Hey everyone so I got my car tuned last week by Z1 Motorsports. It made 264 Whp and 244 Torque. I thought That's pretty good for my mods and mileage. My car is a 6 speed with 133k miles. My mods are Z1 plenum spacer, Berk HFC, and Invidia Gemini exhaust. I also got the Arc features. The launch control and burnout mod is pretty fun and the rolling antilag is pretty much useless for me since I'm NA but it's a cool way to show off your exhausts lol. The dyno tune was 300, uprev licenses 300, and arc update is 100 so the total was 700. The acceleration is much smoother and 3rd gear feels like it pulls much better.

 

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Nice. I think I disabled the antilag since it's kinda useless. The no-lift shifting is pretty cool, but sometimes I "stumble" into that feature when pushing it a little hard and shifting normally. The car reminds me that I'm being too slow letting off the clutch pedal, lol.

Only really did burnout mode once, when my tires were done anyway. Made a pretty cool youtube video of it though.

Oh, since you have a revup engine, that Z1 plenum spacer is pretty much useless unless you have an MREV2 or a non-revup lower plenum that you didn't list in your mods.

 

I have the same combo mods with OP, how much gain would a MREV2 add? Correct me if I am wrong, the only difference is that mrev2 has slightly bigger holes than oem to compensate for breathing?

 

This is where some additional homework would have saved some cash. Answer also depends if you have a revup, or non-revup engine. The mrev2 is simply a modified non-revup lower plenum. The revup plenum has shorter intake runners, and as such don't suffer from air starvation at high rpms that the spacers are designed to fix. Slapping an mrev2 on a revup motor adds something ridiculous like 20 ft-lb of torque around 5k rpms (area under the curve) but causes hp to drop off after 6200 rpms, like regular non-revup engines. A spacer and tune fixes that part and lets the engine keep pulling from 6200 to the 7k redline.

Here's a pic of the difference when I "upgraded" my car. Revup on bottom, a non-revup plenum on top (before I ported it out).

Sorry for taking this off topic.