The floor pan (on drivers side of the transmission tunnel) changed for 1975 to accommodate the Catalytic converter.
I also used the TTI exhaust on my 69 Dart. Quality was great. The drivers side head pipe was a pita to get in. Manifold bolts were hard to get to. Had to cut up a wrench to get the bolts tight. I have a column shifter, and I had to modify the linkage. The only complaint I had, was the head pipes ended right at the trans crossmember. The pipes fit so tight that I couldn't use a standard clamp. I had to order band clamps to keep it from banging on the crossmember. Also, I had to use 2 gaskets at the manifold to get the passenger side tube to clear the trans crossmember. Again, the quality was great. No issues in several years.
Read with interest and hope to be ordering the system for our 70 Dart soon. I was wondering about modifying the column shift or kickdown linkage but hopefully not. Thanks for posting!
Great and detailed write up, thanks for the pictures and suggestions from all of you, especially the O.P. I'm just curious, how much did the system cost shipped to your door? Also, what would it be like compared to an Accurate brand exhaust system including price? Sounds good, BTW!
Thank you! For my cost, being that it was: 2.5" pipes H Pipe With Mufflers Manifold back All in was $820 shipped to my door. This was in comparison to around $1,100 for an Accurate system that would be very similar for my application. I've never heard anything bad about Accurate's systems (a few qualms), and they make it a bone stock swap in. I looked the more performance aspect of TTI (and it was cheaper!) and that they also had great reviews. Can't go wrong with either system.
Thanks for your response. It sounds like a good deal to me, less money and more power is a win/win situation. I just heard from several people that the Accurate system although pricey, fits like a glove with no hassles. But myself, I am all about tinkering with it a bit to make it work like you guys did and especially the bonus of more power and less money to boot. To me that's a better win/win situation than stock any day of the week!
Thank you for posting the great pics. I am going to buy their 3" tail pipes Looks like the 2.5 " fits well.
Thanks, I had the exhaust hanger issue. I also luckily had some of the same style exhaust hangers you used/described here at the house. THANKS. My Dyno-max mufflers had DANGEROUS sharp metal shards on the ends. Also some of the supplied collector bolts were "too short by a thread", the passenger rear collector bolt would never fit so I had to go down by one bolt size. This is an outstanding system but you have to ensure that you are patient and get it right, and then tighten it up.... THANKS MAN
