TF 2016. Just a thought here, would it help if the collector flange was turned 90* and then reattached? I would figure the flange is what you're having the clearance problem with due to that being the highest point there. How much drop do you measure?
Mac 351w longtube headers hit floor board
I mocked up my drivetrain and found the pass side collector hitting the floor board. Driver side looks fine. When I measure the collector height from the ground, the pass side sits up 1" higher, which is causing the floor board interference. The headers are 1 3/4 Mac longtubes on a 351w with convertible mounts. I also bolted up the headers with the engine block and heads on the stand - the collectors are still uneven by the same amount. Anyone else have this issue?
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You could always do a floorboard massage. I recall having to do a little beating.
The flange isn't welded in place. It just slides over the collector piping. The collector itself hits the floor board.TF 2016. Just a thought here, would it help if the collector flange was turned 90* and then reattached? I would figure the flange is what you're having the clearance problem with due to that being the highest point there. How much drop do you measure?
I'd rather dent the collector than beat on the chassis. To me it's more of an issue having the collectors uneven, turning x-pipe fitment into a difficult hack job,You could always do a floorboard massage. I recall having to do a little beating.
Did you get a drop measurement? Are yours 1 3/4? Mine are 1 5/8 which may make for different routing of the primaries than yours.Hmmm... my pass side one looks totally different! What part number are those?
This is what mine looks like -
Didn't get a measurement yet. They are in the box on the way to mac.Did you get a drop measurement? Are yours 1 3/4? Mine are 1 5/8 which may make for different routing of the primaries than yours.
Yes, 1 3/4 primaries. That would explain the difference. Thanks again for the research!
No problem, glad to help out. Especially when it comes to someone having trouble with Mac.
Update -
It's been over a month since I sent back the headers and I haven't heard anything from them. I emailed and left phone messages. Now I'm pi$$ed.
These guys are total flakes to deal with. I had to wait over 2 weeks just for a call tag. Now over a month after they received them, I'm $350 out of pocket and don't even have scrap metal to show for it. WTF... this sucks!
MAC will never get another dime of my business and I'll make sure other people will be sufficiently warned.
It's been over a month since I sent back the headers and I haven't heard anything from them. I emailed and left phone messages. Now I'm pi$$ed.
These guys are total flakes to deal with. I had to wait over 2 weeks just for a call tag. Now over a month after they received them, I'm $350 out of pocket and don't even have scrap metal to show for it. WTF... this sucks!
MAC will never get another dime of my business and I'll make sure other people will be sufficiently warned.
This is pretty much the same experience I had with them. I went to BBB and did a terrible review and they tried to defend themselves with the same BS they said to me in correspondence. Hope it works out better than mine did. Good luck.Update -
It's been over a month since I sent back the headers and I haven't heard anything from them. I emailed and left phone messages. Now I'm pi$$ed.
These guys are total flakes to deal with. I had to wait over 2 weeks just for a call tag. Now over a month after they received them, I'm $350 out of pocket and don't even have scrap metal to show for it. WTF... this sucks!
MAC will never get another dime of my business and I'll make sure other people will be sufficiently warned.
I ordered a 3" catback from them years and years ago. it came in about 7 days later. this was around 1999, fast forward to around 2007 I ordered another one. I actually gave up and forgot about it and it showed up about 8mos later
That's sad to hear. At least they were talking to you.This is pretty much the same experience I had with them. I went to BBB and did a terrible review and they tried to defend themselves with the same BS they said to me in correspondence. Hope it works out better than mine did. Good luck.
If they don't end up making good on this, I will pay them a visit and also talk to the local police. I bought my headers directly from them and I'm in the warranty period, so they are fully obligated to make good on this.
Yeah, they were talking to me defending their poor quality control methods and how they weren't going to take care of their customer. But I definitely feel for you man; as I've said before, mine are just collecting dust along with a nice UNUSED Prochamber. Hope you get some resolution.That's sad to hear. At least they were talking to you.
If they don't end up making good on this, I will pay them a visit and also talk to the local police. I bought my headers directly from them and I'm in the warranty period, so they are fully obligated to make good on this.
So I finally got my headers back. Mac is telling me the headers fit perfectly on their assembly jig and they are designed to fit with the passenger side collector sitting higher up due to the taller pass side exhaust pipe notch at the crossmember.... wah wah wah...
I learned my lesson on this one. Never again would I buy another mac exhaust product. Their horrible customer service alone was enough to put me off. Buyer beware.
I learned my lesson on this one. Never again would I buy another mac exhaust product. Their horrible customer service alone was enough to put me off. Buyer beware.
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