SpinTech -- Bigger Is Better

SpinTech not only manufactures an exhaust system but does custom installations as well.

The downpipes were bolted to the header but not tightened up at this point.

The connection between the header and the downpipe uses a ball-and-cone adapter setup.

For a true dual setup, the downpipe on the driver side must be routed across the bottom and brought up close to the other pipe.

Here, SpinTech mufflers have been welded all the way around the X-pipe and placed up over the crossmember. After that was done, the crew worked the unit forward into the downpipes.

A&B They worked the downpipe pieces into the X-pipe, making sure that both were worked all the way up into the flared area.

A hanger bracket has been welded to the topside of the mufflers. This bracket lines up with the stock hanger bracket on the body. The muffler doesn't look like any muffler we've seen. Notice the small holes in the spin traps.

The Dakota kit can be ordered with either a dual side-exit setup or a dual right-rear-exit setup. Both pipes extend side by side and exit close together at the rear.

This is a true 3-inch system all the way through, with the two side-exit pipes connected together.

They were worked into place and the installer checked to see that there was good clearance around them.

SpinTech uses SuperStock mufflers for its Dakota R/T kit. The mufflers are very compact and their flat design helps them fit easily under a vehicle.

The downpipe is fitted with an 02 sensor fitting, shown here. This fitting can be used as a port to measure exhaust temperatures and air/fuel ratios as well.

There are four 02 sensor fittings in this system, one on each downpipe and one on each side further back. This system is able to monitor both banks near the motor and again further back, which allows you to check air and fuel readings.

After the system is in place, everything must be checked to make sure there is no contact with other body parts. The front portion does not need hangers, since it bolts directly to the headers.

After the entire system has been carefully scrutinized, the bolts on the header flange need to be tightened.

A&B Clamps can be used to hold the system together, but SpinTech strongly recommends welding everything in place.

Our installer started at the downpipes and welded them together.

Then he tack-welded the rear tailpipe assembly and checked the pipes to see that everything still had good clearance around the tailpipe unit.

Then he welded the rear tailpipe assembly.

Here, the system has been completed and looks good. It is tucked up along the framerail, out of the way. The side-exit setup provides the best ground clearance.

Bolt-on stainless-steel tips are furnished with the kit. Our installer worked the back tip up onto the tailpipe, setting it at an angle that looked best in relation to the body.

Here is a good look at the system's stainless-steel tips.

They are the clamp-on type.

Here's the street-legal 3-inch after-cat system. The OE catalytic converters are still used; the new system connects to the back of the main cat. Dual 2 1/2-inch pipes exit out of the side of the SpinTech muffler. The system, which can be either clamped on or welded, provides good sound and a gain of about 15 horsepower.