btorlv

I was going to have my gms tuned now iam going with a jlt and and tune package. Cant decide between Tillmans or Brenspeed. I live in Socal so no 92 here. Tillmans has more tunes and Brenspeed would send a 87/88/91 Tillmans has 2 tunes for each grade of fuel. So thats why i cant decide any ideas.

NOLA26

Never used a Tillman tune but I LOVE my Brenspeed tune and I LOVE the company. Customer service is the best I have ever dealt with. If Brenspeed sells it I will buy it from them. As far as getting multiple tunes for different octanes of gas, I can tell you from my experience: I have 89, 91, and 93 tunes. I loaded the 89 tune to see the difference between 89 and stock, very impressed. Then I loaded the 93 tune, without intentions of continuing to put premium gas in my car, and WOW!! I havent been back to 89 since. I dont see the need to have multiple tunes for different octanes. But thats just me and like I said I have never used Tillman so Im biased toward Brenspeed.

btorlv

Seems like no one has ever had any thing bad to say abuot brenspeed? I wish i could drive to there shop and have a sc install but an cai and tune will have to do it for now.

brad281

Brenspeed is great, but products can be found cheaper elsewhere and later add their tune if you like.
I am also running the jlt and a single 92 brenspeed tune.

btorlv

Did that combo make your car come alive? What difference from stock did you notice ?thanks

SirKnightTG

Brenspeed rules!

Nuke

Brenspeed can write you a tune for octane higher than 91. I have their 87, 89 and 93 tunes.

Rob72

You don't have to go with what Brenspeed suggests. I choose 91 race,93 reg. and 93 race. Very happy with the 93 race tune.

alkemist

I have Brenspeed 87, 89, and 93 also. I currently run 87 and haven't even tested the other 2 yet. I love it so far. CAI and tune will wake your car right up.

btorlv

They only have 91 tops in California.