Recently installed my UTEC running stage 2 map on my wagon.
I had been getting readings up to 1.2 bar from my blitz DTT, which seemed to make little sense. The stock turbo setup should not be boosting that high.
After the UTEC install, the gauge would read up to 1.4, consistently in the mid 1.3 bar range. After boosting at this level for a day or so, I noticed a high pitched whine when coming on boost. I also found another boost gauge lying around the house and verified the readings.
I found a loose line from the UTEC boost controller (it was used and I guess it was loose) and zip tied it. Since then the readings have maxed out at 1.1 bar, but the high pitched noise has continued.
It only happens when I'm boosting more than 5 lbs.
I am wondering if there is any explanation or remedy other than turbo replacement. If I must replace the turbo, should I just buy a stocker off ebay for $100 or is it worth the money to get an STI turbo for $300? Is the 04 or 05 STI turbo an easy swap?
borla hush catback
i was planning on doing a turbo swap about a year from now... i would not mind forking out the extra 200 bucks in the mean time if the STI turbo yielded another 15+ horses and or increased durability