im going to be running long tubes and i want to run no CATS cause i dont have to get my truck smogged for another 3 years. my question is how bad will my truck run if i dont change the tune right away?
im going to be running long tubes and i want to run no CATS cause i dont have to get my truck smogged for another 3 years. my question is how bad will my truck run if i dont change the tune right away?
not too bad at all, I just ran mine for a couple days before allen tuned mine and it ran good. Of course after the tune you can def tell the difference but it'll be fine.
Last edited by Robt34; 08-05-2009 at 03:40 PM.
02' 5.3 ECSB| Nelson 93 Tune | 212/218 Cam | Circle D 3200 | LPP lt's w/ ORY | Volant CAI | Magnaflow | Raceready Cutout | Belltech 2/4 | JL Audio |
How is the truck after the tune Rob? I would think you would want to get tuned fairly quickly. other wise I think the MPG will go to crap.
Name: Mark,
God created turbo lag so nitrous trucks could have a chance.
http://www.ls1truck.com/forums/my-ga...tml#post274877
the mpg's did suffer... a lead right foot dosen't help though. Truck runs great, big improvement for sure, well worth the money.
02' 5.3 ECSB| Nelson 93 Tune | 212/218 Cam | Circle D 3200 | LPP lt's w/ ORY | Volant CAI | Magnaflow | Raceready Cutout | Belltech 2/4 | JL Audio |
You should get a Service Engine light immediately.
1991 Silverado ECLB
LM7-T56
Ran mine for months. Just had SES light. No issues to worry about. Plus nothing beats that boat/gassy smell. IMO
2013 CC 5.3
81 C10 LS1 project
Ran mine for a couple weeks with stock tune and took few days before the CEL came on. Go figure. Besides that no probs. Sure sounds like a BEAST with the lt's and no cats. I likey!!!!
2007 GMT900 RCSB 5.3L,AEM cai,Wheatley 93 tune,Pacesetter longtubes,O/R Y-Pipe,Dynomax ultra-flo,G80,410's,Circle D 3C 34-3600 stall,vette servo,1/8 mile p.b.8.98@78.67 mph BEFORE stall. New pb to come soon... Stay tuned for more...
Yeah, the test for P0430 and P0420 takes a while to complete because the parameters are so detailed. Plus it has to report failed a few times before the light comes on.