[67cruiser]

ok 8 hrs trying to install pass. side header, easiest i fill no luck myH11989 OBOX hitting lower a arm & lying against motor, not even a close fit. Who,s running doug,s or mad dogs, Mad dogs have one removable pipe. Whats your thought,s on these headers. Easy to install??

[BILTIT]

OBOX? never heard of and cant find any info on them.

[Sirrotica]

Originally Posted by BILTIT

OBOX? never heard of and cant find any info on them.

You can't find anything on them because as usual, the brand is misspelled. OBX is the brand and they are cheap Chinese knockoffs, you get what you pay for.

Here's a whole post about them: http://forums.maxperformanceinc.com/...&highlight=obx

Some people said they're okay, some didn't like them very well.

[67cruiser]

Sorry my typing skills suck big time. OBX Sold by Racing Parts.com

[BILTIT]

For what vehicle? I searched obx and the part number and still didn't find anything.

[67cruiser]

Part no. H11989 Sold on ebay for 64-7 GTO set them down with a picture of doug,s and they look identical. OBXGenuine Products & design of USA obx

[t money]

You can still sell it all and buy the Prius Haha. With all the questions you ask I did not see any on headers???

[D. Miles]

http://www.ebay.com/itm/OBX-Racing-S...b023ec&vxp=mtr

Awesome quality... thick stainless tubing, beautiful tig welds and extra thick flanges but I guess that all goes to crap if they don't fit! I have a set of OBX headers on my turbo sbc and love them but apples and oranges.

[Hooter]

I may sell my Indian Adventures Rich in about a month after doing some dyno testing with them. Install in 20 minutes wi motor sitting in car.

[ponjohn]

Maddogs fit great in my 71 Ventura

[carcrazy]

I've used Hooker Super Comps and Dougs with no signficant problems.

[Old Goat Racer]

I have Doug's round port on my 65, 69 & 70. Love'm

[LiL Jack]

Doug's headers are the best I have installed.

[SLICK1]

Maddogs on my Bird, great fit and quality!

[john marcella]

All this talk about fit, what about power? Just sayin

[pont406]

Originally Posted by 67cruiser

ok 8 hrs trying to install pass. side header, easiest i fill no luck myH11989 OBOX hitting lower a arm & lying against motor, not even a close fit. Who,s running doug,s or mad dogs, Mad dogs have one removable pipe. Whats your thought,s on these headers. Easy to install??

Most headers are not easy to install on a Pontiac, maybe your motor mount spacers have something to do with them not fitting?

[screamingchief]

Originally Posted by pont406

maybe your motor mount spacers have something to do with them not fitting?

This ^^^^ is what popped into my mind when I first saw this thread...

Even what some would consider a small change in engine position,can indeed have a big impact when it comes to something like header clearance.

Hard to say for sure though.

Bret P.

[RUDOLFSSON]

So you have an American muscle car with Chinese headers... LOL

[Hammertime Mike]

Dougs on my 65, fit with no clearance issues.

[Blued and Painted]

Dougs on my 73 F-body. Very minor flatening of #2 tube going over the sub frame for extra twisting effort clearance. Plenty of room at oil filter and the big starter fit with 1/4" clearance.