Frs stock Header (Jig)

[sroby]

I made up a Jig for the stock header to swap out the front cat. I copied the one that I saw from Kodenawe47 from the UK. I purchased a nearly brand new head pipe off ebay for 80.00. I will be able to keep mine new and in tack for later on. I will be at my friends exhaust shop next week and he is going to help me fab up the cat replacement. He learned very well from his father as his dad used to hand make all the exhaust for the older street going Panoz roadsters built up near Road Atlanta. If all goes well hopefully we will be able put the new collector in and (test pipe) without having to keep test fitting the head pipe. If it works out seamlessly and strait forward, this will save me a few dollars until I decide on a supercharger or turbo unit next year. I will post updates hopefully next week. Regards Steve

[Lantana frs]

Good work so far, however the cat is not the problem with the stock header. Tube length and diameter are bigger issues in terms of power production.

[Cole]

Originally Posted by Lantana frs

Good work so far, however the cat is not the problem with the stock header. Tube length and diameter are bigger issues in terms of power production.

Hahahahahaha

[Luftwaffel]

Originally Posted by Lantana frs

Good work so far, however the cat is not the problem with the stock header. Tube length and diameter are bigger issues in terms of power production.

The turd stuck in my toilet isn't what keeps it from flushing, it's the piping diameter.

[bfrank1972]

Interested to see the results!

[Lantana frs]

Originally Posted by Luftwaffel

The turd stuck in my toilet isn't what keeps it from flushing, it's the piping diameter.

Eat healthier

[Luftwaffel]

Originally Posted by Lantana frs

Eat healthier

I was illustrating that the header cat is easily the most restrictive part of the entire exhaust chain.

[Lantana frs]

Originally Posted by Luftwaffel

I was illustrating that the header cat is easily the most restrictive part of the entire exhaust chain.

Not arguing that. Why do all that work when u can get a used, proven header for 300 bucks?

[Luftwaffel]

Originally Posted by Lantana frs

Not arguing that. Why do all that work when u can get a used, proven header for 300 bucks?

I was simply responding to the bit about the cat not being the problem.

I admire the DIY spirit but I'm inclined to agree about getting a nice used aftermarket header. Resale on a used part isn't likely to move much.

[Lantana frs]

Yeah, it always the original owner who takes the hit. I speak from experience.

[wparsons]

Originally Posted by Luftwaffel

I was illustrating that the header cat is easily the most restrictive part of the entire exhaust chain.

Most restrictive, sure. But the primary/secondary lengths/diameters are also not optimal for making the best N/A power. There's a lot more power to be had with a better design than just removing/gutting the cat.

[BRZoomTX]

Originally Posted by Lantana frs

Not arguing that. Why do all that work when u can get a used, proven header for 300 bucks?

Some people prefer to spend time rather than spending money.

[Luftwaffel]

Originally Posted by wparsons

Most restrictive, sure. But the primary/secondary lengths/diameters are also not optimal for making the best N/A power. There's a lot more power to be had with a better design than just removing/gutting the cat.

I have a habit of thinking in FI terms, sorry.

Agreed, but I think OP is more looking for the cheap way out regardless, and I really wonder about the gains of most cheap aftermarket headers. Dyno error and all that.

[Lantana frs]

Originally Posted by Luftwaffel

I have a habit of thinking in FI terms, sorry.

Agreed, but I think OP is more looking for the cheap way out regardless, and I really wonder about the gains of most cheap aftermarket headers. Dyno error and all that.

I can tell u from experience that a good header and proper tune will wake these cars right up. Definitely more than anecdotal results.