Muffler Delete




IC Air dam- Trying to give the IC a more direct flow of air. I Watched my two IAT readings after this install and the two readings were within 3 degrees of each other, after 20 min of city driving hitting it at around 50-90. Also helps protect the IC from curbs.
Before:


After:

 

What the air damn from?

 

03 Cadillac deville i Cut it to fit.

 

Did your coolant temp go up at all? Isn't that dam supposed to grab air from under the car for the radiator?

 

I don't see how a plastic air dam will help the I/C from hitting a curb.

 

I really hope that pipe is old 409, and not mild steel. Even if it's 409, I would paint the exterior.

Regarding the undertray addition (that's not an air dam by any stretch). It's actually detrimental to airflow. You've blocked off the factory airdam from helping to force air upwards. Normally it would force air up to help air flow through the IC, and bring some cooler air to the radiator and AC condenser.

 

Ok, if the air was going upwards it would only be hitting very front or rear of the IC. By Installing the "air dam" It forces air to flow through the IC to the condensor and radiator. I haven't looked at my oil temps, but it reduced my coolant temps at cruising speed.

 

HHR Comes with an air dam for the IC