I installed the powerplate and it did lower knock by a couple of degrees or more. It is definitly worth a tenth in 1/4 mile. Do it, you wont be dissapointed.As far as the neck i have heard its a good mod but dont have one. Mike
I have power plates on both cars. Didn't do squat I could tell for KR but one car didn't have any anyway. They won't be coming off as I don't think they hurt anything. If they redistribute the air as advertised that is good enough for me.
I have a V4 on salvageV6 and a Duttweiler neck on the GN.
Got about 4 psi. more boost same settings with the V4, and about 2psi. more with the neck on the GN.
Mildly built car that won't be seeing an intercooler upgrade I think the neck is a good thing. Can't go wrong with it.
The V4 is a real good upgrade however.
Bought mine used for $150 plus shipping already welded on and with the adapter hose.
a V4 is an upgraded stock location intercooler made by Tony DeQuick of CAS. there are 3 different row models w/a varying number of rows for each diferent model. www.chargedair.com is his address. some people do not choose buy from him due to the long wait times though.