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View Full Version : Dynatec long tube headers


cmd
07-10-2007, 04:00 AM
Do these headers install with no problems to the factory exhaust? I have leaks at my stock manifolds at the block, torqued to spec but still leaking, could the manifold be warped, is this common? Looking for a solution, can't stand the ticking noise any longer.

Thanks

tomp
07-10-2007, 04:23 AM
Not sure, but I have factory take off exhaust. If interested, PM me...

IRA51
07-10-2007, 10:36 PM
I had Dynatec longtube's on my 2000 Z28 and they had nice thick flanges and never leaked. what I had was a problem with driveways they hung kinda low and the car was only lowered an inch and a half, I don't see that being a problem in an H2. the Dynatec headers were a top quality header and flowed like a MoFo. the engine was a 382 stroker and extensivley modifyed ,how they work on a stock motor I can't say .for a heavy truck I would want a header that would boost low end torque . good luck and get them cermic coated ,you will be glad you did in the long run .:violin:

Tallowood_Air
07-11-2007, 12:34 AM
installed easy enough, some of the hardware on the flanges have a tendancy to back off and leak and rattle. I guess you could replace the nuts with some lockers, or have it welded up.

HUMMERcustoms.com/TAZ
07-11-2007, 08:12 AM
I have complete Dynatec header catback system since 2005 and have had no trouble.

I like them allot.

TAZ

cmd
07-12-2007, 05:47 PM
Thanks guys, any where you would recommend purchasing these from?