If you want serious gains from the N/A V6, you need to remove the restrictive factory manifolds with their log design and integral catalysers. That's a real reduction in exhaust back-pressure and some serious HEAT removed from the engine bay.
I didn't want to wrap the bottom half of the motor in heavy pipework, so I chose the lighter/cooler option. The 2bular 3-1 manifolds & bigger-bore downpipes combine to reduce engine bay temperatures and give an excellent increase in power and torque after re-mapping. Weight of this combination is 8.8Kgs.
It is very important to understand the 2bular exhaust components for the N/A motor are different from the supercharged versions - different bores for different motors.
Plug-and-play wiring extensions for the re-positioned Lambda sensors and OEM gaskets + fitting kits are supplied with your exhaust.