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-   -   Cold air intake suggestions (http://forum.e46fanatics.com/showthread.php?t=650003)

AKe46 02-18-2009 07:32 PM

Cold air intake suggestions
 
What cai do you guys recommend for an 03 325i? My budget is about $300. Something with a big power boost. I was looking and Injen. What do you think about them?

trippmann 02-18-2009 07:41 PM

their is no intake out there now that will yield any major power gains. conversely on the newer e90's (06-xx) injen has made an intake that has been dyno proven by normal people to yield about 10hp. on the e46 however an intake shark injector and headders, all yield minimal gains, with headders being the largest gains. the e46 can only be made substantially more pwerful with cams, super/turbo charger, and a differential, which doesnt creat more power but puts it down better. goodluck!

SerbBMW 02-19-2009 09:00 PM

also interested in getting a CAI, i just read in another thread someone said that the performace gets worse cuz ur cpu slows down timing or some ****?? is that true?.... is the KandN cai any good? im thinking bout getting that cuz i can get it at discount price. is a cai a waste of money?

SerbBMW 02-19-2009 09:02 PM

http://www.knfilters.com/search/prod...x?Prod=57-1002

k7780446 02-19-2009 09:03 PM

i have a conforti intake and recommend it! sounds great! but like stated before not a lot of power gains in any CAI

inlinesicks 02-19-2009 09:05 PM

Quote:

Originally Posted by SerbBMW (Post 9438855)
also interested in getting a CAI, i just read in another thread someone said that the performace gets worse cuz ur cpu slows down timing or some ****?? is that true?.... is the KandN cai any good? im thinking bout getting that cuz i can get it at discount price. is a cai a waste of money?

Yes.

tom @ eas 02-19-2009 09:08 PM

Quote:

Originally Posted by AKe46 (Post 9431245)
What cai do you guys recommend for an 03 325i? My budget is about $300. Something with a big power boost. I was looking and Injen. What do you think about them?

Save the money and get a high flow filter instead:

http://www.europeanautosource.com/pr...pg&w=220&h=165
Macht Schnell - M54BX High Performance Panel Air Filter
http://www.europeanautosource.com/pr...oducts_id=2204

Cold air intakes provide little or no differencein HP. Since we're right around the corner from you in Santa Ana, you can already drop by and pick one up.

aggieE46 02-20-2009 09:36 AM

Agree. Drop in filter.

CzarStav 02-20-2009 09:45 AM

I got a K&N, I was going to drop some loot on something more expensive but our cars are factory tuned almost to the max so there is very little you can do to increase performance, short of Turbo/SC. If you get an intake, headers, full exhaust, this helps but it's quite a large investment for small performance gains. Plus, our stock intake systems are pretty effecient as is.

Riverbmr3 02-20-2009 09:50 AM

Its all about good sounds

Bimmer Dude Xi 02-20-2009 07:40 PM

Yea, these guys are right. I just bought the Dinan Air Box system and along with that I also bought the K&N intake tube. It should go together well. I haven't read nor seen this combo, I'll try it out and make a update. I'm pretty sure I'll need to add the software in the mix.


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