I have a 1987 IROC-Z with a 305 engine and automatic tranmission. Will these two kits fit? It says the headers are supposed to go with that kit, and from the application notes/installation images it looks like it could be made to fit my car, but I'd like to know before I purchase something like this.

http://store.summitracing.com/partde...5&autoview=sku

http://store.summitracing.com/partde...ew=1&N=700+150+



And if this is a crappy system, by all means let me know. There arent any shops in my area who will touch my car with tags on it to make me a dual exhaust, so i'm open to other options.

 

Looks like it should work, you will need to provide a muffler though and a cat if you want one.

The header coating will not last and will rust out, and i'm not sure who has any experience with them. I never even knew dynomax made headers for our cars.

That is not a dual exhaust system either, its pretty much a factory replacement system. I don't think there is a spot for a catalytic converter unless you cut the intermediate pipe.

Most shops will not touch that system unless you are planning on running a cat.

 

???
Just buy a single 3" exhaust system. No fuss no muss.

 

http://static.summitracing.com/globa.../wlk-89009.pdf

That's the "instruction" page that goes along with that system. It looks like dual exhaust to me. I'll call summit and ask them about it. I may wind up going with another header if I can find one that would fit easily.

As for a 3" exhaust I prefer the way dual sounds to just one pipe.

 

I think you should really think about this before deciding. If you're read many of the threads on this topic on the forum you may reconsider. It's a gigantic hassle and the gains are negligable to none. Lots of drawbacks though.
Many fast cars on this forum have single 3", and sound really great.

 

I respect your opinion, but if I can get away with dual exhaust without having to custom-make the entire thing (eg buy a kit like the one linked from summit) I would rather do that.

If it turns out that that particular kit is crap, and there arent any other viable options then I can resign myself to doing single pipe. This car is about the fun, not the speed for me, and I'd have to get an ultraquiet muffler on a 3" pipe because I just plain do not like how they sound on a small block engine compares to dual. (Having run both before on another car)