[Official] "Do I need a tune with bolt-ons?" thread

[Vichtz]

Ok so I just bought an 09 370z Saturday. Being the kind of guy I am, F.I. exhaust and stillen G3 intake are in the mail. I had an 06 mustang GT before this, which had a great community of tuners that sent reflash files for those of us too dumb to know where the dyno guys were at. Quick plug into the obd2 with the sctsf3 after any bolt on mods and you were set. however, I feel the Z is a much more luxurious vehicle and will receive special attention. I have never done a dyno tune before, So do I NEEd to get one? will I ruin anything with these 2 minor bolt-ons without a tune? I MIGHT put HFC's on later, but this is probably the extent of my engine modifications. I'm just new to this whole thing and am looking for advice. I live in college station TX, so if there is anyone around here yall know about that would be great information to have. Thanks for taking the time to read this and I appreciate any advice, I'm new to the Z world haha.

[Proshop01]

I have the F.I. exhaust and G3 intake, but never got it tuned afterwards. It has been at least 6 months and I haven't seen a need for a tune.

[gbrettin]

I have the F.I. Exaust w/o a tune and haven't had any issues. I've been driving this way for about 1.5 years.

[Pelican170]

You dont need to get it tuned as the ECU will correct itself with some time. Although a tune is recommended to get the A/F ratio perfect...

[bigdog1250]

You definitely don't NEED a tune. That being said, a tune will help get every bit of power out of your mods, just wait until you're done putting on bolt-ons to do it.

Congrats on your new Z, you're going to love it.

P.S. FI exhaust is the best! Good choice

[Huck]

G3's and just the CBE won't affect your A/F ratio too much to where you NEED a tune. I've got the G3's, and my non res'd FI LTH/CBE combo will be here in June. I'll be getting the Uprev after that since that freeflowing of a design is a little bit more dangerous...

[MacLean]

Welcome & congrats on ur Z purchase along with ordering your mods.

[Vichtz]

Thanks for all the advice and quick responses. The car is great so far. I'm not gonna say i don't miss the pull the 'stang had off the line, but the high-end pulls in the Z are to die for! So I don't need a tune but it would help milk the power. I have never done anything like this, who do I talk to after I get the parts installed? I can easily make it up to houston or stop by austin on my way to san antonio, so what are the best places to go between the 2? Obviously this is for the TX people haha.

[bdavis89]

Originally Posted by DJ-of-E

Funny how he's probably a first to go from Mustang to a Z and not vice versa.

Originally Posted by Vichtz

I feel the Z is a much more luxurious vehicle and will receive special attention.

I did the same, granted it was a 2001 mustang, but still. For some it's not all about straight speed.

Also, welcome to the SEC.

On topic, you should be fine without a tune. For these cars a tune should be the last thing you do after all boltons are installed. To save money.

[DJ-of-E]

Funny how he's probably a first to go from Mustang to a Z and not vice versa.

[Nick911sc]

Just wanted to let you know, as I hadn't seen anyone else say it.

As stated the G3's and CBE will be fine without a tune. But if you add HFC's you will need a tune to be on the safe side. The car could possibly run too lean with the 3 breather mods combined.

[Vichtz]

Ok sounds like a plan. Thanks again for all the advice, I'm just tryin to feel it out before biting into it. The mustang, though I love the car dearly, was too much "brute force" and in my eyes lacked finesse. These days I'm enjoying the "lean and mean" mindset, and this car has the potential to fulfill that roll perfectly. That is why I switched to the Z. I will just have to see if I can make the best of that potential without screwing it up hahaha

[LakeShow]

Congrats on the Z. Bottom line is tune isn't necessarily needed, but if your about getting every bit of power out the engine and your mods, definitely way to go.