What is the difference/advantage of each?

 

weld on work awesome. Bolt ons suck and are a waste of money.

 

what would a decent shop weld them in for?

 

bolt ons are GREAT!!!! when you weld them on... haha

 

What will be the main difference when I have them installed vs now with them not?

 

Weld or GTFO!

 

if you have them bolted in right now... then icant imagine you'll actually feel the diffrerence.

its going to add more rigidity definately, i just dont think you can feel it.

 

well put ti this way..i had a 02 gt that would twist and go sideways during a burnout/hard acceleration, then i drove my buddies 01 bullitt which comes stock with subframes, and his car just went straight during a burnout or wot, it was amazing, felt stiffer and was just a better car, i know everything that is diff on a bullitt than a gt so i dont need the fact that the gt is different...i KNOW just givin an example

 

but those stockers are just bolted in, and i dont think they are full length (if its anything like an svt)

i think he was referring to welding in vs bolting in.

 

SVT's do not come with SFC's. Long story short dude, don't waste your money with bolt-ins. Bolt's will eventually flex/loosen under torsion chassis flex. A good muffler shop can weld for cheap. Make sure they have a drive on lift though. That is a MUST!!! Otherwise your doors may never close right again.