Subaru Enthusiasts Car Club of the Sierras - View Single Post

Dean · 2005-11-16, 06:58 PM

Short answer: I'll let others go into details if so inclined.

No intake on the market perfectly matches the flow characteristics of the stock pipe, so MAF readings can be significantly wrong, and cause the mixture to lean out and possibly destroy the engine.

On an STI especially, some exhaust changes can allow boost creep to occur causing excessive boost leading to engine failure.

Edit: Damn, Scott beat me to it...

2005-11-16, 06:58 PM	#13
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	Short answer: I'll let others go into details if so inclined. No intake on the market perfectly matches the flow characteristics of the stock pipe, so MAF readings can be significantly wrong, and cause the mixture to lean out and possibly destroy the engine. On an STI especially, some exhaust changes can allow boost creep to occur causing excessive boost leading to engine failure. Edit: Damn, Scott beat me to it... __________________ I am a Commodore PET --- Now get off my lawn you kids...