i went to summit and found these part numbers and prices

comp 2460 $145.95
as i undertsand it, comes with no y pipe

super comp 2055 $349.95
comes with y pipe

super comp 2055-1 $625.99
comes with y pipe.

my question is this which one do i get to keep my tbi "legal"
what is with major price diffenece in the super comps.

 

i also read about a lost part number 2056 while doing my search
anyone got this? know about it?

 

I think the 2055s have all the neccessary smog hookups. Someone confirm that, but I think they're the legal ones.


Tim:rockon:

 

I believe you can get the 2055s with or w/o AIR.

The 2055-1 's I assume are the coated ones.

 

The 2055's only come with A.I.R. The 2460's can be special ordered with A.I.R. The -1 is coated.

Technically, 2055's aren't legal for a TBI car (3" cat is TPI-only). But, I doubt any inspection station would fail you for using them. Guess I'll find out in about 11 months...

 

Hooker did not build a smog legal system for TBI cars. I now they had EO approval for a TBI system on the 305 HO cars, but I do not believe the design shop ever managed to get their hands on one of those cars and finalize a system.

The 2056 system is for dual cat California TPI cars. There is some difference between the California vehicles and the 49 state vehicles with regard to the the AIR injection. The 2056 has a different orientation on the AIR injection, and on my car, the orientation of the 2055 AIR injection is correct. (My car is a '90 GTA from I believe Minnesota. It is not a CA car, and I found that the 2055 headers would hook up to my AIR injection better than the 2056. However, I need the 2056 headpipes to accommodate the factory dual cat system. The best response I could get from Hooker's design shop was that they were careful to use a California car for their design, and my car being from another state could be the source of the discrepancy.)

If you have a single cat your best bet probably is to try to use the 2055 system and hope that the smog tech goes no farther than verifying the existence of an EO tag. If he tries to match the EO P/N with the application you could end up having to re-install the original manifolds, so don't throw out your old parts.

 

on the last tes all they did was check vin miles on clock and then the smog test.
never lifted the hood
loli even had a broken a.i.r. tube on the cat no notice.