So I have an extended warranty that ends in 2010 or like 40k miles. I would like to keep this in tact if possible.

For anyone that doesn't know. Any parts that are not stock that you put on your car are not covered by the extended warranty. If a covered part goes wrong and the dealership servicing it can point to the after market parts as the cause of the failure, they have the right to void the warranty. However, they cannot void the warranty on the premise that there are just after market parts there.

Here's what I'm thinking

Engine
I'm good with anything after the CAT, since you cannot prove that an exhaust screwed up your engine. So this includes...

- CAI
- Downpipe
- midpipe
- (already have) megan racing axleback exhaust

I would like to put the following in but think they are on the edge...
- headers
- high flow CAT

Suspension
- TRD Strut Tower Bar
- front and rear sway bars

Post your thoughts or feel free to correct me.

Thanks!