PRODUCT DETAILS
RV6 Performance J Pipe - 2003-2007 Honda Accord V6 / 2004-2008 Acura TL
If you've driven a J series Accord or TL hard and felt it come on strong at the top and then just kind of plateau, you've felt what the factory exhaust routing is doing to you. Honda kept manufacturing simple by dumping both banks of the V6 together as fast as possible, which means the two sides are fighting each other for pulse timing instead of working together. RV6 has been solving this problem since 2007, and the V3 of their J pipe is what they've landed on after more than 10 revisions. Full length primaries, a gradual merge, and a design that actually respects how exhaust scavenging works. It bolts straight in where the factory piece came out, no cutting, no welding, and you get 13 horsepower and 7 lb-ft of torque at the wheels on a dead-stock base TL. Manual cars and Type-S models typically pick up even more.
Here's What The Factory Setup Gets Wrong
Your J series V6 fires cylinders on both banks, and each cylinder's exhaust pulse has to go somewhere. When that pulse hits another pulse coming from the wrong direction at the wrong time, they interfere with each other instead of helping each other evacuate the cylinders. That's what Honda gave you: unequal runners that dump into a merge box without thinking about pulse timing or scavenging. You get power, but it's peaky and inconsistent, the kind of power curve that feels strong at one spot and then goes flat. Fix the headers and it stays wrong because the J pipe undoes what you did. That's exactly where RV6 starts.
Full Length Runners, Gradual Merge, Equalized Pulse Timing
RV6 runs 2.25 inch primaries the full length they can get out of the packaging, then merges them gradually into a 2.5 inch outlet. The runner lengths are equalized between banks so both sides of the V6 are contributing at the right moment, not fighting each other. That's what cleans up the power curve and turns a peaky pull into a consistent one across the rev range. And here's the part that took over 10 revisions to get right: they tuck one tube behind the other to maximize runner length without killing ground clearance. At stock ride height you're not scraping this on driveways or speed bumps. That's the kind of detail you only figure out by actually building and testing it over and over.
304 Stainless, TIG Welded, And Built To Last
Every bit of this J pipe is 304 stainless, the tubing, the CNC waterjet-cut 1/2 inch flanges, the hangers, the flex pipes. RV6 TIG welds the whole thing and back purges every weld with argon so the inside of the pipe stays clean instead of building up a layer of oxidation that flakes off over time. The triple-lined interlocking flex sections handle thermal expansion and drivetrain movement so the system doesn't crack at the welds or develop exhaust leaks as the miles add up. This isn't a piece that you're replacing in a couple of years.
Dyno Proven On The Most Common Setup In The Community
RV6 tested this on a completely stock 2005 automatic base TL with 55k miles on a Mustang AWD dyno, and that's not an accident. That's the most common car in this community, so that's the result that actually means something to most people buying it. 13 horsepower and 7 lb-ft of torque at the wheels on a bone-stock car. If you're on a manual or a Type-S, you're typically going to see higher numbers.
What You Get
- RV6 V3 long tube J pipe for the Accord V6 and TL
- Full 304 stainless construction: tubing, flanges, hanger, and flex pipes
- 2.25 inch primaries, 2.5 inch outlet
- Triple-lined hiss-free interlocking flex pipes
- Fully TIG welded, argon back purged
- CNC waterjet-cut 1/2 inch flanges
- Maximum ground clearance design, over 10 revisions from the original prototype
- 3x M10-1.5 bolts
- 6x M10-1.25 flanged lock nuts
- 2x 2.25 inch precat to J pipe gaskets
- 1x 2.5 inch J pipe to exhaust gasket
Fits These Cars
- 2003-2007 Honda Accord V6
- 2004-2008 Acura TL
- 2004-2008 Acura TL Type-S
Note: RV6 Performance V3 long tube J pipe for the 2003-2007 Honda Accord V6 and 2004-2008 Acura TL and TL Type-S. No cutting or welding required, bolts directly to factory headers using factory or aftermarket cat-back exhaust and keeps the stock hanger location. Full 304 stainless steel construction throughout, TIG welded and argon back purged. 2.25 inch primaries merge gradually into a 2.5 inch outlet with equalized runner lengths for improved exhaust scavenging and a more consistent power curve. Dyno tested at 13 horsepower and 7 lb-ft of torque at the wheels on a stock 2005 automatic base TL. Manual and Type-S applications typically see higher gains. RV6 has refined this design since 2007 with over 10 revisions. One J pipe per order.