Underdrive pullies on a 2003

nickthegenius said:

I was doing a search and came upon an old thread from late '02 or early '03 with what I feel are a few "myths" about the '03s. The thread starter claimed that the '03's had different cams, pullies, and a few other things. Most of them were dispelled except for the one about the pullies. Some other people chimed in and basically stated the same thing that one of the stock pullies is smaller and that u/d pullies have little effect on '03 GTs.

So my question is if there is anyone with an '03 that has done a before/after dyno with their pullies. What are your thoughts on this?

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nickthegenius said:

I was doing a search and came upon an old thread from late '02 or early '03 with what I feel are a few "myths" about the '03s. The thread starter claimed that the '03's had different cams, pullies, and a few other things. Most of them were dispelled except for the one about the pullies. Some other people chimed in and basically stated the same thing that one of the stock pullies is smaller and that u/d pullies have little effect on '03 GTs.

So my question is if there is anyone with an '03 that has done a before/after dyno with their pullies. What are your thoughts on this?

Click to expand...

nickthegenius said:

I was doing a search and came upon an old thread from late '02 or early '03 with what I feel are a few "myths" about the '03s. The thread starter claimed that the '03's had different cams, pullies, and a few other things. Most of them were dispelled except for the one about the pullies. Some other people chimed in and basically stated the same thing that one of the stock pullies is smaller and that u/d pullies have little effect on '03 GTs.

So my question is if there is anyone with an '03 that has done a before/after dyno with their pullies. What are your thoughts on this?

Click to expand...

cronin49 said:

I have an '03 too and am interested in your question. I know that for '03 we have bigger valves and the suspension was tweaked.

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BNH4.6 said:

I noticed very little if anything from my pullies. I won't buy them again on any future mustangs I may get.

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