Horsham Developments

Horsham Developments www.h-dev.co.uk You can also text or WhatsApp on 07425 231580

22/01/2026

180SX in for external wastegate fitting, injectors and mapping. 307bhp on a GT28R at 1 bar. Very clean chassis - not bad at all for a 33 year old car.

Just had our M2 comp on the dyno - running Milltek turbo back system with off the shelf Bootmod3 map. We'll be swapping ...
17/01/2026

Just had our M2 comp on the dyno - running Milltek turbo back system with off the shelf Bootmod3 map. We'll be swapping the standard turbos out for hybrids soon, along with custom exhaust system and custom mapping - should do well over 600bhp

We're fitting this Lotus with a danST individual throttle body kit and ECU Master engine mangement. The power run shown ...
19/12/2025

We're fitting this Lotus with a danST individual throttle body kit and ECU Master engine mangement. The power run shown is the before power figure from the 2ZZ engine - it already has a free flow exhaust and piper cam. Once the throttles and ECU are fitted we'll get it back on for tuning and see what we can get out of it.

We'll be closed from 24th December for Christmas holidays - back open on the 5th January 2026
17/12/2025

We'll be closed from 24th December for Christmas holidays - back open on the 5th January 2026

11/12/2025

One of the highest powered normally aspirated 370Zs we've had in. We fitted Z1 intake, ISR headers, cats and then remapped using ECUTek software.

Audi S3 in for a custom exhaust build - 3" stainless cat back going into a twin exit silencer and oval tips.
05/12/2025

Audi S3 in for a custom exhaust build - 3" stainless cat back going into a twin exit silencer and oval tips.

A lovely 370Z we had in for some upgrades:Z1 intake kitZ1 front and rear brake kitISR headers and high flow catsH-Dev cu...
04/12/2025

A lovely 370Z we had in for some upgrades:
Z1 intake kit
Z1 front and rear brake kit
ISR headers and high flow cats
H-Dev custom remap using ECUTek software

Beautiful Porsche on the H-Dev dyno for our friends at . It’s currently suffering from a misfire, so it’ll be heading b...
21/11/2025

Beautiful Porsche on the H-Dev dyno for our friends at . It’s currently suffering from a misfire, so it’ll be heading back for some engine work before returning for a full power run once everything’s sorted

Deals on 350 + 370 clutch and flywheel combos, w-braces and more. Links in comments
20/11/2025

Deals on 350 + 370 clutch and flywheel combos, w-braces and more. Links in comments

06/11/2025

529bhp on V-Power. Went on to make 605bhp on race fuel.

Roses last day with us today - great excuse for a pub lunch
31/10/2025

Roses last day with us today - great excuse for a pub lunch

Address

Unit I3, Gidley Farm, Chieveley
Newbury
RG208TX

Opening Hours

Monday 9am - 5:30pm
Tuesday 9am - 5:30pm
Wednesday 9am - 5:30pm
Thursday 9am - 5:30pm
Friday 9am - 5:30pm

Telephone

+441635247477

Website

Alerts

Be the first to know and let us send you an email when Horsham Developments posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Horsham Developments:

Shortcuts

Share