dump tube

[L8TR V8S]

hey guys i was wondering what you needed to do to have or make your dump tube... i dont know if thats how you'd you say that but i have a 3 inch exhaust with no cats and i know if you have a 3 inch exhaust then a dump tube is effective.... and it feels like i creep so if anyone can respond that will be sweet..... thanks

 

[gsturboman]

you can use it on a 3 "inch exhaust. if you have a internal wastgate, its pretty much useless though. it helps for making no boost spike or creeping. let me know what size exhaust u have an about the wastegate

 

[FastGS-T]

did you try porting your stock o2 housing???

 

[L8TR V8S]

i do have an internal wastegate(brand new) and its a 3" exhaust all the way back with no cats and i do have it ported...

 

[munguiaoh]

did you try porting your stock o2 housing???

port! port!

 

[FastGS-T]

port! port!

i have the o2 eliminator exhaust, which has the external dump tube welded back into the exhaust.... but thats not what helped me, porting the housing is what helps, anything above 16psi makes mine spike a little on my evo3

 

[gsturboman]

go ahead and port my friend. it should help but as for the interanel wastgate, my friend had a big prob with the dumb and the wastgate. big mess but do that and see what happens