Halltech with mid-pipe?
 

I have the Halltech intake and I know it requires no tune to run safely and yield hp gains. I'm considering a Borla or Corsa mid-pipe for a little more sound. Can I still be safe without a tune? (Cat-delete involved)

In for this....thinking exactly the same mods...

Same here

I did it, no regrets. I did the Corsa double helix.

Off topic,hows the sound in stealth??

I guess ok, its just slightly louder. Sounds so good open, so 95% time I'm in track mode :rofl:

I just close it up when I see the boys in blue lol

lol, I don't close up. I get eye contact and give them the "shh" sign. They usually laugh.

Done many including mine. No tune needed. Next is the cat delete pipes which opens our cars nicely

When you say "no tune needed", I assume that means you've checked the AFRs after installing the intake and mid-pipe??

On my car just intake but I've done othera no issues with both.

Afr
 

I have carbon fiber haltech with the highflow filter and helix double x pipe afr is 12.6 at wo throttle,car makes628rwhp 637rwtq in 95 degree dyno m7 car

Damn nice gains.

Marc did you tune car??
Thanks

Yes Intrested tune or stock calibration.

Tune
 

The car is not tuned i am trying to see how far i can go without tuning,i have a 75 shot of nitrous and it makes 695rwhp,791 rwtq but i smoked the clutch at the track i now have a rps twin disc in it breaking it in for track rental mid december.i keep an eye on my afm with a torque ap and we use a wideband on the dyno.car runs great in 95 degree weather i cant wait till it gets cooler here.car also has a dewitts rad ,fasterproms intercooler tank and 180 therm the key to these cars making power is keeping it cool on the dyno you can loose 50 hp in back to back runs,the dyno runs had 115 degree intake air temps,imagine the hp in 50 degree weather!

I've got the Corsa Extreme exhaust with the Double Helix X-pipe along with the aFe throttle body spacer and the Halltech CAI.


I've never had a code thrown. The sound is fantastic! When in Eco Mode and in 7th gear, you still get "Stealth" mode. Obviously, it's not a quiet as stock, but not loud either. But I love the sound of the Corsa Extreme. It gives you more than the stock exhaust. But you hear it more all the time than you do with the stock exhaust.

:eek: wow i thought the x pipe was more for sound.

I also want to buy the X Pipe, what about a Ported TB? anyone?

Look for those 10% off deals, i got mine for 500 flat.