i don't know for sure if these are TTi's or not, however, i've been really studying my headers and they just seem like they could have been designed to fit better. the head bolts are ARB's but the front bolt is right beside the tube and you can only get it off with an open end 3/8th wrench that is at least 6" long. the front tube could have easily had more clearance from this bolt. and the descending tubes could have been grouped closer together which would have made these headers clear the engine and fender well much better. i would think whomever built these headers would have done a little more R&D on installing and removing these things. i watch the 4x4 shows on Motor Trend TV all the time and watch the guys build off-road buggies from scratch from tubing. they come up with all kinds of complex bends and angles. maybe the headers for big block A-body Mopars were made years ago before good tube bending machines were available. it certainly seems to me that current technology could solve the problems of fitment with these headers.
