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I am currently building a sponsor board that I will hang up in our display booth this year. I'll be attending 3-4 NHRDA national events, and the TS event for starters. So I'm looking for decal's from forums we sponsor to give a little back to them, and from any and all authorized dealers to try...

Here is my next question needing answered for the Hood Stack Kits. What style of stack is going to be the biggest mover? I want to make sure I have enough of these on hand when the orders come in. So if you would please vote, and comment here what style you think are going to be the most...

With the final touches being completed on the hood stack application. We were curious on what size to focus on first. 7" set ups, 6" set ups, 5" set ups...or all 3? Maybe 5" will be too small? Any type of feed back would be great, so lets hear it...also please choose what you feel would best...

3rd Annual Diesel Dyno Day ROCKTOBERFEST 2009 When: Saturday 10-10-09 Where: TI Dyno and Tuning Center 776 Center Street Ashtabula Ohio, 44004 440-993-0100 Start Time: 10:00am End Time: When last truck is done! Cost: $55.00 for 3 pulls SAVE $10 if you’re a NHRDA Member! (Must have current...

PHOTO Here is what the 5" aluminized tip looks like. We can make them in chrome if for some reason somone want's a bright tip for drag racing. Part number is L5-2275A If you have any questions feel free to ask.

That's right! Grand Rock is having it's first ever open house. Friday July 10th here in Painesville Ohio, from 4:30pm to 8:30pm. We will have door prizes to win, and be raffleing off a DUAL STACK KIT! We hope to start getting vendors to show up, to promote products, and have MANY trucks to look...

Spring Meltdown 2009 DIESEL DYNO DAY When: May 2nd 2009 Where: TI Dyno Dyno and Tuning Center 776 Center Street Ashtabula, Ohio 44004 440-993-0100 (shop) 440-474-2059 (Kevin’s Cell) Starting Time: 9:30am Ending Time: When the last truck is done Cost: $55.00 for 3 pulls, $45.00 for 3 pulls...

TI Dyno and Grand Rock will be holding their 2nd annual Spring Meltdown Dyno Day. BUT with the economy the way it is, we figured it would be best to let you guys determine which date to hold our event. So there will be 3 dates to choose from, and please vote for the "BEST" date for you. If...

Ok, here in the near future, Grand Rock will be introducing our black stacks. Today I received my first samples back from one of our possible coaters. These are done in a satin finish, with a clear coat on top of that. They are rated to handle up to 2400*F! So...I'd like to hear everyones...

While we are working on the hood stack still, we are also going to be introducing a turn up tip. These tips are designed for the guys who race or pull, but do not want the stacks in their truck beds. With several orginazations requiring the exhaust to exit upwards, this is an ideal tip to...

And The Winner Is: Tim Taylor of Statford, CT The Stoneman Family would like to thank your for your donation, and congradulate you on winning! Grand Rock will ship out your prize ASAP! We hope you'll enjoy this 7" Dual Stack Kit with 7" Aussie Stacks. Worth over $700.00!

That's right I'm proud to announce that you can now go and purchase Grand Rock Hats, or Powerflow T-shirts and Hats now! Our store is finaly open, took a little longer than expected, but is well worth the wait. Go here: http://www.grpipes.com/grandrockstore.asp to see what we have to offer...

So, we are toying with building a "Hood Stack" kit. Most likely availble in 5, 6, and 7" straight or miter cut styles. My question is would you rather see an easy bolt on style application, or a weld on application? Let's hear your feed back please! Thanks in advance!

Have you guys seen any power increase from using Veggie oil? I've been at a couple dyno events and the owners of these trucks have told me they have not seen any power gains. I'm on a local forum to me, and this kid is claiming his GEN 1 dodge gained 23 HP by switching to veggie oil...I asked...

That's right it's that time of year again. TI Dyno will be holding their 2nd annual "Rocktober Fest" ALL Diesel dyno day! Here is the info guys! Hope to see some of ya out there.

Our down pipes are a 2pc down pipe. The top part connecting to the turbo is a 3.5" diameter pipe, it's only maybe 20" long if that, then the 2nd pipe that connect's to that is 4". We use the 3.5" top piece because it is such a tight fit, and expand it out as soon as we can for the most air...

Grand Rock is looking at possible expanding it's product line. While sticking with exhaust systems, we are curious what type of performance mods are you looking for? For example, hood stack applications, exhaust tip turn ups, for those of you not running stacks, but need the exhaust to exit up...

Gotta buddy looking for the best bang for the buck. He's got a daily driver, and he plans to pull with it. He'd like a ball bearing turbo. Who would you guys suggest he use? garret 38r turbonetics bb or the hightech drop in replacemant turbo he is going to b running 230cc injectors will the...

Well for all of you who have (in the past) changed your exhaust system, and had something wrong happen to your V-Band clamp, Grand Rock will now offer replacement V-Band clamps. Thats right, 94-07 Powerstroke's, both 7.3L, and 6.0L, Dodge's 03-06 5.9L, and the Duramax LB7, LBZ, and LLY motors...

Well with Grand Rock having new majority owners, we are preparing to launch a online shopping cart. Soon you will be able to buy Hats, Polo's, T-shirts, things of that nature. I'm asked probably 50-100x's a month for things like that, so we figure why not have it? Soon you'll be able to go...