floydfan

macperformance.com has just put on their website new headers for the 4.0 v6 in 05 Stangs! wonder when they'll be available, gonna send an email.... Oh yeah...$299

blackhorse05

will that ad horsepower

doc0075579

What is the difference between the MAC and the JBA headers, aside from about $300.00 difference??

blackhorse05

i emailed them twice, no reply, i guess they dont want anyone to buy it

hamidlmt

I ordered MAC headers and the single axle-back a wee bit ago. They should have shipped today (or in the next day or two). I emailed about power gains and they wrote back saying with both installed they would produce 23 hp.

blackhorse05

hey i appreciate the answer thanks man

doc0075579

Anyone know the difference between the JBA Headers and the MAC?? There is a BIG price difference. Paying for a name with JBA??

floydfan

No Idea the difference between the 2. I haven't heard back from Mac yet. Interesting that you said they'll ship today. From what I heard the dual exauhst isn't rdy till april 10th, even though it's been listed at mac's site for a month. Figured it'd be a longer wait fo rthe headers, as they've only been listed for 4 days.

blackhorse05

well if they ever wrote me back i wopuld love to ask them qeustions, in running the 05 v6 with dual flowmasters, mmr cold air intake, and my frigen roush underdrive pullye system should of already been here, whichhas me a bit pissed, was planning on going to the track tonight, so now im wondering wqhat these headers will do, what do you guys think

doc0075579

Blackhorse... How is that MMR CAI??