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has anyone tested this from Clifford's 6=8 performance? They claim 120% more torque and horse power as well as 25mpg. And it's a complete kit that's ready to bolt on. Would this be a good alternative to a full LS swap? I know you won't get AS much performance compared to an LS but its a lot...

I need advice on which drivers side manifold/ header to run. I’m doing an L92 swap and I have a savvy mid arm suspension. If I didn’t have the mid arm kit it would be easy but my biggest hurdle is getting the exhaust from the drivers side ran. Everything I’ve tried hits the upper control arm…...

After found a big crack in the exhaust manifold (4.0L 1998) I decided to upgrade the exhaust line with: Replacing the manifold with a new one, with flexible joints; New bolts set & Fel-Pro gasket Wrapping the manifold with a really good quality Aeroflow exhaust wrap to reduce heat up to 70%...

Well guys I really screwed up. My boss worked at the plant during TJ production in the water and weather test area. The one thing he told me over and over: “Really put pressure on that header seal when you install it”. Did I listen? Clearly not well enough. Son of a gun.

The following parts are from a 2000 TJ 4.0, Manual, 110,000 miles when removed. All parts were in great working order when removed, and stored in garage. If you have any questions, let me know. These parts are located in Eastern Washington and OBO. If you need an item shipped we can discuss...

I have a spare set of banks torque tube headers for a 2.5l tj, I'm selling them because ended up doing an engine swap, but price is negotiable and buyer pays shipping. I'm asking 300$.comes with all necessary parts. Box never open.

Hi all. I am building a new engine for my 03 Rubicon and I would like to use the Edelbrock head but it states that you need to use the older style pre-99 header/exhaust manifold. This presents an obvious problem because I have 4 O2 sensors on my 03 and dual cats. So my questions are: 1. Is...