Next Saturday I am. Yesterday the temp was 92 and I was afraid of the ECU pulling timing and not getting a fair test. Next Sat is going to be around 82 degrees and that's the temp I ran in the last time when I ran my 14.32 and 13.95 corrected. I'll post ASAP when I run The 4" feels like it pulls harder but it's been over 90 deg since I installed it In the am on the way to work I get on it and it feels good!hey did u ever run with the 4 inch intake??????????????