Random Technology's SuperStainless...
Random Technology's SuperStainless catalytic converters offer a significant flow increase compared to stock converters. Universal style converters are typically used on late model truck engines because the original converters are welded into the Y-pipe.
The best way to optimize ECM/PCM settings for your particular driving requirements is with a programming/scanning system such as EFILive's FlashScan. This system includes software, which will run on virtually any Windows-based computer, and the cabling necessary to connect a vehicle to a PC. The cable includes a "black box" which not only handles PC-to-vehicle communications, it can also serve as a stand-alone data logging device.
FlashScan can be used to reprogram multiple ECMs/PCMs, so if you're soinclined, you can use it to improve the performance of your Corvette, as well as your truck (and a variety of other GM vehicles). On the other hand, there's a relatively steep learning curve associated with electronic engine controls, and if you don't want to climb it, you can order a "mail order tune," or have a professional tuner email you a file that you can "flash" yourself, and use a learning tool.
Low restriction air filter...
Low restriction air filter elements definitely improve an engine's breathing capability. However, the filtering capability of some brands is a matter of debate. It's a good idea to periodically check the engine side of an element, to be certain that dirt and accursed foreign matter don't "filter" through.
Regardless of the method you select, your end goal is to optimize operating efficiency at the rpm and engine load levels that your truck encounters when it's hauling your Corvette. Keep in mind that most control settings are contained in "maps"- two- and three-dimensional arrays with individual values associated with specific rpm levels and amount of engine load. Consequently, you don't have to be concerned that changes made to improve towing performance will have a negative impact when you're not pulling a trailer-or vice versa.
Ideally, reprogramming should be done after all other modifications are made, but in the real world, that's not always possible. One of the benefits of using reflashing software is that you can change settings whenever you like, as often as you like. So if you plan to make additional modifications in the future (such as the ported heads/cam installation we have planned for our Silverado), you can re-optimize the settings as required. Some tuners also offer free or low cost "re-dos," so even if you don't have reprogramming software, you can have your truck's computer updated very economically.
Another benefit of reprogramming your truck's PCM is that you'll also improve its performance when it's not towing a trailer. That won't make your truck as much fun to drive as your Corvette, but it will certainly help.
| Difficulty Index - 3 Wrenches |
| Anyone’s Project: no tools required | 1 Wrench |
| Beginner: basic tools | 2 Wrenches |
| Experienced: special tools | 3 Wrenches |
| Accomplished: special tools and outside help | 4 Wrenches |
| Professionals Only: send this work out | 5 Wrenches |
Whether it's part of a complete...
Whether it's part of a complete system, or a separate piece, a low restriction muffler offers a number of benefits. In addition to improving exhaust system flow, it also improves the tonal quality of the exhaust.
CNC-modified throttle bodies...
CNC-modified throttle bodies provide improved air flow and crisper throttle response.
If you look at the numbers...
If you look at the numbers on the graph and compare them to ones in the text, you'll find they don't agree. For good reason-the baseline test on the graph was done before the speed limiter had been raised, so the engine never reached the rpm at which it makes peak horsepower. That's a trick played by some tuners to make it appear as though they increased power more than they actually did. Note the difference here is 40 horsepower. After we eliminated the speed limiter restriction, the difference was only 24 horsepower.