Jet hots seem prety decent.
What headers would the best for hooking up the emission equipment and catalytic converters?
One more question, does anyone know how much hp/torque the stock cats rob? just curious.

 

I believe both Pacesetter and Jet-hot offer LTs with emissions equipment. I know Pacesetter does for sure. The LTs and ORY will be 3 inches, so your stock cat. is smaller and will not fit unless you modified it to do so, which is not worth it. You can get a high-flow 3" cat. for around 50.00-60.00 bucks.

 

You're not asking the right question.

Exhaust components don't "rob" the car of power. They set an upper limit on power. An engine is an air pump, and the exhaust is the output. A restrictive exhaust limits the output.

That said, I have no idea what the upper limit would be on the stock cats, but I'd guess that it's probably close to 400rwhp.

 

So are you saying that having that cats. does not cause any power loss under 400rwhp?

 

Since you used this: I'm not even going to repond the sarcasm.

 

Agreed..... especially when you ditch the factory Y pipe which sucks at best. My ceramic SLP shorties, random tech dual cat Y pipe and mufflex 4" flow just fine. No ground clearance problems either.

 

Joe 1320...

I'm with you on the shorties to an extent...1 3/4" shorties are a whole different animal over 1 5/8"..I run the LPE 1 3/4" shorties and Random Y with gutted CAT and my time is in my sig. I am going to try the Kooks LTs 1 3/4 stepped to 1 7/8 with the 3" Y. I waited until a company came out with LTs that have no ground clearance issues and still allowed the use of my Spohn TA which is set up for shorties..The Kooks are supposed to fit this application and should flow a little more. I'm at the point where every tenth is starting to cost some $$$ and I'm hoping for a couple with this new set up...I'm taking a $1200 risk that the new stuff will be better..we'll see. That being said I'm still a huge fan of Big tube shorties for a number of reasons. I even think that Fred (moderator) usually chimes in here with people he knows running shorties and flying...

For most people large tube shorties will work great...

--Alan

 

Don't get me wrong, I do like big tube long headers. However, with my 2" drop, I wouldn't have a prayer in running those. Actually, it's not the headers I would worry about. The collectors aren't really that low. It's the Y pipe that gives most people the clearance issues. I see exactly where you are at and it does make perfect sense.

 

whats wrong with edelbrock headers? i gained 3 mph and 4 tenths with them on a pretty much stock car? that a damn good improvement.
after i put in the hot cam in i dynoed 344.
well everyone was telling me that my headers were sucking up so much power... so i spent a grand on some flps... and dynoed 344
well worth the money

now that i've gone alot farther with the car im happy i went with them. but wasnt worth it on a daily driver.

so with that said, shorties are a great buy for someone on a budget looking to not loose any ground clearence

 

Do you happen to have both dyno graphs? I'd like to see them.

-Dustin-

 

Hold on, we're getting off track. Gnarly Z28: do you have to pass emissions? If not don't waste $$ on cats. Just run LTs and a 3" y-pipe no cats and 02 simulators, if you feel the police around you are basically cool. If you do have to pass emissions, just get an exhaust shop to weld in some 3" high flow cats into your LT y-pipe. Unless you want to drop your car, LT shouldn't cause ground clearance issues. If you don't have to pass a visual or sniff test emissions test, then get headers with no AIR or EGR, 3" y-pipe, no cats, no rear 02 sensors. Then get someone like MadZ28 to delete the EGR systems and such from your computer, eliminating trouble lights, and adding even more power in other ways (around $125 for tune, well worth it) This will be the cheapest way. around $400 headers, $120 y-pipe, $80 02 sims, then $125 tune (which is more HP gain than just exhaust)
shorties, and a stock y-pipe and cats will give you almost no noticable power gain as far as you can tell. (I'm sure the dyno, maybe even the track will read some gain, but not just your gut feeling)

 

That could be your problem running those Pacesetters why you are stuck in the 13's. Customs are the way to go and then get them Jet Hot Coated...

 

i'll look, but that was like 4 years ago

 

I hope I am misunderstanding what you wrote there. Your saying that his pacesetter LT's are keeping him in the 13's? If so you are very ignorant...no scratch that your a jackass. If not than I appologize for name calling. There are enough header options for 99% of the people out here. There is no need for custom headers unless you want a custom turbo setup, or you run an out of the ordinary head setup...ie..SB2.2, 15*, 18*. There are shorties to fit the bill for almost anybodies budget, LT's for guys running 9's and people on tight budgets. Primaries that are from 1 1/2-1 7/8" and your gonna say that you need custom headers.

 

I wasn't really planning on turning my car into a full blown racer. I just wanted some extra power for on the street, i am also on a tight budget. If i were to go with a set of shorties and the stock dual cat y-pipe with my current mods would there be a somewhat noticeable increase in hp or torque?