forum. Welcome to
The less loved of two e82's club

[raceman]

In Europe 270-280HP from N52 engine is pretty standard solution only by software optimization. (from big names it is offered by DS Motors (1800 Eur) and Dahler).
Add intake/exhaust and you are around 300 HP and nicer reving machine than stock 135i.
Properly tuned 125i rules, I would take it over stock 135i anytime.

[Mad Dragon]

The intake and exhaust is what gives the N52 more power. Look at the x30/3.0si engines with ~260hp; they have the DISA intake, while the x25/28 cars don't.

I doubt you'll ever see 300hp out of one of these engines.

[shadowiix]

I remember a few years back that a lot of these engines that were in the z4si and the x3si where there engines just failed out of no where. I don't know how strong our engines are. I know they
have remedy this problem but I won't be doing anything extreme like chip tuning super charging or the exhaust manifold upgrade knowing that there is a high chance that our engines will fail in the future. Here in the us there are also emission test and annoying cops to deal with. Which makes things here a lot harder to get done. If dinan comes out with anything that shows huge hp gains like chip tuning or super charging I will buy their stuff since they have an unbeatable warranty.

[randomquickness]

browse through the "vendor feedback" forum and you will find some vendor reviews. My favorite so far is gravityautosports.com. Great people to deal with!