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If there are no trouble codes, the car will pass the diagnostic portion... It will not pass the visiual inspection if the mechanic looks underneath your car.

I had the old style Mac cat back w/ the chrome plated tips on my GT.. The tips started to rust after the first year. The dealer where I got the exhaust called MAC and told them of my problem....They stood behind their product and sent me a brand new Stainless tipped cat back for no charge...

Stock manifolds /Dr Gas X/ MAC cat-back

DR. GAS :hail2: Deep rumble at idle, screams like a raped ape at 4K+ Edit: only if you want to go catless...didn't see that you are looking for a catted pipe

Just put Hankook Ventus 104's in 275/40/17 on all 4 corners last month. I like them so far, they definately have better traction and less road noise than the Goodyears :nice:

Another vote for Dr. Gas! The sound is absolutely orgasmic :hail2:

I use Mobil 5-30 in mine, no problems. As far as oil filters, I use Motorcraft in all my vehicles. I picked one up at WalMart today for $3.00. Between $4 and $5 sounds right for Mobil 1. You can buy it in a 5 quart jug at Walmart, It's like $20.

I agree... Take a listen:nice: Dr. GAS X, Mac cat-back

Nope, the manifold flanges are different.

Sunoco or Exxon

No cats

No problem, we can hook up when this winter ever decides to end! My best friend just got an '03 Cobra this past fall, so we will be out crusing soon.:nice: I can't imagine what shooting through the liberty tubes at WOT would sound like :hail2:

Did you reset the computer after the mils were installed? If not, disconnect the battery for 15-20 minutes to reset :nice:

I'll try to get another soundclip made tomorrow... Can't be waking the neighbors tonite :D

My buddy and I were talking about going if the weather forecast is nice, were gonna decide this weekend! He wants me to take his '03 Cobra for a few passes to see what she'll do :nice:

Stock manifolds, Dr. Gas X-pipe, MAC Flowpath cat-back

That was my decision too! Both sound great, but I liked the Dr. Gas a little better. The only drawback is the Dr. Gas needs welded together, so it's a little more labor intensive if installing it yourself, and a little more costly if a shop is doing it. Thanks for the compliments :D

Thanks for the compliments :nice: The addition of the X-pipe made the car sound totally different, much. Although I loved the sound(and got many compliments) of just the cat back with the stock H. My SOTP meter isin't that accurate, but it feels like the car pulls harder in the mid to upper...

Just got done installing my Dr Gas X... All I can say is "wow" :nice: Sounds like a musclecar at idle, and screams like a stock car at 4000K+! I get a woody every time step on it :banana: The install was easy except for a pesky leak at the drivers side manifold. Changing the exhaust...

Absolutely! Awsome Job :hail2: