Blacksmoke

Actually kinda like a double check.

I purchased a C&L Racer CAI and a SCT X3 tuner combo from Brenspeed.

When I told them my mods I had done I told them axle back and wheels/tires.
I did fail to mention though that my exhaust was SLP loudmouths and that these have NO muffler. They are a straight through.

Now... I know that axle backs do not require a tune, but should I have told them about the loudmouths in order to make the tunes they gave me with the tuner a little better for my car, or would they have made no adjustments anyways?

Thx.

Blacksmoke

Wow 39 reads and no replies?

gman73

No adjustment is needed for SLP LM or anyother muffler delete.

dysan

+1. No adjustment necessary.

Red ll iine GT

unless you wanted something specifically done to that area of the car i.e. turn o2's off or somethin like that..otherwise it doesnt matter.

jwharton

I beleive Brenspeed turns the o2's off as a normal item on their tunes.

Red ll iine GT

really? huh. i thought you had to ask.

jwharton

I asked them about putting an O/R H-pipe on and if they would have to turn off the o2's and Chandler told me they turn them off unless asked specifically for them to be left on.

brad281

I was even told that my tune would be okay with running the o/r h with an axleback setup or no mufflers at all. No worry, however when I switched from my stingers to a delete, I noticed a loss of power down low. Car just doesn't have the feel it used to.