tti 2.5 x system on 72 demon 340 review

Yes it does get much quieter inside at about 45mph. I'd like to get an overdrive system eventually that will help the highway cruise. You mentioned the color...this was my grandpas car.../6 grocery getter. If he were alive today, he'd laugh at what we did...he'd think it was a waste. I however had my eye on the Demon since I was 5 when he bought it!