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How much would it cost to put straight pipes on a 2001 GMC Yukon XL?

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usually around 300 from the manifolds back at an exhaust shop. For a kit from magnaflow expect around 500-600 bucks, plus installation costs.
 
go ARMY said:
I know I didnt list what type, but can you give me an estimate?
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Why would you go straight pipes?? Your going to loose HP and Torque right at the bottom of your RPM to mid range. Unless your planing to scream your engine at 6000 RPM all day long. :rolleyes:

The other issues is that without any back pressure, it's going to throw off your vacuum in the engine which will throw off your sensor readings to your PCM which will cause issues.

The modern Vortec engine is an electronically-injected and computer-controlled powerplant. The computers in these engine have a myriad of sensors throughout the engine system that allow operational variances to be detected and adjusted. The idea is that, based on several sensor readings, the computer adjusts the fuel curve to accommodate the power load on the engine and do it efficiently. The goal is to achieve maximum power while maintaining necessary manifold vacuum in order for the engine computer to function properly.

So just replacing your exhaust with a straight pipe exhaust will cause you ore issues then it's worth. Replace your system with a known cat back exhaust system like http://www.magnaflow.com/ or http://www.flowmastermufflers.com/, there performance cat back replacement exhaust are tested and tuned for the right vehicle application.

Good luck and hope this helps. ;)
 

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