Do throttle body spacers work on Jeep Wrangler TJs?

There are some products out there that claim to be able to improve on the already significant engineering that has gone into your motor. The 4.0 engine in the Jeep Wrangler TJ is well known to be a hard engine to get power out of in terms of "bolt-on" modifications. You don't stand to gain any

Should I remove throttle body spacer?

First TJ, couple questions

Jeep Wrangler Airaid PowerAid Throttle Body Spacer (2007-2017 JK

Wheel Spacer Kit, Black, Alluminum, Jeep Wrangler TJ, YJ, Cherokee

Opinions on aftermarket throttle body?

Iron Rock Off Road: Throttle Body Spacer

Aluminum Throttle Body Spacer For 91-06 Jeep Wrangler TJ YJ LJ

1.Premium Quality:Made of Durable Anodized Aluminum, the Throttle Body Spacer Replacement for Jeep Wrangle and Cherokee features as to be heavy duty,

YESHMA Throttle Body Spacer Compatible with Jeep Wrangler TJ YJ 1987-2006, Throttle Body Spacer Compatible with Cherokee XJ 1984-2001

Best engine upgrades for the cost?

aFe Silver Bullet Throttle Body Spacers TBS Jeep Wrangler (JK) 07

1993-1998 Grand Cherokee (ZJ) Throttle Body Spacers