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Originally Posted by Maverik259
Quote:
Originally Posted by DuSh
Quote:
Originally Posted by nitemare
Yeah I feel you on the X5M plugs but being that they are 3x the cost now I can just get the NGK Iridium for $14 each which will last longer and be more keen with higher ethanol mixes. Platinum does not like ethanol, I will probably daily on E30 mix.
Catless downpipes is plenty enough, the newer turbo BMW exhaust actually flows really well. The biggest flow restriction is the factory catted downpipes. I can't justify the cost for the gain of a few more hp/tq....let alone the possibility of drone and the obnoxiousness. I have a 535 as my race car: built engine, high stall converter, built trans, single 3.5" aluminum driveshaft, Ford 8.8" rear, bigs and littles, yada, yada.....so I will leave the race car stuff to that. I just want a bad ass quiet cruiser to pull the race car and knock off an 11.50 pass if I want in a 5200# brick.
Did a ton of research today on the X5M filters and found some awesome information you can pick them up form Autozone for $29 a pop each side.
I found a great cross reference site https://www.pgfilters.com/filters/ where you click on "cross reference" input both L and R X5M part numbers: 13717850056
13717500555
And it cross references out to a much of manufacturers: Federated, Parts Plus, Premium Guard, and Pronto all with the same part number so one of the ones I listed must be the parent company. The BMW part number cross references out to:
PA99259L
PA99260R
Also, list a separate manufacturer: STP with part numbers:
SA90211 (L)
SA90212 (R)
Here is the listing for Autozone STP filter:
https://www.autozone.com/external-en...74399_304261_0
Also here is Ebay search result either from searching "PA99259L" or "PA99260R"
https://www.ebay.com/sch/i.html?_fro...LH_TitleDesc=0
So now we can save $50 for a set of X5M filters and go down to the local Autozone or order online. Just replace once a year like normal and you're good to go.  |
Nice find! I wonder if other parts can be found like that!
P.S. There're also Dinan air filters that flow even better than x5m, and surprisingly they fit lengthwise and widthwise (one of our forum members installed them, but wasn't been able to close the lid), but they are too high and stock lid won't be closed - they need Dinan lid - which goes for $1k lol. if not for the lid issue - I would have gone for them (they are like $130 each).
https://www.ebay.com/itm/Dinan-D401-...5.c10#viTabs_0 |
I doubt the third party manufactures are going to be equivalent to X5M filters. Maybe size but not on the bench flow. Plus I bet they are the same as 50i filters. K&N makes a set for both but it's the same filter and it's only the size of the 50i not the M. |
I'm going to change my spark plugs ASAP since I have 46k miles on my 50i. Should I also have my Indy replace coils?!?!?