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Discussion Starter · #1 ·
I have a 2003 svt, with a 2.5 inch exhaust and AEM cai. If i fully floor the throttle or am under acceleration after 4000 rpm my car will sputter and miss pretty badly. What do you guys think?
 

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When the cat fried on my old zx3 it would do that. The night it got real bad my shorty header was glowing red.

Check your exhaust backpressure.

Anything over 3 psi at WOT is blocked. N/A that is.
 

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my svt did the same thing ended up being to big of a gap on my spark plugs. the dealership gaped them at down to .035 they said they were at.045 but when i changed them last time i gaped them at .040 and no problems.
 

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Discussion Starter · #5 ·
Thanks a lot for the input! I think I am going to try the spark plugs first because I had my friend pick up some new ones for me and he bought some made in china plugs called E3
 

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Ya E3 the best plugs on earth I put those in my lifted durango because I heard people where getting better mpg and I lost all the gains I already made
 
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