Headers & Sidepipes

[Tim Brewer]

Oh yea, Superformance sidepipes have been known to wipe off 100 horsepower at times. That should be your first upgrade.

[ROMM]

Hey Steve, Tim is right. You have a good opportunity to make on of the best mods on your car to keep up with that 427. You should send your pipes to Rob Camp at Keith Craft. He will change out the exhaust to a much better free flowing one (for a serious gain in horsepower) and even re-coat your pipes like you are wanting to do, all at the same time. Here is one of his posts from a recent exhaust thread:

"I have built several side pipes for SPF and Lone Star cobra's using the Howe Muffler and merge collectors and have consistantly picked up 12% increase in rwh over stock SPF pipes. I have done it on cars with 350 RWH to 508 RWH and we also turn the tips down 15 degrees to make the noise go downward and make the noise more tolerable. We have a special of $995.00 plus shipping to take your stock side pipes and install the merge collector, muffler and tips and re-coat the pipes. I can be contacted at 972-578-3550
thanks"
Rob Camp
Keith Craft Motorsports
Managing Partner

From what I have read, you will probably have to re-jet your carb after the exhaust modification is done. Here is the thread where the above info comes from: http://www.clubcobra.com/forums/showthread.php?t=74401

Hope this helps.

[jwoodard]

RogerH,

Just in case you're not clear on the reponses so far, in a SPF, there is not room to remove or install the headers with an FE or 460 engine installed. If you're doing your initial install, place the headers in the fender wells before dropping the engine in.

Steve,

Tim is correct. The SPF stock side pipes are rather restrictive, as are the Lone Star's.

I've owned both makes and modified the side pipes on both.

[JCoop]

Originally Posted by jwoodard

RogerH,

Just in case you're not clear on the reponses so far, in a SPF, there is not room to remove or install the headers with an FE or 460 engine installed. If you're doing your initial install, place the headers in the fender wells before dropping the engine in.

Steve,

Tim is correct. The SPF stock side pipes are rather restrictive, as are the Lone Star's.

I've owned both makes and modified the side pipes on both.

Jim, what sort of modifications did you do, in case you'd like to share...

Thanks

[RodgerH]

Originally Posted by jwoodard

RogerH,

Just in case you're not clear on the reponses so far, in a SPF, there is not room to remove or install the headers with an FE or 460 engine installed. If you're doing your initial install, place the headers in the fender wells before dropping the engine in.

Steve,

Tim is correct. The SPF stock side pipes are rather restrictive, as are the Lone Star's.

I've owned both makes and modified the side pipes on both.

Thanks Jim.

That was what I initially thought, but I was hoping to learn otherwise. But, no joy. It will be an initial install. I agree with you on the restrictiveness of the stock SPF sidepipes. Definitely planning to do something different with them.

Rodger