Oh one more thing, is it better to have the H-pipe before the resonator or behind it? I notice that the LT4 exhaust has a H-pipe near the rear just before the major bend to the mufflers.

I have a H-pipe and I really like it.

Well one thing is known, my resonator from B&B is not a cross over type.

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I have a H-pipe and I really like it.

What is it you really like? Sound or performance or both?

Well, this is a complete B&B 3" catback that I'm adding the "H" pipe to. The system is just a few dbs louder than the Corsa catback, but has a much deeper tone. I tried it without the resonator and I still have ringing in my ears so it's back to the resonator. I thought I'd try out the "H" pipe for grins.

Strick,

I am curious, which generation of the B&B do you have? Mine is the first Gen and has THE RESONANCE ISSUE! I am interested in finding out what the difference is by Generation? Is it truly improved? Keep us posted on the H pipe!

Yes Tom. I've never added an H or X pipe to anything that the increase in torque and response was not readily apparent. Every dual system needs one or the other.

Tom, have you considered spacing the X-frame just a bit to add clearance? I spaced my R-D X-frame just a bit on the front corners to gain a bit of exhaust clearance. Just a 1/4" in the front should get you some good exhaust clearance and shouldn't have a major effect on ground clearance.

I haven't seen a factory X in some time and have never compared one directly to my R-D one. The only place the R-D ever scraped was at the left rear corner, with the exception of one good hit it took in the middle one time. But that rear corner is a PITA. And when I look at the design back there, I see that IMO it should have been done a bit differently. An easy 1/2" or so of additional ground clearance could be had with some reworking. Where have you had a problem with the factory brace hitting? Have you lowered your car any? Mine's about an inch or so lower in the back, still stock in the front. I no longer use the X-frame on the street, it's just more trouble than it's worth. I can bolt it on in a few minutes if I'm going racing. Of course I realize that running without it is not a practical solution with your convertible.

The times I hit, it hits on the pass side close to the center. My vert isn't lowered, but it does sit lower than most. I'm going to look for someone with a large press and see if I can flatten the area where the X-frame crosses the exhaust.

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The times I hit, it hits on the pass side close to the center. My vert isn't lowered, but it does sit lower than most. I'm going to look for someone with a large press and see if I can flatten the area where the X-frame crosses the exhaust.

Tom I'd be more than happy to do the press work if you wanted to run it up here some afternoon, no charge of course.. But given the distance, it'd probably be more cost effective to just take it to a local shop. It shouldn't cost much. But if you decide you want to come up here, we'll have a beer and dinner afterwards. Oh, and if you want me to make you a couple of spacers, just let me know.

my answer is like this: NASCAR uses H or X pipes. Considering their rules, their must be a benefit.

Lets get together anyway. Some of our cruises have been a lot of fun.

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Lets get together anyway. Some of our cruises have been a lot of fun.

You got that right. You going to do any racing this year? I want to do more NCCC events this year plus hit the strip some more. Did you know they're building a 1/4 mile track down in Union that's supposed to be open in the spring? It's only about an hour and a half from me and should be closer to you. I know one of the principal players involved in it. It'll be an IHRA track.
And as I'm sure you know they'll soon be one in Concord too, as soon as Bruton is done playing with his marionettes!

Union is going to have a 1/4 track? That's cool. My neighbor has a trailer and if he let's me use it, I'm there. I don't want to go to the drags without a way home.

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Union is going to have a 1/4 track? That's cool. My neighbor has a trailer and if he let's me use it, I'm there. I don't want to go to the drags without a way home.

The way you baby that thing? You don't have to worry. Do you have some DRs? You'll need them. Street tires are "teh suck" at the strip on these cars. Ask me how I know! :thumbleft:

DR's ...NO. Just what's left of my 11" auto cross tires. Might as well burn them away. I think we'll be running my son's Camaro when we finish installing the cam and carb intake project.

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DR's ...NO. Just what's left of my 11" auto cross tires. Might as well burn them away. I think we'll be running my son's Camaro when we finish installing the cam and carb intake project.

That's cool, they ought to work pretty good. I'll get an update on the Union strip project soon and see if they're still on track for an opening in April. It'd be fun to meet up with you and your boy down there for a day of blasting down the track.
Does that mean you've given up on selling the B&B system? I think you'd regret that, you wanted it for so long. If you ever want to leave the car up here for a few days, I guarantee you I can make it all work. Remember that job I told you about a while back? Well it's happening. So I'll have access to that shop too if needed, if I can't do everything in my own shop.

Also Tom, there's no reason the pipes couldn't be "ovaled" in the areas where clearance is tight. This is done all of the time on race cars to get maximum ground clearance. It'd work equally well of course for your needs.