Header fit?
Thread Starter
Intermediate
Joined: Jul 2006
Posts: 25
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Header fit?
2012 ls3 base with npp factory mufflers. I'm trying to get long tubes and an x pipe. Will the normal Texas speed headers fit? They say yes. I thought there is some difference after 2008? Over axle? Is that not a consideration since I plan to retain my stock mufflers?
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
As long as they're providing a 2009-2013 style x-pipe it will be fine. The same headers fit all the LS3 Vettes, the difference is in the x-pipe.
And yes, in '09 GM changed the angle of the passenger side over axle pipe leaving the x-pipe.
Are you eliminating the extra set of cats too? Make sure they know that.
And yes, in '09 GM changed the angle of the passenger side over axle pipe leaving the x-pipe.
Are you eliminating the extra set of cats too? Make sure they know that.
Thread Starter
Intermediate
Joined: Jul 2006
Posts: 25
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https://www.texas-speed.com/p-3198-t...e-w-02-ex.aspx
They are claiming these will fit....I'm a little skeptical
They are claiming these will fit....I'm a little skeptical
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
Well, yea, the stock pipe is 2 1/2" all the way back. Their 3" x-pipe "should" include a reducer to get to your 2 1/2, if that's what you're worried about. Should just call them and ask.
Le Mans Master
Joined: Dec 2003
Posts: 5,047
Likes: 252
From: San Diego
I have a set of Texas Speed headers on my LS2 coupe and fitment of the headers were good but not so great on the x pipe and connection pipes. If you do decide to buy headers from them make sure you pre fit the connection pipes from the x pipe to the exhaust. Mine set fit like crap and I had to modify one of the slip ends to slip over the other end.
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Thread Starter
Intermediate
Joined: Jul 2006
Posts: 25
Likes: 0
Spoke to them. They wouldn't assure fit. And are aware that the x pipe is different towards the back on the 10 and up. But others have "made it fit" and no one sent it back....I guess the issue is the x pipe the rest is ok. And making the stock npp mufflers mate up.