Thread: Build it yourself Intakes In Polyethylene Plastic

@cause4alarm

Part # 5463K129 is sold in packs of 10 only?
Have any extras I can get from you so I don't have to buy 10 of them?

What velocity stack did you use?
Blox?

yeah i think i have the blox, it's just whatever i had on there before.

someone has a bpi velocity stack for sale in a 3" right now that should work out the same (i think blox is a copy of the bpi)

just be carefull with your couplers, i'd do 2.75 to 3.5 for tb to first pipe,
then 3.5 to whatever depending on what maf you run (on mine i'd like it a little over 3)
then most maf adaptors are 3" so 3 to 3.5
then 3.5 back down to 3 if you are running that velocity stack, otherwise find a 3.5" filter.


not really looking to ship that thing, it's just not worth it. you can probably pick up the same thing at homodepot for a buck or 2 .

So u using which maf again? Is it a beneficial upgrade when u still have to choke down to a 3" or less maf? Any dyno results?

The plastic pipes are 3" on the inside, but 1/4" thick so they are 3.5" on the outside. That's why things get a little harder with the couplers. You're not choking anything down with a 3" MAF I don't think.

i really want to get one of these things, i could make me an my gf both a decent shortram intake.. i also need to change my maf out cause i do believe its losing me some power.. either that or the 2.5 exhaust is idk..

what MAF are you running?

stock de maf but 185whp 142wtq with n1's ssac 2.5" exhaust thats std correction..

i mean in all fairness the dyno op had some settings wrong, for example my rpms were showin 9700 rpms when it was really 7700 rpms.. so i really dont know what kind of effects that could have on the readings.. but i believe theres more power to be had.. my afr's were pretty spot on an i played with the timing but advancing an retarding (the timing map) only lost me power..

External diameter = 3.5"




Internal diameter = 3.2"

I thought the pipe was multiple pieces and it snapped together or something.
Turns out it is one piece and you have to cut it and then use couplers.
I guess it would be a cool time to learn how to plastic weld.