i've seen one member using the stock tips with a single in single out magnaflow muffler ... he had a y fabricated for the tips.

another one i have seen on here in the past was two oval tips from borla... its the same tips that come on the borla system.

i say if you do not want to spend $40 - $80 per tip to get new ones just get someone that is willing to do the work to reuse the stock tips. they are high quality but require someone willing to do the extra work to hang them ... especially if you have a one in one out muffler ... if you got a one in two out muffler its rather straight forward for the welder.