Need advice on Compression #'s
I am looking to purchase an 05 STi with 52,000 miles on it. It has Cobb stage 2 (turbo back exhaust with access port tune.
I had a Subaru mechanic check the compression (wet and dry) as well as Leak Down Test done. I am not sure if I should be "concerned" about the compression results or not? They are as follows:
126, 125, 126, 126 psi (prestty much the same wet and dry)
Leak down test results as follows:
6, 7, 7, 8%
Is there are any call for concern regarding the compression numbers? The mechanic said they are lower than spec, but the car has a tune and that could affect the numbers and he said the more important thing is the consistency between cylinders.
Thanks A LOT!!