I used the search feature but couldn`t find anything about removing the cat. conv. from the LLY engine. Has anyone done it and what were the results ? If you go to a bigger exhaust system what do you do about the cat?
Jomar
I used the search feature but couldn`t find anything about removing the cat. conv. from the LLY engine. Has anyone done it and what were the results ? If you go to a bigger exhaust system what do you do about the cat?
Jomar
2002 Chevy D/A LT 4x4 EC LB Indigo Blue
Ranch Hand Grille Guard
Stock Air Filter Rancho 9000 Shocks
Luverne STS Boards
Bestop Electric Towing Mirrors
Husky Floor Mats
Reese 16K 5er Hitch
Amsoil all the way
Dynomax 4in. exhaust system
Egt & Boost Gauges
OD Lockout
Swiss cheese airbox
I have done it on both my trucks. 1 got a 4" exhaust, 1 got the 01-03 front pipe. The 2nd one seems to have better power and mileage, beleive it or not. The 1st sounds better.
Rick Lance
Over 1 million miles on my seven Duramax's
I'm pretty sure that those with CA emissions have had codes set after removing the cat, but I haven't seen enough data to be certain that it is a major ocurrence. What you need to watch out for is the CA emissions hits the northeastern states as well, and some get mixed into the "general population" also.
Thanks for the feedback. I really appreciate it.
I was asking on behalf of my son who just got a `04.5 LLY and is wanting to change the exhaust system.
JK, don`t you sell exhaust systems? I`ll check your website.
Thanks,
Jomar
2002 Chevy D/A LT 4x4 EC LB Indigo Blue
Ranch Hand Grille Guard
Stock Air Filter Rancho 9000 Shocks
Luverne STS Boards
Bestop Electric Towing Mirrors
Husky Floor Mats
Reese 16K 5er Hitch
Amsoil all the way
Dynomax 4in. exhaust system
Egt & Boost Gauges
OD Lockout
Swiss cheese airbox