Boss H pipe w/ side exhaust Question

[FIVEHOE]

Alright, so picking up some christmas mods and I plan on getting the Boss H pipe with side exhaust paired with gt500's. My question to you guys since I couldn't find anything is: Can I throw these on without getting any codes on the dash or having to get a tune?

I'm new to these mods so sorry for the noob question. Thanks!

 

[momstmg]

no tune needed as long as you have your cats

 

[CW1343]

As stated above, as long as you leave the cats alone it will be a simple bolt on. No tune or codes.

 

[USNjocson]

Boss H with side pipes and GT500 axle back is the best combo without being crazy loud

 

[mikerob]

I second that. Never should have got rid of mine.

 

[hdmlnium1]

I agree, I have the Boss 302 h pipe/ side pipes with GT500 axle back.. No restrictor plates, and gutted cats.. I love the way it sounds.. I have a tune with the rear o2's turned off so I don't get any check engine lights..
But as others have mentioned if you leave your cats alone you will not (need) a tune.. But a good tune really isn't a bad idea for more power..
bill