I'm thinking about getting the MAC headers and prochambers from Brenspeed in their package. Has anyone gotten them, if so how do you like them? What kind of number improvement can i expect, if any?

 

A member claimed 16hp and 20'ish torque.

 

Not bad... anyone else... maybe a sound clip?

 

You could try pm'ing Eleanor Dreaming, he has this setup I think.

 

are the mac headers full longtubes like the ARH? If so I'd love to match them up with my Prochamber

 

Mac headers are mid-length. I am considering the same setup and have been searching for sound clips with GTA mufflers... no luck so far. I really like the clean deep sound that the prochamber gives, I just wonder what the headers affect will be on overall sound.

Either way, everyone I have talked to has had positive reviews on this setup. I will most likely pull the trigger in January myself.

 

The Mac headers/prochamber is a sure fire way to give you ponies, and a nice sound all at a fair price.

 

I haven't seen any Mac header on the market that is mid-length. I've seen ceramic coated shortys and ceramic coated long tubes produced by them. Personally, the Mac's are the best bang for the buck (besides OBX). You can find a brand new set for about 430-460 (just the long tubes). If you go to www.brenspeed.com they have both shorty and long tubes.

 

I have read that the MAC longtubes aren't true LONG tubes, but are slightly shorter than traditional longtubes. Regardless, still a very good bang for the buck, and in fact next on my mod list.

 

Correct...

Mac calls them Longtubes, and in a sense the pipes are indeed LONGER then shorties but they are not equal to that of ARH, Kooks, BBK, etc...Which is why I consider them more of a midlength header.

 

and I would presume as a "mid-length" header they will not have as substantial gains as a true "longtube", correct?

 

i like that mac package brenspeed sells. but isn't 1 3/4 tubing best for blower applications and 1 5/8 for na? if that is the case, i would imagine you would lose some potential power due to the decreased backpressure, right? idk.

i was going to ask brent that question, but never got around to it. didn't want to bug him since i wasnt ready to buy yet.

 

1 5/8 headers will improve low end torque while the 1 3/4 will help your top end. That's about it.

 

Which would be most beneficial to a n/a GT?

 

Nice package.

 

Really not much difference but 1 5/8 will be the best for a N/A car. Will help keep the torque up on the low end better. But you are only talking a few ft/lbs most likely.
Scott

 

Does any one know if that Brenspeed package has a good set of locking nuts for the headers and a good pan or something like that. My mechanic who works on my car said that he knows headers come loose a few weeks later and I want to avoid this and I don't remember what the other thing was he said to make sure of (the pan???). I tried to contact Brenspeed but they didn't answer. Anyone?

 

I know the answer to this. They do not come with a kit. I am ready to install my OBX headers this weekend and I bought these. They are Stage 8 locking header bolts. Once they are torqued they cannot come loose. They aren't cheap but will offer peace of mind.
Scott http://cgi.ebay.com/ebaymotors/ws/eB...m=200183947852

 

Your headers came in?

 

Yes mine got here this past Wed. Larry (Aircare84) is coming to help me with my install today. I am impressed with the quality of these OBX headers. I will start a new thread on the OBX headers and how my install went. I have already taken some pictures to help provide a little more info on them.
Scott