i am thinking of picking up an sti, but would like to do the typical turbo things, like exhaust, downpipe, intake, would this void a warranty on a sti? are the tampa area subaru dealers mod friendly? The supra was long out of warranty when i bought it and i know on most na cars this is not a problem but with turbo cars these things sometimes raise boost more then stock levels so i am not sure what is allowed and what isnt, maybe like just intake and exhaust but no downpipe? any help would be appreciated

 

This is from Subaru of Australia. It should be similar to thier american policy.


Questions Answers
How will modifications affect my warranty? If you have a concern that can be attributed to a modification, then that concern will not be warranted as it is no longer a result of manufacturing defect. Therefore, to answer your question the total vehicle warranty is not void, but be aware changes in some system may effect others systems adversely.
Can I fit a non-genuine part to my Subaru? Fitting of a non-genuine part to your Subaru vehicle during its warranty period would be considered a modification. Therefore, if you have a concern that can be attributed to that modification, then that concern will not be warranted as it is no longer a result of manufacturing defect of a genuine Subaru part.
Towing vehicles for a warranty concern. Subaru’s warranty policy does cover towing. If you find yourself in the situation of being stranded due to the need of warrantable repairs, the vehicle warranty will cover any costs involved with delivering your vehicle to the closest Subaru dealer. Please be aware that incorrect towing can damage the vehicle, refer to your owner's guide for details.
Will using my Subaru in motor sport events affect warranty? Use of Subaru vehicles in motor sport events is specifically excluded from the new vehicle warranty, please refer to page three of your service and warranty booklet.
Are Rattles covered under warranty? After the warranty period for rattles has expired, Subaru Australia will always consider any rattle concern you may have, if related to manufacture, within the 3 year warranty period. However, rattles that are rectified through general tightening of fasteners are considered a maintenance item after 12 months or 25,000kms (which ever comes first), as they are normally caused by the conditions encountered by the vehicle.
Are clutches covered by warranty? Since the clutch is a wear and tear component it cannot be covered by warranty if it has worn out. However if the clutch is not operating as intended, and it is not a symptom of a worn clutch, the matter would be considered for warranty if due to manufacturing defect.