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  1. #1 Re: choppin out catalytic converter 
    The Blue One blueguy's Avatar
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    Meh...my cam hurts MPG

    But when I had my 3" Exhaust custom made and my 3" Shorty DP put on (No cat, res., or u-bend) I gained about 4 mpg's...but staying out of it was the problem
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  2. #2 Re: choppin out catalytic converter 
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    I'll admit I had my foot in it for the first week and its not that much to brag about now. But could it just be the winter fuel, im not sure if thats even true but my friend said in the winter his toyota gets horrible mileage. Honestly its getting on my nerves now, knowing i was getting 26 mostly on my GT and now close to 15- 22.
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  3. #3 Re: choppin out catalytic converter 
    I AM PEWPIN! rynoman03's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    Meh...my cam hurts MPG

    But when I had my 3" Exhaust custom made and my 3" Shorty DP put on (No cat, res., or u-bend) I gained about 4 mpg's...but staying out of it was the problem
    I hear that. I get 29 to 31 if I don't romp on it at all. But I just can't do it. I was getting 30 the other day and some ass in a Lexus cut me off while talking on his phone. Plus it doesn't help that I have road rage . I watched my mpg go from 30 to 26 in about 15 second.

    Back to the Catt conversation I went cat less about a month ago and no my car is loud as hell in the cab at certain rpm's. Definitely going to have to get a res or a larger glass pack for resonance.
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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