Can I take all that air tubes **** off and the cats? Will it heart anything or can it help anything? Mine is the 98 c5 thinking of maybe a set of shorty headers. That's another ? How much dif is a set of long tubes compared to shorty headers? Is it a waste of time and money to put on the shorty's? Thanks

 

From what I understand shorty headers dont give you much at all other than looks. Longtube headers on the other hand will give you more power and if you go that route you are most likely going to want a matching xpipe that you can get with or without cats. Just taking the cats off your car as it is right now should free up some more power but you will throw codes unless you get your rear o2 sensors tuned out, same goes with the longtube headers. And if you dont have cats on your car its going to smell pretty bad unless you get a really good tune on it.
If I was you I would wait and save up the money for longtubes if you want to get some more power and a better sound out of your car.

 

just got sraight pipes on my Z06 and I love it

 

By straight pipes do you mean the cat back or what?

 

I'm running LG Street LTH w/ no cats. I deleted all the air tube crap several weeks ago. My understanding is the only reason that is there is for the California emissions standards. The AIR system apparently heats up the cats when you first start the car. Since I'm not running cats I didn't find it necessary to have them and it cleans up the engine bay. The air pump is located under the driver's side headlight.

 

^x2....deleted mine along with the motor swap. Although I did have the flange on the long tubes for it I simply cut the end of the metal tube off and welded it up, saving time and money on blockoff plates. I did have Ryan tune it out where I wouldn't be getting any codes. But then best of all NO MORE SMOG PUMP WHINE! It was about do drive me crazy and I only had the Vette 2 months before deleting it.

 

cat delete and then 2.5 all the way back and i love the sound it gives with my head and cam set up with the longtube headers as well makes avery one on the highway get out off your way lol

 

texas speed long tubes, no cats, 3 inch X pipe into a z06 ti axleback. I had ECS tune out the AIR and rear 02 sensors as well as adjust for the changes in the exhaust system. Runs great, no CELs, and no smells.

 

Depends on your states smog rules or if you are even worried about being emmisions legal
altering the air tubes will prevent the "visual inspection" in most states
But you can disable the AIR system by installing air tube block off plates on your headers which look like just a thick gasket--then just unplug the pigtail from the pump itself--But you'll have to tune out the DTC codes for all the AIR system---The pump only operates briefly when 1st starting the car to heat and light off your cats-But its not a big deal to pass smog--as long as you warm the car well before testing
As far as HP ?? Not a big deal--the pump is electric and there is NO HP loss from leaving it installed
Cats ?? same thing-- depends on your state and whether or not you even have to pass smog--HP ?? Again no a big deal despite what others say--Maybe 5 RWHP-- The stock C5 cats flow very well
Shortys are 50 state smog legal--Good for about 10-15 RWHP with a tune
LT's are NOT smog legal in some states -both visually and emissions wise --as far as HP is concerned--you can gain anywhere from 18-28 RWHP with a tune
Only issue with LT's is that beacuse of the further back 02 bung locations -you will get erroneous 02 readings and your engine will run rich in closed loop or P/T driving--Tuning can help correct this and is a must !!
Bottom line on shortys vs LT's--depends on you goals--and cars's use-
A car with leagl shortys is easier to resale- An easy 12 RWHP gain-LT's will make more HP but may limit your resale to some people-requires more installation and specific tuning