I want to convert my 4 cyl exhaust to dual tips (like the 6 cyl.). Can I use a 2.8l muffler and ends on my stock 2.5l exhaust? Will there be any back pressure or power issues? Also...does anybody know the cost of a 2.8l muffler and tips from Canadian Tire?

Just get the whole system from a V6 car, it'll bolt right on. Be aware that the '88 cars are different, but the '84-'87 years interchange.

JazzMan

They run about 200.00 from CTC. It comes as a welded set of pipes and the muffler all together (cat back). You'll need to add bends from the muffler out and tips.

Do they include the tips themselves or do I have to get those seperate?

Pretty easy to do. I have a dual exhaust setup on my iron duke. I got the Ocelot exhaust from the Fiero store and removed the cat. I also put on Borla tips. All you need to do is add the hangers from a V6 to the rear so the two tips stay up.

-Frank

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that sounds like a pretty good price to me,
equals out to around 150-160 USD.

Does the flowmaster 40 series sound any good
on an iron duke? If not, what does other than stock?

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<Black 86.5 GT, Auto w/ 3.33, Sunroof>
<2.5" Flowmaster Exhaust, K&N Filter and no rain guard>
<Yokohama 215/60R15 Tires, CS130 140 Amp Alternator>
<Pioneer DEH-P77DH, Pioneer 4X10's in dash>

This may be pointing the wrong way, but this is a CTC v-6 exhaust. One end attaches to the cat. It comes all welded together as seen. I think they list it at about 250.00, but they were on sale for 200.00 for a while (I think they're trying to move them out. And you will need 2 small 90 degree bends at the outlets to send it to the back of the car and tips of your choice (single, dual, etc)

Are you talking about dual tip exhaust or a true dual exhaust? With a 4 banger youll need a tri-y style header for true duals. Unless you just want the look by ading another tip.

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I'm talking about using a 2.8L setup from the muffler back. just concerned about any back pressure or power issues involved with the replacment. the fiero store offers a nice dual setup for the 2.5L but I can't afford that so I'm looking for another setup which doesn't involve custom fabrication by a muffler shop.

When I had the duke in my 86se It ran with duel exhaust stock, I believe there the same as the 2.8 exhaust setup.

Like they said get it used from a V6 car. brackets and all. It shouldent affet youre engines performace. might even make it better.

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85 GT 4 speed 2.8L auto X'er

don't worry about backpressure. I ran my 4cyl with no muffler and it ran great.

Turned a 17.0 1/4 as a matter of fact..

Call the local exhaust shops Caleb, I've been buying V6 mufflers from Mighty Muffler on North street for anywhere between 50 and 80 dollars ( depending if theres a sale or not)

I did buy a few from Midas, I believe theres are about 115-120 dollars.

Of course, you will have to find a Right side exhaust tip and elbow. I can modify a left side tip to work on the right side of the car.