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I saw improvements when I installed a hiflow cat, replaced the fuel filter, and did the FIPK.
The FIPK had a strange effect. Normally the 3vze seems to make a LOT of torque the colder the air temp is. The converse was also true, if the air was 100-120 degrees the truck had literally NO power whatsoever. The FIPK changed that - slightly less power when cold (below 80 degree), but a WHOLE lot more power when very hot (100+). Helped gas milage just a touch too and improved top end speed by 3-4mph. All in all I'm happy with the FIPK except for the price.
If you have a 3rd gen dont do the FIPK, you loose hp...
Electric fans, 2.25" exhaust and headers supposedly work wonders as well as synthetic motor oil...
Gadget -
would putting in a different thermostat to keep the temp down + electric fans be an effective ECT mod?
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3vze, 4x4, sr5, 90, auto, LSD
2x dB Drag World Finalist
2003 Nopi Nat. Street B champ
2004 SBN Street C champ
2004 SBN Advncd NW Champ
2004 Former WR Holder in NW.
SPL: 159.8db @ 42hz
In loving memory of Jamie Riggs 5/15/85 - 10/8/04
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