Tunnel mod

[Plumber1]

Does the tunnel mod make a lot of difference to cabin temps, just wondering if it's the next thing I should do

[bzguy]

well, it should !

I just did it myself (see my 'winter works thread') but haven't got the car out yet.

If you look into the tunnel, you can realize that it gets damn hot in it : all that tubing that carries hot liquids from front to back, all in a tight & closed area.

Heat is stuck in the tunnel & rises, so into the cabin, through the tunnel walls.

Feeding some cold air from the front air intakes will definitely cool that down !

[BobE]

In my opinion it makes a huge difference and is a very well worthwhile mod. Having done the mod on my car I`d hate to go back to one that`s standard.....

[joust]

Plumber1 said:

Does the tunnel mod make a lot of difference to cabin temps, just wondering if it's the next thing I should do

Yes. Chalk and cheese. Get it done.