the factory plug is a rip... just go down to your local auto shop and buy a freeze plug the same size and hammer it in with a rubber hammer...... pluging the exhaust is just as easy.... cut off the tube comming out of the egr flange and weld the hole shut grind it smooth and bolt it back up with the stock gasket........ cutting that little part sticking into your intake from the egr is a joke as far as getting power out of that............ and belive it or not you will still pass emissions without the egr unless in cali....... i had mine tested after no egr and still passed....

 

The factory plug will seal, is held in place by the stock bolt the egr uses, won't fall into the intake and cause damage, and costs less than 12 bucks...... joke? Not to me, but I've had an engine blow up because of something that got past the intake valve.


BTW the part number is 12558346. Check and make sure this is the right number before ordering.

 

hwo do you get to the egr assembly to plug the hole? sorry i should probably look before i ask but im already here

 

ok and also about the LT's, if i get them with the ORY, still avoiding the tune initially will i need some rear o2 sims? a buddy of mine got some LT's and his SS ran like crap because his o2's were no where and still trying to read...

 

you will need some sims or the comp will freak out saying the cats are blown out

 

ok i thought i would need a pair or o2 sims, then i just tie it all up in the frame or somethign and let it sit