How important is a tune...

[SandmanWs7]

After you have installed LTs, Y-pipie, and CAT back. I am thinking of buy these things in the next month or so, but that would kill my mod money. Could I go 2-4 weeks of driving it without the tune or would it run like crap.

Also what would you recommend for the above. I am thinking Pacesetters LT for sure but have no idea about the Y-pipe (needs to be catted) or exhaust.

[BlackLT1Z28]

No, you don't need a tune. You will be running a little rich(er) than normal, but shouldn't be anything too severe. Without a tune, there will still be power left on the table, but it will definately still be driveable.

And Pacesetter makes a catted Y-pipe for the LS1 applications. So that shouldn't be a problem either.

[MassGaskets]

I've heard the pacesetter Y is poorly made. TSP makes a y-pipe for use with the pacesetters.

http://www.texas-speed.com/shop/item...id=182&catid=8

[BULLET_WS6]

I've heard the pacesetter Y is poorly made. TSP makes a y-pipe for use with the pacesetters.

http://www.texas-speed.com/shop/item...id=182&catid=8

see now i heard the opposite... confusion... i think ima risk it and stick with the pacesetters... but i hear like half and half on that y pipe matter

[secondgearscratch]

see now i heard the opposite... confusion... i think ima risk it and stick with the pacesetters... but i hear like half and half on that y pipe matter

its a y pipe....pretty hard to screw up. the pacesetter one is fine, so is the texas speed piece.

youll be fine without a tune.....anything after this though and you need the tune if its changing a/f ratios(cam, heads, intake).....

[BULLET_WS6]

its a y pipe....pretty hard to screw up. the pacesetter one is fine, so is the texas speed piece.

youll be fine without a tune.....anything after this though and you need the tune if its changing a/f ratios(cam, heads, intake).....

allright thanks for the help... i was worried i would end up dumping money somewhere cuz i messed up

[SandmanWs7]

Cool thanks!

[nhraformula]

I've heard the pacesetter Y is poorly made. TSP makes a y-pipe for use with the pacesetters.

http://www.texas-speed.com/shop/item...id=182&catid=8

neither is poorly made.

[SSwt00SS]

importance of a tune is basically this...

having a car that's fun, drivable, and performs like it should, OR having a 3400 pound paper weight, cause something craps out as the result of a poor tune or no tune at all...

[408WS6]

You should have your tune checked every time you do a mod that affects intake, or exhaust. No, you don't have to, but you will get the full benefit of your mod if you retune.

[greatwhiteZ28]

just look at all the header post more then half runs pacesterrs and love them, great clearence too, but

yea i agree you will benifit the most with a tune, but not like crazy, some people never tune after after a LT install, but also keep this in mind since a tune can run 300-550$ if you plan on getting a cam or heads done wait a while till thats installed and gert everything tuned once.

so here it is if you have the coin do it, if not wait a lil w/ some HP lose, and if getting H/C soon wait get all done at one.

but listen to BLACKLT1Z28 hes the man on headers