What is a Diesel Tuning Box?
Once fitted, our tuning modules aim to give you more usable power and much more available torque. As a by-product of this your turbo lag will be greatly reduced making the car much nicer to drive. The additional torque also allows the car to pull better at low revs which means that you can be in a higher gear more of the time, reducing fuel consumption by around 10% on average. The additional torque will be of great assistance if you tow a trailer or caravan.

Telephone Support & Free Fitting at our premises
Unlike other eBay sellers we have a team of technicians, engineers and sales staff available Monday-Friday 9am-5pm to help with any questions or problems that you may have. We have years of experience and will be able to advise you on what our products can offer you and what is right for your car. We have vehicle lookup facilities and can identify your engine details and power output from just your registration number if necessary. This also means that you can fit our units with confidence, if you have and problems you can give us a call and our support staff will be able to help.
If you are local to us we will fit your unit free of charge (excludes 1.4/1.6 HDi/TDCi).

Digital Microprocessor Modules
At Bluespark we make digital tuning modules specific for each application they are purchased for. We make some of the most advanced tuning modules on the market right here in the UK. Nothing we sell is generic, and all of our modules are digital microprocessor based units, we only sell high quality products. Don't be fooled by the majority of eBay sellers who offer generic products which they claim to be digital, if they are selling from a residential address with generic instructions, it is likely that they also didn't set up the mapping on the module for your engine? We datalog each engine and our engineers create fuelling maps to give optimal performance for each application.

What is the CR Tech 1?
These are high quality tuning modules which will be programmed on an individual basis based on the vehicle details you provide. They are manufactured by Bluespark Automotive in the UK under their CR Tech brand and are not comparable with low quality 'resistor boxes' or other generic tuning kits available on eBay; these units rival those costing £300+ but without the added costs usually associated with reselling 3rd party boxes. We are both the manufacturer and retailer. Once this stock is gone, it's gone. Please do not compare these modules with those sold by eBay sellers with no commercial premises who will send you a generic box to raise fuel pressure regardless of the car you own.

Is there a CR Tech 2?
Yes, we have improved upon the design of this unit and released the CR Tech 2 unit which offers even further improvements in torque and future proofing in case you change your vehicle. Seach eBay for 'CR Tech 2' to read more. Alternatively this gives you the opportunity to buy our very successful CR Tech 1 unit at a bargain price!

Warranty & Guarantee
We are a professional tuning company and are proud to issue all of our customers with a 28 Day Money Back Guarantee and a full 2 Year Warranty on every product we sell. We offer this because we KNOW that you will love the product and if you don't we will refund you in full, you can't lose!