Anyone ever install a Mountain Performance 144" kit??

So I've recently started to strip down my stock 04 Viper and piece together the tunnel extension kit, rail extensions and also relocate the skid. I've ran into a few issues along the way and I'm wondering if anyone else has experienced the same....

I installed the Tracks USA rail extensions, these were a piece of cake, just took some very minor adjustments with a file to achieve a perfect fit.

I've drained the cooling system and removed the seat and rear section of the tunnel along with the rear heat exchanger, here's where the issues start.

I now have the tunnel extension riveted in place and it is not designed to accomidate the rear heat exchanger, it is designed to accept the rear corssover tube which I would rather not use. Should I get the heat exchanger modifided (which would mean cutting off the aluminum connecting ends and shortening them up and getting them welded back in place) or should I just use the crossover tube? Also, Mountain Performance gave me hoses that have a smaller diameter than the system on the Viper.

My next concern is, I ordered a set of 8 tooth anti-rachet drivers, there are only two and the original driveshaft set-up has four drivers (includes two outer ones) Is it OK to use only two or should I order two outer 8 tooth drivers from Yamaha???


I would greatly appreciate any help/tips/ino that anyone has to pass along my way

cheers

I've checked it all out, if I use the rear cooler that I have it will hang down about 1.5 inches from the rear and it will take a lot of modifying. I'm thinking right now that the easiest route may be to order a mountain max rear cooler, I checked out the one on my 02 Mountain max and it is much smaller and would fit right in, any thoughts?