Help !!! lost boost

[67GT500]

Helping a freind who just bought an 04 Cobra with a bassani cat back system, everything was fine, he bought a bassani x pipe & converters, we installed them now he has no boost. Any help appreciated.

[blk04cobra1]

check all the vaccum lines and connections...something may have gotten unplugged when swapping out the mid-pipe...

[67GT500]

I made a quick look today didnt see anything but I will look again. Thanks

[93KingCobra]

So did you lose all boost or just a couple of pounds?? When I installed mine at stock I was pushing almost 10 but after the x & cat-back I was at like 8 pounds.. I guess the Bassani's just flow really well..

[InfamousSVT]

So did you lose all boost or just a couple of pounds?? When I installed mine at stock I was pushing almost 10 but after the x & cat-back I was at like 8 pounds.. I guess the Bassani's just flow really well..
Good question are you seeing any boost at all?
Also check the vacuum line connection underneath the dash behind the glove box, some people have had that connection pop loose.

Good luck