Installing a 2 1/2" Exhaust...

[da84tona]

On an 84' Dodge Daytona Turbo Z, I beleive it has 2 1/4" on it stock. If I get a 2 1/2", Will I have to change the turbo outlet?
Also, Where do you guys get your exhaust systems? Im looking for some good prices. ('Im a tight ass') :thumbs up



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|Matt|
http://www.myturbododge.com/?fuseact...w&uid=da84tona
84' Dodge Daytona Turbo Z (Daily Driver w/ Slight Mods)
89' Dodge Daytona ES (Hope to Have Some Serious Mods in their soon)
87' Plymouth Horizon (Awaiting a '2.2 Turbo')

[SuperSleeper]

The turbo will then be a 2.25" swingvalve, which will not bolt up to a typical 2.5" downpipe. However, many take the stock dp and weld about 4-6" of it to the 2.5", so you can keep the same Swingvalve. This is not recommended if you intend to make serious power out of your vehicle, however. That will then become the bottleneck.

[FrankNbeans]

go with a cat back system untill you can afford the 2.5 swingvalve and down pipe.. this is what i am doing.. but i am goig with a 3"

Has to where do we get them all .. there is 2 vendors i know of
1. www.fwdperformance.com
2. http://www.forwardmotioninc.com/html...es_exhaust.htm

[glhs727]

You can use a 2.5" downpipe and catback exhaust on a 2.25" swingvalve. you will need to take a dremel or similar tool and elongate the bolt hole openings on the downpipe flange and bring them closer together until they match the holes on the SV. The donut is a tight fit, but will seal and work fine. I did this to my 87 SL a while back. 3 years later and still no leak at SV/DP.
Later,
Cindy

[da84tona]

Just wanted to say thanks to everyone for their help and patients with my newbie question

[dwh4784]

Quote:

Originally Posted by glhs727 You can use a 2.5" downpipe and catback exhaust on a 2.25" swingvalve. you will need to take a dremel or similar tool and elongate the bolt hole openings on the downpipe flange and bring them closer together until they match the holes on the SV. The donut is a tight fit, but will seal and work fine. I did this to my 87 SL a while back. 3 years later and still no leak at SV/DP. Later, Cindy

I just did that on my 85 new yorker with a 2.5" downpipe from an 89 T1 car, opening up the holes is easy.

[Timby101]

Since it was brought up......just how much of a bottleneck is the 2.25" swingvalve if going to a 2.5" exhaust on a garrett with ported head and manifold....?