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Audi S4 Air Intake Systems

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Latest Customer Reviews

Heatshield Products HP Heatshield Mat Reviews


Great Quality, Easy to use

Reviewed By Matt D (Encino, CA) Reviewed for a 2001 Audi A4 —4/3/2014 12:42 PM

The HP mat does a great job repelling radiant heat from my turbocharger and exhaust system from being absorbed by my intake system. Keeps my heat shield running cool and reducing heat soak.

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Injen Replacement Air Intake Filters Reviews


Good replacement

Reviewed By Tae K (Puyallup, WA) Reviewed for a 2008 Nissan Titan —12/24/2014 11:08 AM

This was a replacement for my Injen oiled filter. I heard that oiled filters can cause damage to the engine and mass air flow sensor so I thought I'd give this one a try. This particular filter did not have the reverse conical filter element at the top of the filter like the oiled filter does so it seems like it would flow less (less surface area). Not sure if that would make a difference. Installation was easy. Satisfied with my purchase.

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Injen SP Series Cold Air Intake Reviews


Great Intake

Reviewed By Thi L (Wichita, KS) Reviewed for a 2011 Honda Accord —12/18/2014 2:31 PM

Bolted up nice..looks great..made my quiet v6 a little louder which is what i wanted. felt a slight increase in mpg as well as throttle response.

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