KonkeyDong

There is a sulfuric smell under hard acceleration sometimes in my T/A. Is that the catalytic converters?

wayland1985

Most likely. Happens in nearly all cars under hard acceleration

KonkeyDong

Is there a cat delete for LS cars? Probly get the code tuned out?

wayland1985

Ah: I can tell you have a lot of researching to do here. I find it a lot easier to use Google and search "LS1, cat delete" and then select "all results from Ls1 tech" to be much easier than this site's search.

And yes: I'm sure aside from the California boys, most of the fourth Gens are running without cats.

KonkeyDong

Indiana here. No emissions!!! lol

Im sure its as simple as cutting em out and welding in a replacement piece or something.

wayland1985

And your tuner will also take care of the codes.

KonkeyDong

Right on. Got a list of stuff to send Frost. LOL

No matter the amount of bolt ons, 1 or 10, it should just cost $150 for the mail order tune and PCM to him, right?

wayland1985

I'm not sure. I have the luxury of a well respected tuner within an hours drive from me: so I opted for him to do full dyno tunes.

I have a mild cam too; after swapping the heads and cam at home I drive it over to his shop for a proper tune (kept the factory fuel injectors on until we got to his place)

KonkeyDong

Yeah. Norris Motorsports is about an hour away, but Dyno Tune will cost more than $450! That $300 difference is enough for tools and parts!

Ill probably hold off the Dyno tune until its Intake and Cam time.