How good is the stock catback? MAC LT w/ o/r x-pipe owners enter!!!

[1bad04GT]

I plan on buying MAC LT's (per you guy's suggestion), an o/r x-pipe, and MAC flowpaths. Can I just weld them in to the stock catback? Or is it worth investing in a 2.5" catback? I ultimately want to have about 350 rwhp. Will the stock catback support this much power? Also, does anyone have an exhaust clip of this? I couldnt find one on DonJohn's page. My buddy with an 04 terminator has BBK LT's, BBK o/r x, and MAC 3" catback and it sounds but I dont know how similar mine will sound. Any help is greatly appreciated!

 

[95BLKGT5.0]

The stock catback will bolt right on. But the stock catbacks are very heavy and have so much restrication I wouldn't want it.

I have Mac LT's, Mac O/R Pro Chamber and MagnaFlow catback and it sounds sweeeeeeet.

 

[mackey]

Your car will sound completely different than his.

 

[DaveB]

It should support it just fine. But I hate the puny stock tailpipes. I think the mac's have 3". Not to sound like a ricer but the stockers look like straws. I wish my Dynomax's were bigger than 2.5". But ya the pipes will hold you back probably less than 10rwhp.

 

[BlackVert]

grady (final-5.0) has long tubes and a high flow cat pipe with stock cat-back. iirc, he makes 293 with his combo and his torque curve is nice and flat. he also said he might be able to eek out a few more with a cat-back, but he does not want the dreaded drone....

he also has a stock maf and t/b ....