97-08 Pontiac Grand Prix ,GXP W-Body BC Racing Coilovers - BR Type
BC Racing Coilovers 97-08 Pontiac Grand Prix , GT, GXP, W-bodyPart Number: ZB-05-BR
The BR series BC Racing coilovers are the perfect choice for your W-body, Grand Prix whether you are street driving or hitting the drag strip for some weekend track action. Featuring easily accessible adjustment knobs and separately adjustable ride height, the BR series makes adjusting and maintaining your BC coilover system easier than ever. Ride height is independently adjustable so you can dial in the exact look to reflect your driving style and performance needs. BC’s patented concave lower locking ring keeps all adjustments locked in and ready for precise predicable feed back in any scenario. BR series coilovers provide a strong, complete and attractive coilover system at a great price.
- Mono-tube shock design
- 30 levels of dampening force adjustment
- Pillowball mounts and front 5adjustable camber plates included
- Separate Full length height adjustable
- One year warranty
- Coilovers use 46mm pistons and 53mm shock housings, the enlarged shock cartridges with specially designed pistons and rods provide a wide range of dampening force
- Valves are constructed of special spring steel, which outperforms stainless steels and produces longer valve life. Valve stacks use a patented deflective system to provide more precise control
- Patented concave lower locking ring, to prevent unseating
- Springs are made of SAE9254 high strength, durable steel. Compression tested at over 500,000 times with less than 5% deformation
- T6061 Aluminum utilized in spring locks and seats for strength and weight savings
- Iron lower brackets on MacPherson struts to ensure rigidity
- Piston rods are constructed of highly polished steel to lengthen oil seal life and prevent leaking
- High pressure inner rod guide seals ensure a perfect fit for consistent fade resistant damping and long shock life
- 2 step coating process utilizing nickel and chromium plating to prevent corrosion
- Newly developed lubricant oil in all shock cartridges minimizes aeration and cavitation
Spring Rates: Front Spring Rate = 5k Rear Spring Rate = 6K
8K front springs are highly recommended for all W Body cars. 3-4 week build time is in effect for 8K springs.
The Wbody Coilovers come with sway bar end-link mounts which are only used on the 2004-2006 Grand Prix, but you can leave them off for all other W-body models.
- 1997-2008 Pontiac Grand Prix
- 1997-2004 Buick Regal
- 2000-2007 Chevy Monte Carlo
- 2000-2011 Chevy Impala
- 1997-2005 Buick Century
- 1998-2002 Olds Intrigue
- 2005-2009 Buick LaCrosse/Allure
If you order these with the rear top mounts, like I did, be wary of it. I have absolutely zero complaints about the coilovers themselves, they're excellent! The ride quality, the build quality, and the overall feel and appeal these have are 10/10. However, the getting shafted out of $55 and having to purchase mounts from a local parts store was not part of the $1050 bill. The coilovers arrived 14 days ago and the mounts that I called and emailed about 3 times within 2 days of getting the coilovers, showed up out of the blue today. And still no word on returning the mounts for my wasted money yet. But all in all, these are a fantastic upgrade for the price. Why spend nearly the same amount of money on 4 way adjustable shocks and lowering springs when you can spend less in total and get actual coilovers? Listen to the description and get the 8k springs up front, or go the extra mile and get swift springs. Either way, you'll be glad you nabbed these!
I bought these coilovers a few months ago and I was very impressed. The kit comes with 2 front coilovers, 2 rear coilovers, longer sway bar end-links for the rear, as well as instructions. You will need to purchase two new rear OEM strut mounts. I did have a couple of issues though. First, I would recommend loosening all of the springs and resetting all of them to the recommended 4mm of preload. I had some rattling coming from the front which I found was due to one of the front springs rattling around from too little preload. Second, DO NOT get the recommended spring rate of 5k for the front. BC Racing North America messed up somewhere along the line because the 5k front spring rate is way too soft for the front of these cars and I promise you will not like your ride quality at all. I contacted Jon here at The Midwest Parts Group and he sent me out a set of 8k front springs without me really having to ask him to. Let me tell you it is a night and day difference. The 8k front springs and 6K rear springs are what should have originally come with this kit. With the new spring rates the car rides exactly as I was expecting when I first purchased the coilovers. It is noticeably stiffer than stock without being harsh. I have these coilovers, the GMPP front and rear sway bars, GMPP front and rear STBs, and some poly bushings and I can out-handle my friend's SN95 Cobra of which he has put thousands of dollars in the suspension and I have a FWD car! Just to provide some evidence that the 5k springs are too soft, I have included some pictures of the 5k springs as well as the 8k springs when the car is sitting in my driveway. The 5k springs are black and the 8k springs are gold. As you can see, the 5k springs are almost experiencing coil bind with the car just sitting on level ground and the 8k springs have plenty of room for suspension travel. Basically, I'd just like to say that I am very happy with my purchase but only after I installed the 8k/6k setup.
This is by far the best suspension upgrade for the W body! I’ve tried multiple combos and nothing compares to these. Well worth the money in the long run. Would highly recommend!
Installed these coilovers with the zzp front and rear strut bars and my car feels like it's on rails now. Definitely a night and day difference.
These are absolutely amazing. First BC coils I've ever owned and the only ones I'll own in the future. These are the best coilovers in my opinion for the reasonable price. Not going to break the bank, but you get a great product. Only compliant I have so far is that the front coils don't go as low as I was hoping. I could remove the bottom lock ring for the spring, and then get another 1/2" lower. But with the bottom shock mount being tough to spin after tightening the bottom two bolts. I don't know if this is an issue with my coils specifically, or all sets, but it's a pain to adjust height because of how difficult it is to spin the shock. Other than that, I have no other issues. Would be nice not use the stock rear top hats, but that's just a minor inconvenience. Thanks again BC Racing! I will come back for any other cars in own in the future!
Also: Fronts are completely maxed. Can't go any lower. But the rears can still go much much lower
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