The red line is the stock run; the green line is with the Magnaflow cat-back; the blue line is with the JBA titanium ceramic-coated headers and the BamaChips tune, although the tune wasn't what we'd expected since the tank was full of 87 instead of 93. We'll give it another shot with the right fuel.

The peak numbers with the headers and tune aren't much better than the run with just the cat-back, but the gains across the RPM range are awesome.

• Stock: 265.89 hp/280.05 ft.-lbs.
• Cat-Back: 269.72 hp/286.28 ft.-lbs.
• Headers + Tune: 271.43 hp/293.09 ft.-lbs.

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I will take a shot in the dark and say the car will respond much better with the correct fuel

How has the driveability changed with the new modifications? has the throttle response improved?

 

Just doesn't seem like much of an increase. Hopefully you'll see a better gain with the correct fuel.

 

Not a bad improvement with just a cat-back. +4 HP & +6 ft-lbs. I've got my Magnaflows in the garage. Running with the JBAs for now.

Which tune did you have installed? 87 performance or torque? No CAI yet? I've got my SCT X2 coming from Doug. Looking forward to it.

I'll be looking for an update with the 93 fuel as I'm getting one of those tunes too.

 

I acctually think he has a 93 tune in the car. The intent was to burn the tank of 87 and refil with 93, but Brad would have to verify as I was not there.

 

Yeah, that was what I was thinking but I've read to not run the car with a 93 tune with 87 octane. OK to run 93 octane with 87 tune though.

 

I'm pretty sure Doug wouldn't put in a 93 octane tune while brad had a full tank of 87 octane.

 

Like I said, I was not there and I havent really had a chance to discuss with Brad. I do know that he's switched to 93 now. The car was at the shop immediately after the dyno tune so I know it didnt get ran much with the 87 in.

Maybe Brad or Doug will chime in

 

Igot 286 hp 312rwgt 91 oct at racersedge and sctx2