Is it OK to raise engine a little bit on passenger side using washers?

[NRXRaptor]

Originally Posted by Ernest72

Funny post. it is lowered by millimeters and louvers work. Its a DD, so aero is literally worthless. Coated header gives off less heat then stock. Could care less about a warranty. I have a modded WRX since 2003 and no issues with 125k, still going strong. Subaru's are tough if you take care of them.

Aero is not literally worthless. Depending on how much you drive, making your car slippery could save you money. You'd have to drive a lot, but still. I think I'll get a diffuser one day to cover up the hole in the back from getting rid of the stock catback. My rear bumper is kind of like a parachute. But mostly I like how the strakes look on the overly aggressive diffusers. This is my hot wheels car fite me irl

[Ernest72]

Originally Posted by NRXRaptor

Aero is not literally worthless. Depending on how much you drive, making your car slippery could save you money. You'd have to drive a lot, but still. I think I'll get a diffuser one day to cover up the hole in the back from getting rid of the stock catback. My rear bumper is kind of like a parachute. But mostly I like how the strakes look on the overly aggressive diffusers. This is my hot wheels car fite me irl

For DD, have not seen any difference up to about 90 mph on the highway. Faster speeds on the track is where you might notice something, but no tracking, so no worries.