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Originally Posted by Polygon
There are some simple things to looks at when picking an exhaust for a turbo-charged car.
1. Bigger is better. Get at least a 3" mandrel bent system. Matierial isn't improtant unless you want bragging rights.
2. You do NOT need backpressure. Especially when the turbo itself is a huge restriction. Once the exhaust has left the manifold it has all the inertia it needs. Exhaaust simply needs velocity. It is your job give it the least restrictive path out.
So a side exit would be more powerful. It is quite simple, less bends and less changes in direction means more power.
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no offense to you other guys, but i probably hold his opinion above alot of the resposes, though they were good and informative, reason is cause his exhaust system for the baron was just as restrictive as the jetta is and im sure he got alot of power off of it when he upgraded. so thanks and please keep the info coming.