Nfrank89 Posted June 30, 2017 Share Posted June 30, 2017 Hey everyone, I just bought an invidia down pipe and up pipe (new from amazon) and installed them along with a stage 2 base map from the romraider forum last night. sure enough, after 4 pulls I blew the side off of my stock intercooler. This freaked me out so I reloaded the stock map and strapped the intercooler back together. I took it out for a quick test drive and I am easily hitting 21-24 psi... Question: I understand there used to be issues (reading old threads from ~2008) with the wastegate flap hitting the divorcing boss in the invidia downpipe. Does anyone know if they ever updated the design to prevent this? Worst case I'll have to remove it and check for interference marks. Any other thoughts on the overboosting issue? I'll try loading the stage 2 map again to see if it handles it better but i'm a little worried about the boost being that high. EDIT: Problem Solved! See quote below: Alright well it is clear that invidia has not fixed this problem. http://i65.tinypic.com/2vl9u2u.jpg The divorcing plate was definitely interfering with the wastegate flap. I was reaching unsafe boost levels (~20 - 24 psi.) due to this. Let it be known that all invidia downpipes (for 05-06 LGTs at least) should have the divorce plate ground down prior to installation. I used an angle grinder to remove ~3.5-4mm of material and followed up with a wire wheel to smooth it out. http://i68.tinypic.com/14wrvgo.jpg Now the car is safely boosting no more than ~18psi. I feel much more comfortable now. Hopefully this helps others. I wish someone had explicitly pointed this out somewhere. If they did, I could not find it anywhere. Link to comment Share on other sites More sharing options...
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